Agilent Technologies System DC N5700 User Manual

Agilent Technologies  
System DC Power Supply  
Series N5700  
User’s Guide  
A
Do Not Operate in an Explosive  
Atmosphere  
Do not operate the instrument in the  
presence of flammable gases or fumes.  
Safety Symbols  
Safety Notices  
Direct current  
The following general safety precautions  
must be observed during all phases of  
operation of this instrument. Failure to  
comply with these precautions or with  
specific warnings or instructions  
elsewhere in this manual violates safety  
standards of design, manufacture, and  
intended use of the instrument. Agilent  
Technologies assumes no liability for the  
customer's failure to comply with these  
requirements.  
Alternating current  
Do Not Remove the Instrument  
Cover  
Only qualified, service-trained personnel  
who are aware of the hazards involved  
should remove instrument covers. Always  
disconnect the power cable and any  
external circuits before removing the  
instrument cover.  
Both direct and alternating  
current  
Three phase alternating  
current  
Earth (ground) terminal  
Protective earth ground  
terminal.  
General  
Do Not Modify the Instrument  
Frame or chassis terminal  
Do not use this product in any manner  
not specified by the manufacturer. The  
protective features of this product may be  
impaired if it is used in a manner not  
specified in the operation instructions.  
Do not install substitute parts or perform  
any unauthorized modification to the  
product. Return the product to an Agilent  
Sales and Service Office for service and  
repair to ensure that safety features are  
maintained.  
Terminal is at earth  
potential.  
Neutral conductor on  
permanently installed  
equipment  
Before Applying Power  
Verify that all safety precautions are  
taken. Make all connections to the unit  
before applying power. Note the  
instrument's external markings described  
under "Safety Symbols"  
In Case of Damage  
Line conductor on  
permanently installed  
equipment.  
Instruments that appear damaged or  
defective should be made inoperative and  
secured against unintended operation  
until they can be repaired by qualified  
service personnel.  
On supply  
Off supply  
Ground the Instrument  
This product is a Safety Class 1  
CAUTION  
instrument (provided with a protective  
earth terminal). To minimize shock  
hazard, the instrument chassis and cover  
must be connected to an electrical  
ground. The instrument must be  
connected to the ac power mains through  
a grounded power cable, with the ground  
wire firmly connected to an electrical  
ground (safety ground) at the power  
outlet. Any interruption of the protective  
(grounding) conductor or disconnection of  
the protective earth terminal will cause a  
potential shock hazard that could result in  
personal injury.  
Standby supply. Unit is not  
completely disconnected from  
ac mains when switch is off  
A CAUTION notice denotes a hazard.  
It calls attention to an operating  
procedure, practice, or the like that, if  
not correctly performed or adhered to,  
could result in damage to the product  
or loss of important data. Do not  
proceed beyond a CAUTION notice  
until the indicated conditions are fully  
understood and met.  
In position of a bi-stable push  
switch  
Out position of a bi-stable  
push switch  
Caution, risk of electric shock  
Caution, hot surface  
WARNING  
A WARNING notice denotes a  
hazard. It calls attention to an  
operating procedure, practice, or the  
like that, if not correctly performed  
or adhered to, could result in  
personal injury or death. Do not  
proceed beyond a WARNING notice  
until the indicated conditions are  
fully understood and met.  
Fuses  
For continued protection against fire,  
replace the line fuse only with a fuse of  
the specified type and rating (normal  
blow, time delay, etc.). Do not use  
repaired fuses or short-circuited  
fuseholders. To do so could cause a  
shock or fire hazard.  
Caution, refer to  
accompanying  
documents  
Series N5700 User’s Guide  
3
In This Book  
This User’s Manual contains the operating instructions, installation  
instructions, and specifications of the Agilent Technologies Series  
N5700 750W and 1500W System DC Power Supplies. Specific  
chapters in this manual contain the following information:  
Quick Reference – Chapter 1 is a quick reference section that  
helps you quickly become familiar with your Agilent N5700  
power supply.  
Installation – Chapter 2 describes how to install your power  
supply. It describes how to connect various loads to the output. It  
discusses remote sensing as well as parallel and series operation.  
Operating the Power Supply Locally – Chapter 3 describes how to  
operate the power supply from the front panel and from the  
analog connector on the rear panel. It also includes a turn-on  
check-out procedure to verify the unit is operating properly.  
Operating the Power Supply Remotely – Chapter 4 describes how  
to configure the remote interfaces. It also gives a brief overview  
of the SCPI command structure and basic programming concepts.  
Language Reference – Chapter 5 describes all of the SCPI  
programming commands.  
Programming Examples – Chapter 6 provides Visual BASIC  
example programs that illustrate some common applications.  
Specifications – Appendix A describes specifications and  
supplemental characteristics.  
Verification and Calibration Procedures – Appendix B explains  
the verification and calibration procedures.  
Service – Appendix C describes what to do if your unit requires  
service.  
Compatibility – Appendix D documents the compatibility  
commands of the Agilent 603xA power supplies that are  
supported by the Agilent N5700 power supplies.  
You can contact Agilent Technologies at one of the following telephone  
numbers for warranty, service, or technical support information.  
In the United States: (800) 829-4444  
NOTE  
In Europe: 31 20 547 2111  
In Japan: 0120-421-345  
Or use our Web link for information on contacting Agilent in your country or  
Or contact your Agilent Technologies Representative.  
The web contains the most up to date version of the manual. Go to  
http://www.agilent.com/find/N5700 to get the latest version of the manual.  
4
Series N5700 User’s Guide  
Contents  
1 Quick Reference 7  
The Agilent N5700 DC Power Supplies – At a Glance 8  
The Front Panel - At a Glance 10  
The Rear Panel – At a Glance 12  
SCPI Programming Commands – At a Glance. 15  
2 Installation  
17  
General Information 18  
Inspecting the Unit 19  
Installing the Unit 19  
Connecting the Line Cord 21  
Connecting the Load23  
Output Voltage Sensing 26  
Load Considerations 28  
Parallel Connections30  
Series Connections 32  
J1 Connector Connections 34  
3 Operating the Power Supply Locally  
Turn-On Check-Out 36  
Normal Operation 38  
35  
Protection Functions39  
Output On/Off Control 42  
Analog Programming of Output Voltage and Current 44  
4 Operating the Power supply Remotely  
49  
Configuring the Interface50  
SCPI Commands – an Introduction 59  
5 Language Reference  
65  
Calibration Commands 66  
Measure Commands67  
Output Commands68  
Source Commands69  
Status Commands 71  
System Commands 77  
Trigger Commands 79  
Series N5700 User’s Guide  
5
6 Programming Examples 81  
Output Programming Example 82  
Trigger Programming Example 83  
A Specifications 85  
Performance Specifications 86  
Supplemental Characteristics 87  
Outline Diagram 89  
B Verification and Calibration  
91  
Verification 92  
Calibration 111  
C Service 113  
Types of Service Available 114  
Repackaging for Shipment 114  
Operating Checklist 114  
Error Messages 116  
D Compatibility 121  
Differences – In General 122  
Compatibility Command Summary 123  
Index 125  
6
Series N5700 User’s Guide  
1
Quick Reference  
The Agilent N5700 DC Power Supplies – At a Glance 8  
The Front Panel - At a Glance 10  
The Rear Panel – At a Glance 12  
SCPI Programming Commands – At a Glance. 15  
This chapter concisely describes the Agilent Technologies Series  
N5700 Power Supplies.  
This chapter is not meant to describe every operating feature in  
detail. It is simply a quick reference guide to quickly become familiar  
with the essential components of the power supply. It can also be  
used as a memory jogger for experienced users to quickly find a  
front/rear panel function or programming command.  
Series N5700 User’s Guide  
7
The Agilent N5700 DC Power Supplies – At a Glance  
The Agilent N5700 DC Power Supplies – At a Glance  
The Agilent Technologies Series N5700 System DC Power Supplies  
are general-purpose switching power supplies with a wide variety of  
output voltage and current ratings.  
These power supplies are power-factor corrected and operate from a  
worldwide AC voltage range. Output voltage and current are  
continuously displayed and LED indicators show the complete  
operating status of the power supply.  
The front panel controls allow the user to set the output parameters,  
over-voltage, under-voltage, and over-current protection levels, and  
preview the settings.  
The rear panel includes the necessary connectors to control and  
monitor the power supply operation by analog signals or by the built-  
in remote communication interfaces.  
Output Features  
Constant voltage/constant current with automatic crossover.  
High-resolution voltage and current front panel controls.  
Accurate voltage and current readback.  
Independent edge-triggered external shut-off, and level-  
triggered external enable/disable.  
Parallel master/slave operation with active current sharing.  
Remote sensing to compensate for voltage drop in load leads.  
Analog output programming and monitoring.  
System Features  
Built-in GBIB/LAN/USB interface.  
A built-in Web server that lets you control the instrument  
directly from an internet browser on your computer.  
Zero-gap stacking - no ventilation holes at the top and bottom  
surface of the power supply.  
Universal input voltage with active power factor correction.  
Fan speed control for low noise and extended fan life.  
8
Series N5700 User’s Guide  
The Agilent N5700 DC Power Supplies – At a Glance  
Programmable Functions  
Output voltage and current setting.  
Output voltage and current measurement.  
Output voltage and current trigger setting.  
Output On/Off control.  
Over-current protection setting.  
Over-voltage protection setting and readback.  
Under-voltage limit setting and readback.  
Start-up mode (either last setting or reset mode)  
Status register setting and readback.  
Bus trigger  
Calibration  
Model Ratings  
Model  
Voltage  
Range  
Current  
Range  
Model  
Voltage  
Range  
Current  
Range  
N5741A  
N5742A  
N5743A  
N5744A  
N5745A  
N5746A  
N5747A  
N5748A  
N5749A  
N5750A  
N5751A  
N5752A  
0 – 6V  
0 – 100A  
0 – 90A  
0 – 60A  
0 – 38A  
0 – 25A  
0 – 19A  
0 – 12.5A  
0 – 9.5A  
0 – 7.5A  
0 – 5A  
N5761A  
N5762A  
N5763A  
N5764A  
N5765A  
N5766A  
N5767A  
N5768A  
N5769A  
N5770A  
N5771A  
N5772A  
0 – 6V  
0 – 180A  
0 – 165A  
0 – 120A  
0 – 76A  
0 – 50A  
0 – 38A  
0 – 25A  
0 – 19A  
0 – 15A  
0 – 10A  
0 – 5A  
0 – 8V  
0 – 8V  
0 – 12.5V  
0 – 20V  
0 – 30V  
0 – 40V  
0 – 60V  
0 – 80V  
0 – 100V  
0 – 150V  
0 – 300V  
0 – 600V  
0 – 12.5V  
0 – 20V  
0 – 30V  
0 – 40V  
0 – 60V  
0 – 80V  
0 – 100V  
0 – 150V  
0 – 300V  
0 – 600V  
0 – 2.5A  
0 – 1.3A  
0 – 2.5A  
Series N5700 User’s Guide  
9
The Front Panel - At a Glance  
The Front Panel - At a Glance  
3
6
2
4
5
1
DC VOLTS  
DC AMPS  
VOLTAGE  
CV  
CURRENT  
CC  
OVP  
UVL  
LIMIT/  
OCP  
REM OUT ON  
PROT  
FINE  
POWER  
19  
16  
15  
14  
11  
7
13  
9
18  
8
17  
10  
12  
1 – VOLTAGE knob  
Voltage function: Adjusts the output voltage, the over-voltage protection level,  
and the under-voltage limit. If over-voltage protection or under-voltage limits have  
been set, you cannot program the output voltage outside those limits.  
GPIB address: Selects the GPIB address when REM is pressed and held.  
2 – CV indicator  
When lit, indicates that the unit is operating in constant voltage mode – with the  
output voltage being held constant.  
3 – DC VOLTS display  
LED display that normally displays the voltage measured at the sense terminals.  
When LIMIT is pressed, the display indicates the programmed voltage setting.  
When OVP/UVL is pressed, the display indicates either the OVP or UVL setting.  
When REM is pressed and held, the display indicates the GPIB address.  
4 – DC AMPS display  
5 – CC indicator  
LED display that normally displays the current measured at the output terminals.  
When LIMIT is pressed, the display indicates the programmed current setting.  
When lit, indicates that the unit is operating in constant current mode – with the  
output current being held constant.  
6 – CURRENT knob  
7 – OUT ON button  
Adjusts the output current.  
Output function: Press OUT ON to turn the output on or off. Press OUT ON to  
reset and turn the output on after an OVP or OCP event has occurred.  
Start-up function: Selects between Safe-Start and Auto-Restart modes. Press and  
hold the OUT ON button to toggle between Safe-Start and Auto-Restart. The  
display cycles between SAF and AU7. Releasing the OUT ON button while one of  
the modes is displayed selects that mode.  
8 – OUT ON indicator  
When lit, indicates that the output is enabled or on.  
10  
Series N5700 User’s Guide  
The Front Panel - At a Glance  
9 – REM button  
Mode function: Press REM to put the unit into local mode. (This button can be  
disabled with a Local Lockout command).  
Address function: Selects the GPIB address. Press and hold the REM button for  
three seconds to set the address with the Voltage knob.  
10 – REM indicator  
11 – OCP button  
When lit, indicates that the unit is in Remote mode.  
Enable function: Press OCP to turn over-current protection on. Press OCP again to  
turn over-current protection off.  
Reset OCP: When an over-current protection event occurs, press the OUT ON  
button to enable the output and re-arm over-current protection.  
12 – OCP indicator  
When lit, indicates that over-current protection is enabled or on.  
13 – OVP/UVL button  
OVP function: Press OVP/UVL once to set the over-voltage protection level with  
the Voltage knob (the display shows OUP). You cannot set the over-voltage  
protection lower than about 5% above the present output voltage setting.  
UVL function: Press OVP/UVL twice to set the under-voltage programming limit  
with the Voltage knob (the display shows UUL). You cannot set the under-voltage  
protection higher than about 5% below the present output voltage setting.  
14 – LIMIT button  
Limit function: Press LIMIT to display the output voltage and current limit. For five  
seconds the display shows the settings and then it returns to show the actual  
output voltage and current.  
Lock function: Press and hold the LIMIT button to toggle between Locked front  
panel and Unlocked front panel. The display will cycle between LFP and UFP.  
Releasing the LIMIT button while one of the modes is displayed selects that  
mode.  
15 – LIMIT indicator  
16 – FINE button  
When lit, indicates that the LIMIT button is pressed.  
Selects Fine or Coarse adjustment control. In Fine mode, the Voltage and Current  
knobs operate with high resolution; in Coarse mode, with lower resolution  
(approximately six turns).  
17 – FINE indicator  
18 – PROT indicator  
When lit, indicates that the unit is in Fine adjustment mode.  
When blinking, indicates that a fault has occurred.  
OVP, OCP, OTP, Enable fail, and AC fail detection will cause the PROT indicator to  
blink. The PROT indicator may blink and the display indicate AC for a few seconds  
after the unit is turned off because of residual energy inside the unit.  
19 – POWER switch  
Turns the power supply on or off.  
Series N5700 User’s Guide  
11  
The Rear Panel – At a Glance  
The Rear Panel – At a Glance  
8
9
10/100 Ethernet  
!
!
LINK  
TX  
+V  
-V  
GPIB  
J1  
SW1  
ON  
J2  
OFF  
ANALOG PROGRAMMING  
1 2 3 4 5 6 7 8 9  
+S+LS NC -LC-S  
NOT ACTIVE  
AC INPUT  
80V - 600V  
750W  
2
1
7
6
3
5
4
6V - 60V  
1500W  
1 – AC input connector  
2 – DC output connector  
Wire clamp connector for 1500W output models.  
IEC connector for 750W output models.  
Wire clamp connector for 80V to 600V models.  
Bus bars for 6V to 60V models.  
3 – USB connector  
4 – LAN connector  
Connector for connecting to a USB interface. See chapter 4 for setup.  
Connector for connecting to a LAN interface. LINK LED indicates link integrity.  
TX LED indicates LAN activity. See chapter 4 for LAN setup.  
5 – Analog Programming  
connector  
Connector for the analog interface. Includes output voltage and current limit  
programming and monitoring signals, Shut-Off control (electrical signal),  
Enable/Disable control (dry-contact), power supply ok (Power Supply OK) signal  
and operation mode (CV/CC) signal. (See next page for details)  
6 – SW1 setup switch  
Nine-position switch for selecting remote programming and monitoring modes  
for Output Voltage, Current Limit and other control functions. (See next page for  
details)  
7 – Remote Sense connector Connector for making remote sensing connections for regulating the load  
voltage and compensating for wiring voltage drop. (See next page for details)  
8 – GPIB connector  
9 – Ground screw  
Connector for connecting to a GPIB interface. See chapter 4 for setup.  
M4x8 screws for making chassis ground connections  
SHOCK HAZARD The power cord provides a chassis ground through a third  
conductor. Be certain that your power outlet is of the three-conductor type  
with the correct pin connected to earth ground  
WARNING  
12  
Series N5700 User’s Guide  
The Rear Panel – At a Glance  
J2 Sense Connector  
1 – Remote sense (+)  
2 – Local sense (+)  
3 – Not used  
4 – Local sense (–)  
5 – Remote sense (–)  
The factory-shipped configuration is shown in the figure.  
SW1 Setup Switch  
9
8
7
6
5
4
3
2
1
The factory-shipped setting is Down for all switches.  
1 – Output voltage, voltage  
programming  
Down: The output voltage is programmed by the front panel.  
Up:  
The output voltage is programmed by the external voltage signal.  
2 – Output current, voltage  
programming  
Down: The output current is programmed by the front panel.  
Up: The output current is programmed by the external voltage signal.  
3 – Programming range  
(voltage/resistance)  
Down: The remote programming range is: 0 – 5V / 0 – 5K.  
Up: The remote programming range is: 0 – 10V / 0 – 10K.  
4 – Voltage and Current  
monitoring range  
Down: The remote monitoring range is: 0 – 5V.  
Up: The remote programming range is: 0 – 10V.  
5 – Shut-Off Logic Select  
Down: OUT OFF = Low (0 – 0.6V) or short; OUT ON = High (2V – 15V) or open.  
Up: OUT OFF = High (2V – 15V) or open; OUT ON = Low (0 – 0.6V) or short.  
6 – Not Used  
7 – Output voltage, resistive Down: The output voltage is programmed by the front panel.  
programming Up: The output voltage is programmed by the external resistor.  
8 – Output current, resistive Down: The output current is programmed by the front panel.  
programming  
Up:  
The output current is programmed by the external resistor.  
9 – Enable/Disable control  
Down: The J1 Enable+/Enable– pins are not active.  
Up: The J1 Enable+/Enable– pins are active.  
Series N5700 User’s Guide  
13  
The Rear Panel – At a Glance  
J1 Analog Programming Connector  
Current Program  
Voltage Program  
Local / Analog  
Voltage Monitor  
Common (-S)  
CV / CC  
Chassis Common  
Chassis Common  
Enable +  
13  
25  
12  
24  
11  
23  
10  
22  
9
8
7
6
5
4
3
2
1
21  
20  
19  
18  
17  
16  
15  
14  
Parallel  
Enable --  
Current Monitor  
Current Prog. Return  
Voltage Prog. Return  
Local / Analog State  
Shut Off  
Power Supply OK  
The factory-shipped default configuration is Local operation, which  
does not require connection to J1.  
Pin 1:  
Enable +  
Connect Pin 1 to Pin 14 to enable the output. Disconnect to disable the output.  
Signal return for Pin 15 and Pin 16. Connected to chassis.  
No connection  
Pin 2, 3:  
Pin 4–7:  
Pin 8:  
Chassis Common  
Not Used  
Local/Analog  
Voltage Program  
Current Program  
Voltage Monitor  
Common  
Input for selecting between front panel or analog programming of the output.  
Input for voltage or resistance programming of the output voltage.  
Input for voltage or resistance programming of the output current.  
Output for monitoring the output voltage.  
Pin 9:  
Pin 10:  
Pin 11:  
Pin 12:  
Pin 13:  
Pin 14:  
Pin 15:  
Pin 16:  
Signal return for Pin 8, Pin11, Pin 13, and Pin 24. Connected internally to –S.  
Output for constant voltage/constant current mode indication.  
Connect Pin 14 to Pin 1 to enable the output. Disconnect to disable the output.  
Input for Shut-Off control of the output. Referenced to Chassis Common.  
Output to indicate the power supply status. Referenced to Chassis Common.  
No connection  
CV/CC  
Enable –  
Shut Off  
Power Supply OK  
Pin 17–20: Not Used  
Pin 21:  
Pin 22:  
Pin 23:  
Pin 24:  
Pin 25:  
Local/Analog State  
Output for indication of local or analog programming mode.  
Signal return for Pin 9. Connected internally to –S.  
Voltage Prog. Return  
Current Prog. Return  
Current Monitor  
Parallel  
Signal return for Pin 10. Connected internally to –S.  
Output for monitoring the output current.  
Output for current balancing in parallel operation.  
14  
Series N5700 User’s Guide  
SCPI Programming Commands – At a Glance.  
SCPI Programming Commands – At a Glance.  
Some [optional] commands have been included for clarity. Chapter 6 contains a  
complete description of all programming commands.  
NOTE  
Subsystem Commands.  
SCPI Command  
Description  
ABORt  
Aborts the triggered action  
CALibrate  
:CURRent[:LEVel]  
:DATA <NRf>  
:DATE “<date>”  
:LEVel P1 | P2  
:PASSword <NRf>  
:STATE <Bool> [,<NRf>]  
:VOLTage[:LEVel]  
Calibrates the output current programming  
Enters the calibration value  
Sets the calibration date  
Advances to the next calibration step  
Sets the numeric calibration password  
Enables/disables calibration mode  
Calibrates the output voltage programming  
INITiate  
[:IMMediate][:TRANsient]  
Initiates the trigger system  
:CONTinuous[:TRANsient]  
Enables/disables continuous triggers  
MEASure  
[:SCALar]  
:CURRent[:DC]?  
:VOLTage[:DC]?  
Returns the measured output current  
Returns the measured output voltage  
OUTPut  
[:STATe] <Bool>  
:PON  
:STATe RST | AUTO  
:PROTection  
:CLEar  
Enables/disables the specified output  
Programs the Power-On State  
Resets latched protection  
[SOURce:]  
CURRent  
[:LEVel]  
[:IMMediate][:AMPLitude] <NRf+>  
:TRIGgered[:AMPLitude] <NRf+>  
:PROTection  
:STATe <Bool>  
VOLTage  
[:LEVel]  
Sets the output current  
Sets the triggered output current  
Enables/disables over-current protection  
[:IMMediate][:AMPLitude] <NRf+>  
:TRIGgered[:AMPLitude] <NRf+>  
Sets the output voltage  
Sets the triggered output voltage  
:LIMit  
:LOW <NRf+>  
:PROTection  
Sets the low-voltage limit  
[:LEVel] <NRf+>  
Sets the over-voltage protection level  
Series N5700 User’s Guide  
15  
SCPI Programming Commands – At a Glance.  
SCPI Command  
Description  
STATus  
:OPERation  
[:EVENt]?  
:CONDition?  
:ENABle <NRf>  
:NTRansition<NRf>  
:PTRansition<NRf>  
:PRESet  
Returns the value of the operation event register  
Returns the value of the operation condition register  
Enables specific bits in the Event register  
Sets the Negative transition filter  
Sets the Positive transition filter  
Presets all enable and transition registers to power-on  
:QUEStionable  
[:EVENt]?  
Returns the value of the questionable event register  
Returns the value of the questionable condition register  
Enables specific bits in the Event register  
Sets the Negative transition filter  
:CONDition?  
:ENABle <NRf>  
:NTRansition<NRf>  
:PTRansition<NRf>  
Sets the Positive transition filter  
SYSTem  
:COMMunicate  
:RLSTate LOCal | REMote | RWLock  
:ERRor?  
Specifies the Remote/Local state of the instrument  
Returns the error number and error string  
Returns the SCPI version number  
:VERSion?  
TRIGger  
:SOURce BUS  
[:TRANsient][:IMMediate]  
Sets the measurement trigger source  
Generates a transient trigger  
Common Commands  
Command  
Description  
*CLS  
Clear status  
*ESE <NRf>  
*ESE?  
*ESR?  
*IDN?  
*OPC  
*OPC?  
*OPT?  
Standard event status enable  
Return standard event status enable  
Return event status register  
Return instrument identification  
Enable "operation complete" bit in ESR  
Return a "1" when operation complete  
Return option number  
*RCL <NRf>  
*RST  
*SAV <NRf>  
*SRE <NRf>  
*SRE?  
Recalls a saved instrument state  
Reset  
Saves an instrument state  
Set service request enable register  
Return service request enable register  
Return status byte  
*STB?  
*TRG  
*TST  
*WAI  
Trigger  
Performs self-test, then returns result  
Holds off bus until all device commands done  
16  
Series N5700 User’s Guide  
2
Installation  
General Information 18  
Inspecting the Unit 19  
Installing the Unit 19  
Connecting the Line Cord 21  
Connecting the Load23  
Output Voltage Sensing 26  
Load Considerations 28  
Parallel Connections30  
Series Connections 32  
J1 Connector Connections 34  
This chapter describes how to install your power supply. It discusses  
installation, rack mounting, and line cord connections.  
This chapter also discusses how to connect your load to the output  
terminals. It discusses what you need to know about wire sizes and  
how to compensate for voltage drops in the load leads. It also  
discusses various loads configurations and how to connect units in  
series and parallel.  
Before getting started, check the list under “Items Supplied” and  
verify that you have received these items with your instrument. If  
anything is missing, please contact your nearest Agilent Sales and  
Service Office.  
Series N5700 User’s Guide  
17  
General Information  
General Information  
Models  
750 W Models  
1500 W Models  
N5741A – N5749A  
N5750A – N5752A  
N5761A – N5769A  
N5770A – N5772A  
Options  
Option  
Description  
Description  
Accessories  
Item  
N5740A  
Rack-mount Slide Kit for installing in system II style cabinets  
Items Supplied  
Item  
Description  
Power Cord  
A power cord appropriate for your location.  
750W units are supplied with terminated power cords  
1500W units are supplied with unterminated power cords  
Sense Connector  
Analog connector  
A 5-pin connector for local/remote sense connections  
A DB25 subminiature connector plug for analog control  
connections  
Shield assembly  
A safety shield for the output terminal connections  
Strain relief assembly  
A strain relief assembly for unterminated power cords  
(only provided for 1500W units)  
Documentation Set  
Contains User’s Guide and CD-ROM  
CD-ROM contains Agilent I/O library, Setup utility,  
GPIB/LAN/USB Interfaces Connectivity Guide, User’s Guide  
18  
Series N5700 User’s Guide  
Inspecting the Unit  
Inspecting the Unit  
Installing the Unit  
When you receive your power supply, inspect it for any obvious  
damage that may have occurred during shipment. If there is damage,  
notify the shipping carrier and nearest Agilent Sales and Service  
Office immediately. Refer to Appendix C for more information.  
Until you have checked out the power supply, save the shipping  
carton and packing materials in case the unit has to be returned.  
Safety Considerations  
This power supply is a Safety Class 1 instrument, which means it has  
a protective earth terminal. That terminal must be connected to  
earth ground through power source equipped with a ground  
receptacle. Refer to the Safety Summary page at the beginning of this  
guide for general safety information. Before installation or  
operation, check the power supply and review this guide for safety  
warnings and instructions. Safety warnings for specific procedures  
are located at appropriate places throughout this Guide.  
Environment  
Do not operate the instrument in the presence of flammable gasses or fumes  
WARNING  
The environmental conditions, dimensions of the instrument, as well  
as an outline diagram are given in Appendix A. Basically, the  
instrument should only be operated indoors in a controlled  
environment. Do not operate the power supply in an area where the  
ambient temperature exceeds 40° C.  
Agilent N5700 power supplies generate magnetic fields, which may affect the  
operation of other instruments. If your equipment is susceptible to magnetic  
fields, do not position it adjacent to the power supply.  
NOTE  
Airflow  
Fans cool the power supply by drawing air through the front and  
exhausting it out the back. The instrument must be installed in a  
location that allows sufficient space of at least 10 cm (4 in) at the  
front and back of the unit for adequate air circulation.  
Series N5700 User’s Guide  
19  
Installing the Unit  
Rack Installation  
Ensure that the screws used to attach the rack slide kit do not penetrate more  
than 6 mm into the sides of the unit.  
CAUTION  
Do not block the air intake at the front of the unit or the exhaust at the rear of  
the unit.  
The Agilent N5700 power supplies can be mounted in a standard 19-  
inch rack panel or cabinet. To install the power supply in a rack:  
1. Use the front panel rack-mount brackets to install the power  
supply in the rack.  
2. Use a support bracket to provide adequate support for the rear of  
the power supply.  
3. If using rack mount slides, use Agilent N5740A Rack-mount Slide  
Kit to install the unit in a standard 19-inch equipment rack. Refer to  
the following figure for assembly instructions. Use three #10-32 x  
0.38 in (max.) screws at each side. To prevent internal damage, use  
the specified screw length only.  
Cleaning  
SHOCK HAZARD To prevent electric shock, unplug the unit before cleaning.  
WARNING  
Use a dry cloth or one slightly dampened with water to clean the  
external case parts. Do not attempt to clean internally.  
20  
Series N5700 User’s Guide  
Connecting the Line Cord  
Connecting the Line Cord  
SHOCK HAZARD The power cord provides a chassis ground through a third  
conductor. Be certain that your power outlet is of the three-conductor type  
with the correct pin connected to earth ground.  
WARNING  
FIRE HAZARD Use only the power cord that was supplied with your  
instrument. Using other types of power cords may cause overheating of the  
power cord, resulting in fire.  
The detachable power cord may be used as an emergency disconnecting  
device. Removing the power cord will disconnect ac input power to the unit.  
NOTE  
The AC input on the back of your unit is a universal AC input. It  
accepts line voltages in the range of 85 VAC to 265 VAC. The  
frequency range is 47 Hz to 63 Hz.  
The input current requirement of 750W units is 10.5A @ 100 VAC  
nominal and 5A @ 200 VAC nominal. The current requirement of  
1500W units is 21A @ 100 VAC nominal and 11A @ 200 VAC nominal.  
Input Connections for 750W units  
Connect the power cord to the IEC 320 connector on the rear of the  
unit. The IEC connector provides the safety ground connection when  
the AC cord is plugged into a grounded AC receptacle.  
If the wrong power cord was shipped with your unit, contact your  
nearest Agilent Sales and Service Office.  
Input Connections for 1500W units  
Connection of this power supply to an AC power source should be made by a  
qualified electrician or other qualified personnel.  
CAUTION  
The AC input connector is a 3-terminal wire clamp located on the  
rear panel. Use suitable wires and tightening torque as follows:  
Wire diameter: 12 AWG or 10 AWG  
Tightening torque: 6.5 - 7.0 in-lb  
Connect the cable to the AC input connector as follows:  
Strip the outside insulation of the AC cable approximately 10  
cm (4 in). Trim the wires so that the ground wire is 10 mm  
(0.4 in) longer than the other wires. Strip 14 mm (0.55 in) at  
the end of each of the wires.  
Series N5700 User’s Guide  
21  
Connecting the Line Cord  
Unscrew the base of the strain relief from the helix-shaped  
body. Insert the base through the outside opening in the AC  
input cover and screw the locknut securely (11-14 in-lb) into  
the base, from the inside.  
Slide the helix-shaped body onto the AC cable. Insert the  
stripped wires through the strain relief base until the outer  
cable jacket is flush with the edge of the base. Tighten the  
body (16-18 in-lb) to the base while holding the cable in  
place. Now the cable is securely fastened inside the strain  
relief. Refer to the following figure.  
Screw-on  
Locknut  
Route the AC wires to the input connector terminals as  
required. To connect the wires, loosen the terminal screw,  
insert the stripped wire into the terminal, and tighten the  
screw securely to between 4.4–5.3 in-lb.  
Route the wires inside the cover to prevent pinching. Fasten  
the cover to the unit using the M3 x 8 flat head screws  
provided. Refer to the following figure for details.  
N
L
M3x8  
Flat Head Screws  
(2 places)  
Cover  
Assembled  
Strain Relief  
22  
Series N5700 User’s Guide  
Connecting the Load  
Connecting the Load  
SHOCK HAZARD Turn off AC power before making rear panel connections.  
All wires and straps must be properly connected with screws securely  
tightened.  
WARNING  
As further explained in this section, the following factors should be  
considered when selecting wiring to connect the load to the power  
supply:  
Current carrying capacity of the wire  
Insulation rating of the wire should be at least equivalent to  
the maximum output voltage of the power supply  
Maximum wire length and voltage drop  
Noise and impedance effects of the load wiring  
Wire Size  
FIRE HAZARD To satisfy safety requirements, select a wire size heavy  
enough not to overheat while carrying the power supply load current at the  
rated load, or the current that would flow in the event the load wires were  
shorted, whichever is greater.  
WARNING  
Along with conductor temperature, you must also consider voltage  
drop when selecting wire sizes. The following chart lists the  
resistance for various wire sizes and also the maximum lengths to  
limit the voltage drop to 1.0 volt for various currents.  
Although the power supply will compensate for up to 5V in each load  
wire, it is recommended to minimize the voltage drop to less than 1V  
to prevent excessive output power consumption from the power  
supply and poor dynamic response to load changes.  
Wire size Resistance  
Maximum length in feet to limit voltage to 1 V  
AWG  
/1000 foot  
for 5 A  
for 10 A for 20A  
for 50A for 150A  
14  
12  
10  
8
6
4
2.526  
1.589  
80  
40  
60  
20  
30  
50  
80  
125  
200  
300  
500  
8
2
3.4  
6
10  
16  
26  
40  
68  
120  
200  
320  
500  
800  
1200  
2000  
12  
20  
32  
50  
80  
125  
200  
0.9994  
0.6285  
0.3953  
0.2486  
0.1564  
0.0983  
100  
160  
250  
400  
600  
1000  
2
0
Series N5700 User’s Guide  
23  
Connecting the Load  
Cross  
section  
(mm2)  
Resistance  
/kilometer  
Maximum length in meters to limit voltage to 1 V  
for 5 A for 10 A  
for 20A  
for 50A for 150A  
2.5  
4
6
10  
16  
25  
35  
8.21  
5.09  
3.39  
1.95  
1.24  
0.795  
0.565  
24.0  
39.2  
59.0  
102  
160  
250  
354  
12.0  
18.6  
29.4  
51.2  
80.0  
125  
6.0  
9.8  
2.4  
4.0  
5.8  
10.2  
16.0  
25.2  
35.4  
0.8  
1.4  
2.0  
3.4  
5.4  
8.4  
11.8  
14.8  
25.6  
40.0  
62.0  
88.0  
177  
Load Connections for 6V to 60V Models  
SHOCK HAZARD Hazardous voltages may exist at the outputs and the load  
connections when using a power supply with a rated output greater than 40V.  
To protect personnel against accidental contact with hazardous voltages,  
ensure that the load and its connections have no accessible live parts. Ensure  
that the load wiring insulation rating is greater than or equal to the maximum  
output voltage of the power supply.  
WARNING  
Ensure that the load wiring mounting hardware does not short the output  
terminals. Heavy connecting cables must have some form of strain relief to  
prevent loosening the connections or bending the bus-bars.  
CAUTION  
All load wires should be properly terminated with wire terminals  
securely attached. Do not use unterminated wires for load  
connections at the power supply. The following figures illustrate how  
to connect the load wires to the power supply bus-bars as well as  
how to mount the bus-bar shield to the chassis.  
Wire terminal lug (2 places)  
M8x15 screw (2 places)  
Flat washer  
(2 places)  
Flat washer (2 places)  
Spring washer (2 places)  
Hex Nut (2 places)  
Screws tightening torque: 104-118 in-lb.  
24  
Series N5700 User’s Guide  
Connecting the Load  
Install the shield after you have finished connecting the load wires.  
Shield  
Load Connections for 80V to 600V Models  
SHOCK HAZARD Hazardous voltages may exist at the outputs and the load  
connections when using a power supply with a rated output greater than 40V.  
To protect personnel against accidental contact with hazardous voltages,  
ensure that the load and its connections have no accessible live parts. Ensure  
that the load wiring insulation rating is greater than or equal to the maximum  
output voltage of the power supply.  
WARNING  
The 80V to 600V models have a four-terminal wire clamp output  
connector. The two left terminals are the positive outputs and the  
two right terminals are the negative outputs. The connector  
specifications are as follows:  
Wire Size:  
Stripping Length: 10 mm (0.39 in.)  
Torque: 6.5 - 7 in-lb.  
AWG 18 to AWG 10  
The following instructions describe how to connect the load wires to  
the power supply:  
Strip wires back approximately 10 mm (0.39 in).  
Loosen the connector terminal screws and insert the stripped  
wires into the terminal. Tighten the terminal screw securely.  
-V  
+V  
Positive Output (+)  
Negative (-)  
Output/Return  
Load wires  
Series N5700 User’s Guide  
25  
Output Voltage Sensing  
Loosen the two chassis screws marked A halfway.  
Assemble the protective shield to the chassis and tighten the  
two screws to fix the shield to the chassis. Screws tightening  
torque: 4.8-5.3 in-lb  
A
A
Tighten the wires to one of the shield sides using tie-wrap or  
equivalent. Refer to the following figure.  
Load  
wires  
Ensure that the wire length inside the shield is long enough  
to provide proper strain relief.  
Output Voltage Sensing  
SHOCK HAZARD There is a potential shock hazard at the sense connector  
when using a power supply with a rated output greater than 40V. Ensure that  
the local sense and remote sense wiring insulation rating is greater than or  
equal to the maximum output voltage of the power supply. Ensure that the  
connections at the load end are shielded to prevent accidental contact with  
hazardous voltages.  
WARNING  
Local and remote sense connections are made at the J2 connector.  
The connector has a removable plug that makes it easy for you to  
make your wire connections. Refer to the following figure for the  
terminal assignments.  
1 Remote sense (+)  
2 Local sense (+)  
3 Not connected  
4 Local sense (-)  
5 Remote sense (-)  
26  
Series N5700 User’s Guide  
Output Voltage Sensing  
The J2 connector plug specifications are as follows:  
Plug Type:  
Wire Size:  
MC 1.5/5-ST-3.81, Phoenix  
AWG 28 to AWG 16  
Stripping Length: 7 mm (0.28 in.)  
Torque: 0.22 – 0.25 Nm (1.95 – 2.21 in-lb.)  
If the power supply is operated without the remote sense lines or local sense  
jumpers, it will continue to work, but the output voltage regulation will be  
degraded. Also, the OVP circuit may activate and shut down the power supply.  
NOTE  
Local Sensing  
The power supply is shipped with the rear panel J2 sense connector  
wired for local sensing of the output voltage. With local sensing, the  
output voltage regulation is made at the output terminals. This  
method does not compensate for voltage drop on the load wires,  
therefore it is recommended only for low load current applications or  
where the load regulation is less critical.  
+V  
-V  
+
Load  
Power  
Supply  
-Rem.sense  
Load lines, twisted  
pair, shortest length  
possible.  
-Local sense  
+Local sense  
+Rem.sense  
Remote Sensing  
Use remote sensing in applications where load regulation at the load  
is critical. Remote sensing allows the power supply to automatically  
compensate for the voltage drop in the load leads. Refer to Appendix  
A for the maximum allowable voltage drop on the load wires.  
Remote sensing is especially useful in constant voltage mode with  
load impedances that vary or have significant lead resistance. It has  
no effect in constant current mode. Because sensing is independent  
of other power supply functions it can be used regardless of how the  
power supply is programmed. With remote sensing, voltage readback  
monitors the load voltage at the remote sense points.  
Use twisted or shielded wires to minimize noise pick-up. If shielded  
wires are used, the shield should be connected to the ground at one  
point, either at the power supply chassis or the load ground. The  
optimal point for the shield ground should be determined by  
experimentation  
To configure the power supply for remote sensing:  
Series N5700 User’s Guide  
27  
Load Considerations  
Turn off the power supply.  
Remove the local sense jumpers from the J2 connector.  
Connect the negative sense lead to terminal 5 (-S) and the  
positive sense lead to terminal 1 (+S). Make sure that the  
connector plug is securely inserted into the connector body.  
Turn on the power supply.  
Load lines. Twisted pair  
shortest length possible.  
+V  
-V  
+
Load  
Power  
Supply  
-Rem.sense  
-Local sense  
+Local sense  
+Rem.sense  
Sense lines.  
Twisted pair or  
shielded wires.  
If the power supply is operating in remote sense and either the positive or  
negative load wire is not connected, an internal protection circuit will activate  
and shut down the power supply. To resume operation, turn the power supply  
off, connect the open load wire, and turn on the power supply.  
NOTE  
Load Considerations  
Multiple Loads  
The following figure shows multiple loads connected to one power  
supply. Each load should be connected to the power supply’s output  
terminals using separate pairs of wires. It is recommended that each  
pair of wires will be as short as possible and twisted or shielded to  
minimize noise pick-up and radiation. The sense wires should be  
connected to the power supply output terminals or to the load with  
the most critical load regulation requirement.  
Load lines, twisted pair,  
shortest length possible.  
+V  
+
Load#1  
Power  
Supply  
-V  
+
Load#2  
-Rem.sense  
-Local sense  
+Local sense  
+
Load#3  
+
Rem.sense  
28  
Series N5700 User’s Guide  
Load Considerations  
If remotely located distribution terminals are used, as shown in the  
following figure, the power supply output terminals should be  
connected to the remote distribution terminals by a pair of twisted  
and/or shielded wires. Connect each load to the distribution  
terminals separately. Remote voltage sensing is recommended under  
these circumstances. Sense either at the remote distribution  
terminals or, if one load is more sensitive than the others, directly at  
the critical load.  
Distribution terminal  
+V  
+
Load#1  
Load#2  
+V  
Power  
Supply  
-V  
+
+
-Rem.sense  
-Local sense  
+Local sense  
+Rem.sense  
-V  
Load#3  
Output Noise and Impedance Effects  
To minimize the noise pickup or radiation, the load wires and remote  
sense wires should be twisted-pairs to the shortest possible length.  
Shielding of sense leads may be necessary in high noise  
environments. Where shielding is used, connect the shield to the  
chassis via a rear panel ground screw. Even if noise is not a concern,  
the load and remote sense wires should be twisted-pairs to reduce  
coupling, which might impact the stability of power supply. The sense  
leads should be separated from the power leads.  
Twisting the load wires reduces the parasitic inductance of the cable,  
which could produce high frequency voltage spikes at the load and  
the output because of current variation in the load itself.  
The impedance introduced between the power supply output and the  
load could make the ripple and noise at the load worse than the noise  
at the power supply rear panel output. Additional filtering with  
bypass capacitors at the load terminals may be required to bypass the  
high frequency load current.  
Inductive Loads  
Inductive loads can produce voltage spikes that may be harmful to  
the power supply. A diode should be connected across the output.  
The diode voltage and current rating should be greater than the  
power supply maximum output voltage and current rating. Connect  
the cathode to the positive output and the anode to the negative  
output of the power supply.  
Where positive load transients such as back EMF from a motor may  
occur, connect a surge suppressor across the output to protect the  
power supply. The breakdown voltage rating of the suppressor must  
be approximately 10% higher than the maximum output voltage of the  
power supply.  
Series N5700 User’s Guide  
29  
Parallel Connections  
Grounding the Output  
The output of the power supply is isolated from earth ground. Either  
positive or negative voltages can be obtained from the output by  
grounding (or "commoning") one of the output terminals. Always use  
two wires to connect the load to the output regardless of where or  
how the system is grounded.  
To avoid noise problems caused by common-mode current flowing  
from the load to ground, it is recommended to ground the output  
terminal as close as possible to the power supply chassis ground.  
SHOCK HAZARD For models up to 60VDC rated output, no point shall be more  
than +/-60VDC above/below chassis ground. For models > 60VDC rated  
output, no point shall be more than +/-600VDC above/below chassis ground.  
WARNING  
There is also a potential shock hazard at the IEEE/LAN/USB ports when  
using power supplies with rated or combined voltages > 400VDC with the  
positive output of the power supplies grounded. Do not connect the positive  
output to ground when using the IEEE/LAN/USB under the above conditions.  
Parallel Connections  
Only power supplies that have equivalent voltage and current ratings can be  
connected in parallel.  
CAUTION  
Up to four units of the same voltage and current rating can be  
connected in parallel to provide up to four times the output current  
capability. Refer to the following figures for typical connections of  
parallel power supplies using either local or remote sensing. The  
figures show two units, however, the same connection method  
applies for up to four units.  
-S -LS +LS +S  
As short as possible  
+V  
MASTER  
Twisted  
pair  
POWER SUPPLY  
-V  
J1-25  
Parallel  
LOAD  
Current Program  
J1-10  
J1-12  
J1-8  
+V  
SLAVE  
POWER SUPPLY  
-V  
-S -LS +LS +S  
Local Sensing  
30  
Series N5700 User’s Guide  
Parallel Connections  
+S  
-S  
Twisted  
pair  
-S  
+S  
As short as possible  
+V  
-V  
+S  
MASTER  
Twisted  
pair  
POWER SUPPLY  
J1-25  
Parallel  
LOAD  
Current Program  
J1-10  
J1-12  
J1-8  
+V  
SLAVE  
POWER SUPPLY  
-S  
-V  
Twisted  
pair  
-S  
+S  
-S  
+S  
Remote Sensing  
One of the units operates as a master and the remaining units are  
slaves. The slave units operate as controlled current sources  
following the master output current. In remote operation, only the  
master unit can be programmed by the computer while the slave  
units may be connected to the computer for voltage, current and  
status readback only.  
It is recommended that each unit supplies only up to 95% of its  
current rating because of the imbalance that may be caused by  
cabling and connections voltage drops.  
Setting up the Master Unit  
Connect the sensing circuit for either local or remote sensing as  
shown in the previous figures. Set the master unit output voltage to  
the desired voltage. Program the current limit to the desired load  
current limit divided by the number of parallel units. During  
operation, the master unit operates in constant voltage mode,  
regulating the load voltage at the programmed output voltage.  
Setting up the Slave Units  
Set the rear panel setup switch SW1 position 2 to it’s up position.  
Connect J1 pin 10 (Current Program) of the slave unit to J1 pin 25  
(Parallel) of the master unit. The output voltage of the slave units  
should be programmed higher than the output voltage of the master  
unit to prevent interference with the master unit’s control. The  
current limit of each unit should be programmed to the desired load  
current limit divided by the number of parallel units.  
Series N5700 User’s Guide  
31  
Series Connections  
Setting the Over-Voltage Protection  
The master unit OVP should be programmed to the desired OVP level.  
The OVP of the slave units should be programmed to a higher value  
than the master. When the master unit shuts down, it programs the  
slave unit to zero output voltage. If a slave unit shuts down when its  
OVP is set lower than the master output voltage, only that unit shuts  
down and the remaining slave units will supply all the load current.  
Setting the Over-Current Protection  
Over-current protection, if desired, may only be used with the master  
unit. When the master unit shuts down it programs the slave units to  
zero output voltage.  
Series Connections  
SHOCK HAZARD For models up to 60VDC rated output, no point shall be more  
than +/-60VDC above/below chassis ground. For models > 60VDC rated  
output, no point shall be more than +/-600VDC above/below chassis ground.  
WARNING  
There is also a potential shock hazard at the IEEE/LAN/USB ports when  
using power supplies with rated or combined voltages > 400VDC with the  
positive output of the power supplies grounded. Do not connect the positive  
output to ground when using the IEEE/LAN/USB under the above conditions.  
Only power supplies that have equivalent voltage and current ratings can be  
connected in series.  
CAUTION  
Two units of the same voltage and current rating can be connected in  
series to provide up to two times the output voltage capability.  
Because the current is the same through each element in a series  
circuit, outputs connected in series must have equivalent current  
ratings. Otherwise, the higher rated output could potentially damage  
the lower rated output by forcing excessive current through it under  
certain load conditions. Refer to the following figures for typical  
series connections using either local or remote sensing.  
It is recommended that diodes be connected in parallel with each  
output to prevent reverse voltage during start up sequence or in case  
one unit shuts down. Each diode should be rated to at least the rated  
output voltage and output current of the power supply.  
32  
Series N5700 User’s Guide  
Series Connections  
+S  
+LS  
+S  
+LS  
+
POWER  
SUPPLY  
POWER  
SUPPLY  
+
(*)  
(*)  
-
-
-S  
-LS  
-S  
-LS  
+
+
LOAD  
-
LOAD  
-
+S  
+LS  
+S  
+LS  
POWER  
SUPPLY  
+
(*) Diodes are  
user supplied.  
POWER  
SUPPLY  
+
(*)  
(*)  
-
-
-S  
-LS  
-S  
-LS  
Remote Sensing  
Local Sensing  
Refer to the following figure for typical connections of series power  
supplies configured as a positive and a negative output.  
+S  
+LS  
POWER  
SUPPLY  
+
(*)  
-
-LS -S  
+
-
+S  
+LS  
+
POWER  
SUPPLY  
(*)  
(*) Diodes are user supplied.  
-
-LS -S  
This caution applies when using analog voltage programming with series-  
connected power supplies. The analog programming circuits of these power  
supplies are referenced to the negative sense (-S) potential. Therefore, the  
analog voltage circuits used to control each series-connected unit must be  
separated and floated from each other.  
CAUTION  
Series N5700 User’s Guide  
33  
J1 Connector Connections  
J1 Connector Connections  
WARNING  
SHOCK HAZARD There is a potential shock hazard at the J1 connector when  
using a power supply with a rated output greater than 40V. Ensure that the  
load wiring insulation rating is greater than or equal to the maximum output  
voltage of the power supply.  
External programming and monitoring signal are located on the J1  
connector. The power supply is shipped with a mating plug that  
makes it easy for you to make your wire connections. It is essential to  
use this plastic-body plug to conform to safety agency requirements.  
If a shield is required for the J1 wires, connect the shield to the  
ground screw located on the power supply chassis.  
Refer to the following figure for the pin assignments. A description of  
the pins is given in chapter 1.  
Current Program  
Voltage Program  
Local / Analog  
Voltage Monitor  
Common (-S)  
CV / CC  
Chassis Common  
Chassis Common  
Enable +  
13  
25  
12  
24  
11  
23  
10  
22  
9
8
7
6
5
4
3
2
1
21  
20  
19  
18  
17  
16  
15  
14  
Parallel  
Current Monitor  
Enable --  
Shut Off  
Current Prog. Return  
Voltage Prog. Return  
Local / Analog State  
Power Supply OK  
Pins on this side are  
referenced to the negative  
sense (-S) terminal.  
Pins on this side are isolated  
from output terminals and are  
referenced to chassis ground.  
The mating plug specifications for the J1 connector are as follows:  
Mating Plug:  
Wire Size:  
AMP part number 745211-2  
AWG 26 to AWG 22  
Extraction tool:  
AMP part number 91232-1 or euivalent  
Manual pistol grip tool: Handle: AMP p/n 58074-1  
Head: AMP p/n 58063-1  
Pins 12, 22 and 23 of J1 are connected internally to the negative sense (-S)  
potential of the power supply. Do not attempt to bias any of these pins relative  
to the negative sense. Use an isolated, ungrounded, programming source to  
prevent ground loops and to maintain the isolation of the power supply when  
programming from J1.  
CAUTION  
Chapter 3 describes how to configure the J1 connector when using it  
to program the output voltage and current.  
34  
Series N5700 User’s Guide  
3
Operating the Power Supply Locally  
Turn-On Check-Out 36  
Normal Operation 38  
Protection Functions39  
Output On/Off Control 42  
Analog Programming of Output Voltage and Current 44  
This chapter contains examples on how to operate your power supply  
from the front panel. A check-out procedure is included to let you  
verify that the power supply is operating properly. Additionally,  
information about programming the power supply using the J1  
analog programming connector is also provided.  
The simple examples discussed in this chapter show you how to  
program:  
output voltage and current functions  
protection functions  
output on/off functions  
safe-start and auto-restart  
analog programming of voltage and current  
front panel locking  
Refer to chapters 4 and 5 for information on programming your  
power supply using SCPI commands.  
Series N5700 User’s Guide  
35  
Turn-On Check-Out  
Turn-On Check-Out  
Before Check-Out  
Ensure that the power supply is configured as follows:  
The unit is connected to an appropriate AC source as  
described in chapter 2.  
The POWER switch is in the off position.  
Sense connector pins 1 and 2 are jumpered; sense connector  
pins 4 and 5 are jumpered.  
All switches on Connector J2 are in the down position.  
SHOCK HAZARD Be aware that hazardous voltages can be present on the  
output terminals. Do not set the output voltage above 40 VDC during the turn-  
on check-out procedure.  
WARNING  
Constant Voltage Check  
Turn the POWER switch on.  
Turn the output on by pressing the OUT ON button. The  
green OUT ON indicator should be illuminated.  
The green CV indicator should also be illuminated. If the CC  
indicator is illuminated, rotate the current knob until the CV  
indicator becomes illuminated.  
Rotate the voltage knob while observing the DC VOLTS  
display. The output voltage should vary while the knob is  
turned. The voltage range is from zero to the maximum rated  
output for the power supply model.  
OVP Check  
Rotate the voltage knob and set the output voltage of the unit  
to 50% of its full-scale rating or 30 volts, whichever is lower.  
Press the OVP/UVL button once so that the DC AMPS display  
indicates OUP. The DC VOLTS display shows the OVP level.  
Use the voltage knob and set the OVP level of the unit to 75%  
of its full-scale voltage rating or 40 volts, whichever is lower.  
Wait a few seconds until the DC VOLTS display returns to  
show the output voltage.  
Use the voltage knob and raise the output voltage of the unit  
until it approaches the OVP setting. Check to make sure that  
the output voltage cannot be set higher than the OVP setting.  
Press the OVP/UVL button again. Rotate the voltage knob and  
reset the OVP level of the unit to its maximum setting.  
36  
Series N5700 User’s Guide  
Turn-On Check-Out  
UVL Check  
Press the OVP/UVL button twice so that the DC AMPS display  
indicates UUL. The DC VOLTS display shows the UVL level.  
Use the voltage knob and set the UVL level of the unit to 50%  
of its full-scale voltage rating or 30 volts, whichever is lower.  
Wait a few seconds until the DC VOLTS display returns to  
show the output voltage.  
Use the voltage knob and lower the output voltage of the unit  
until it approaches the UVL setting. Check to make sure that  
the output voltage cannot be set lower than the UVL setting.  
Press the OVP/UVL button twice. Rotate the voltage knob and  
reset the UVL level of the unit to its minimum setting.  
Constant Current Check  
Turn the POWER switch off. Wait a few seconds until the AC  
indicator on the front panel goes out.  
Use a heavy wire and short the +V and –V output terminals  
together.  
Turn the POWER switch on.  
Turn the output on by pressing the OUT ON button. The  
green OUT ON indicator should be illuminated. The green CC  
indicator should be also illuminated.  
Rotate the current knob while observing the DC AMPS  
display. The output current should vary while the knob is  
turned. The current range is from zero to the maximum rated  
output for the power supply model.  
OCP Check  
Rotate the current knob and set the current limit of the unit  
to about 10% of its full-scale current rating.  
Press the OCP button. This should trip the OCP protection.  
The OCP indicator should be illuminated, the DC VOLTS  
display should indicate OCP, and the Alarm indicator should  
be blinking.  
Press the OCP button again to cancel OCP protection. The DC  
VOLTS display should indicate OFF because the OCP  
protection is latched.  
Press the OUT ON button to reset the OCP protection. The  
output should return to its previous setting.  
Turn the POWER switch off.  
Remove the short from the +V and –V output terminals.  
Series N5700 User’s Guide  
37  
Normal Operation  
Normal Operation  
The power supply has two basic operating modes: constant voltage  
and constant current mode. In constant voltage mode, the power  
supply regulates the output voltage at the selected value, while the  
load current varies as required by the load. In constant current  
mode, the power supply regulates the output current at the selected  
value, while the voltage varies as required by the load. The mode in  
which the power supply operates at any given time depends on the  
voltage setting, current limit setting, and the load resistance.  
Constant Voltage Mode  
When the power supply is operating in constant voltage mode, the CV  
indicator on the front panel illuminates.  
Adjustment of the output voltage can be made when the output is  
enabled (On) or disabled (Off). When the output is enabled, simply  
rotate the voltage knob to program the output voltage.  
When the output is disabled, press the LIMIT button and then rotate  
the voltage knob. The DC VOLTS display will show the programmed  
voltage for 5 seconds after the adjustment has been completed and  
then indicate OFF.  
The voltage knob can be set to coarse or fine resolution. Press the  
FINE button to select finer resolution. The FINE indicator turns on.  
If you cannot adjust the voltage to the value that you desire, the power supply  
may be operating at its current limit. Check the load condition and the current  
limit setting. Also, the voltage cannot be programmed lower than about 5%  
above the UVL setting, or higher than about 5% below the OVP setting.  
NOTE  
Constant Current Mode  
When the power supply is operating in constant current mode, the  
CC indicator on the front panel illuminates.  
Adjustment of the output current limit can be made when the output  
is enabled (On) or disabled (Off). When the output is enabled and in  
constant current mode, simply rotate the current knob to program  
the current limit. If the output is in constant voltage mode, press the  
LIMIT button and then rotate the current knob. The DC AMPS display  
will show the programmed current for 5 seconds after the adjustment  
has been completed and then indicate the actual output current.  
When the output is disabled, press the LIMIT button and then rotate  
the current knob. The DC AMPS display will show the programmed  
current for 5 seconds after the adjustment has been completed and  
then go blank because the output is off.  
The current knob can be set to coarse or fine resolution. Press the  
FINE button to select finer resolution. The FINE indicator turns on.  
38  
Series N5700 User’s Guide  
Protection Functions  
CV/CC Mode Crossover  
If the power supply is in constant voltage mode and the load current  
increases above the current limit setting, the power supply switches  
to constant current mode. If the load decreases below the current  
limit setting, the power supply switches to constant voltage mode.  
CV/CC Signal  
Do not connect the CV/CC signal to a voltage source higher than 30VDC.  
Always connect the CV/CC signal to the voltage source with a series resistor to  
limit the sink current to less than 10mA.  
CAUTION  
The CV/CC signal available on the J1 connector indicates the  
operating mode of the power supply. The CV/CC signal is an open  
collector output with a 30V parallel zener at J1 pin 13, referenced to  
common at J1 pin 12. J1 pin 12 is connected internally to the –S  
terminal. When the power supply operates in constant voltage mode,  
CV/CC output is open. When the power supply operates in constant  
current mode, CV/CC signal output is low (0 - 0.6V), with maximum  
10mA sink current.  
Protection Functions  
Over-Voltage Protection  
The over-voltage protection protects against over-voltage conditions  
on the output. If the output voltage attempts to exceed the  
programmed limit in response to an analog programming signal or in  
the event of a power supply failure, the over-voltage protection  
circuit will protect the load by disabling the output. The voltage is  
monitored at the sense terminals, thus providing the protection level  
directly at the load. Upon detection of an over-voltage condition, the  
output is disabled, the display shows OVP, the PROT indicator blinks,  
and OV is set in the Questionable Condition status register.  
Adjustment of the over-voltage setting can be made when the output  
is enabled (On) or disabled (Off). To set the OVP level, press the  
OVP/UVL button so that the display indicates OUP. The display will  
show the OVP setting. Rotate the voltage knob to adjust the OVP level.  
The display will show OVP and the setting value for another five  
seconds and then return to its previous state.  
The OVP settings are limited at the minimum level to approximately  
5% above the output voltage setting. Attempting to adjust the OVP  
below this limit will result in no response to the adjustment attempt.  
Refer to Appendix A for the maximum OVP settings.  
Use one of the following methods to reset the OVP circuit after it  
activates. If the condition that caused the over-voltage shutdown is  
still present, the OVP circuit will turn the output off again.  
Series N5700 User’s Guide  
39  
Protection Functions  
Press the OUT ON button to turn the output on.  
Turn the AC power off, wait a few seconds, and turn it on.  
Turn the output off, then on again using the Shut Off pin on  
the J1 connector. This only applies in Auto-Restart mode.  
If the OVP continues to trip, try lowering the output voltage  
below the OVP setting, or raising the OVP setting.  
Under-Voltage Limit  
The under-voltage limit prevents adjustment of the output voltage  
below a certain limit. The combination of UVL and OVP functions let  
you create a protection window for sensitive load circuitry.  
Setting the UVL can be made when the output is enabled (On) or  
disabled (Off). To set the UVL level, press the OVP/UVL button twice,  
so that the display shows UUL. The display will show the UVL setting.  
Rotate the voltage knob to adjust the UVL level. The display will show  
UUL and the setting value for another five seconds and then return to  
its previous state.  
The UVL settings are limited at the maximum level to approximately  
5% below the output voltage setting. Attempting to adjust the UVL  
above this limit will result in no response to the adjustment attempt.  
The minimum UVL setting is zero.  
Over-Current Protection  
Over-current protection will shut down the power supply output if  
the load current exceeds the current limit setting. This protection is  
useful when the load is sensitive to an over-current condition.  
To arm the over-current protection, press the OCP button so that the  
OCP indicator illuminates. When armed, a transition from constant  
voltage to constant current mode will activate the over-current  
protection. When an over-current protection event occurs, the output  
is disabled, the display shows OCP, the PROT indicator blinks, and  
OC is set in the Questionable Condition status register.  
Use one of the following methods to reset over-current protection  
after it activates. If the load current is still higher than the current  
limit setting, the over-current protection will be activated again.  
Press the OUT ON button to turn the output on.  
Turn the AC power off, wait a few seconds, and turn it on.  
Turn the output off, then on again using the Shut Off pin on  
the J1 connector. This only applies in Auto-Restart mode.  
Press the OCP button to cancel the over-current protection.  
The display will show OFF because OCP protection is latched.  
Press the OUT ON button to reset OCP. With this method, the  
over-current protection is disabled. If the load current is still  
higher than the current limit setting, the power supply will  
only attempt to limit the current at the current limit setting.  
40  
Series N5700 User’s Guide  
Protection Functions  
Over-Temperature Protection  
The over-temperature protection circuit shuts down the power  
supply before the internal components can exceed their safe internal  
operating temperature. When an OTP condition occurs, the output is  
disabled, the display shows O7P, the PROT indicator blinks, and the  
OT status bit is set in the Questionable Condition status register.  
Resetting the OTP circuit can be automatic (non-latched) or manual  
(latched) depending on the Safe-Start or Auto-Restart mode.  
In Safe-Start mode, the OTP circuit is latched. The display continues  
to show O7P and the PROT indicator continues to blink. To reset the  
OTP circuit, press the OUT ON button.  
In Auto-Restart mode, the OTP circuit is non-latched. The power  
supply returns to its last setting automatically when the over-  
temperature condition is removed.  
Power-Fail Protection  
If the AC power stops briefly, but returns before the power supply  
has reset, the power-fail protection circuit trips and the PF status bit  
is set in the Questionable Condition status register. Resetting the  
power-fail protection can be automatic (non-latched) or manual  
(latched), depending on the Safe-Start or Auto-Restart mode.  
In Safe-Start mode, the output of the power supply is Off, as specified  
by the reset state when AC power returns. In Auto-Restart mode, the  
power supply recovers its last settings when AC power returns.  
Front Panel Lock-Out  
The front panel controls can be locked to protect from accidental  
power supply parameter change. Press and hold the LIMIT button to  
toggle between Locked front panel and Unlocked front panel. The  
display will cycle between LFP and UFP. Releasing the LIMIT button  
while one of the modes is displayed, selects that mode.  
In Unlocked front panel mode, the front panel controls are enabled  
to program and monitor the power supply parameters.  
In Locked front panel mode, the VOLTAGE and CURRENT knobs,  
the OCP button, and the OUT ON button are disabled  
The power supply will not respond to attempts to use these controls.  
The display will show LFP to indicate that the front panel is locked.  
The OVP/UVL button remains active to preview the OVP and UVL  
setting. The LIMIT button also remains active to preview the output  
voltage and current setting or to unlock the front panel.  
This function operates independently of the SCPI SYST:COMM:RLST command.  
If the front panel has been locked from the front panel, it cannot be unlocked by  
SYST:COMM:RLST. Conversely, if the front panel has been locked by  
SYST:COMM:RLST, it cannot be unlocked from the front panel.  
NOTE  
Series N5700 User’s Guide  
41  
Output On/Off Control  
Output On/Off Control  
The Output On/Off control turns the power supply output on or off.  
This can be done with the front panel OUT ON button or from the  
rear panel J1 connector. With the output off, adjustments can be  
made to the power supply or the load without shutting off AC power.  
OUT ON button  
The OUT ON button can be pressed at any time to enable or disable  
the power supply output. When the output is disabled, the output  
voltage and current go to zero and the display shows OFF.  
Output Shut-Off Terminals  
Output Shut-Off (SO) terminals are available on the J1 connector to  
enable or disable the power supply output. This function is edge-  
triggered. J1 pin 15 is the Shut-Off input, and pins 2 and 3, which are  
connected internally, are the signal common. All pins are optically  
isolated from the power supply output. The Shut-Off input accepts a  
2.5V-to-15V signal or an open/short contact to enable or disable the  
output. The Shut-Off control logic is selected by SW1 setup switch 5.  
When an on-to-off transition is detected at the Shut-Off input, the  
Shut-Off function enables or disables the output according to the  
signal level or the open/short applied to J1 pin 15. When the output  
has been disabled by the Shut-Off function, the display shows SO to  
indicate the output is disabled.  
To re-enable the output after it has shut down, you must disable the  
Shut-Off signal. In Auto-Restart mode, operation resumes  
automatically. In Safe-Start mode the Shut-Off function is latched.  
You must also press the OUT ON button or send an  
OUTPut:PROTection:CLEar command to resume operation.  
The Shut-Off function can be used to shut down multiple power  
supplies in a daisy-chain fashion as explained later in this chapter. It  
can also be used to reset the OVP and OCP as previously described.  
SW1 switch 5  
SO Signal Level  
2 - 15 V or Open  
0 – 0.4V or Short  
2 - 15 V or Open  
0 – 0.4V or Short  
Output  
On  
Display  
Down (default)  
Voltage/Current  
Off  
Off  
SO  
SO  
Up  
On  
Voltage/Current  
After applying AC power, the output will not be disabled by the Shut Off  
function if the Shut-Off input is in the shut-off state. This is because the unit  
has not detected an on-to-off Shut Off transition.  
NOTE  
42  
Series N5700 User’s Guide  
Output On/Off Control  
Enable/Disable Terminals  
To prevent possible damage to the unit, do not connect the Enable + or Enable –  
terminals to the positive or negative output terminals.  
CAUTION  
Enable/Disable terminals are available on the J1 connector to enable  
or disable the power supply output. This function is level-triggered.  
Simply connect a switch or relay between J1 pins 1 and 14. This  
function is activated by SW1 setup switch 9.  
These pins disable the output when they are opened. When the  
output is disabled, the PROT indicator on the front panel will blink.  
To re-enable the output after it has shut down, you must short the  
Enable + and Enable – terminals. In Auto-Restart mode, operation  
resumes automatically. In Safe-Start mode the Enable/Disable  
function is latched. You must also press the OUT ON button or send  
an OUTPut:PROTection:CLEar command to resume operation.  
SW1 switch 9  
Down (default)  
Up  
ENA+/ENA– pins  
Not active  
Opened  
Output  
On  
Display  
Prot Indicator  
Voltage/Current  
ENA  
Off  
Off  
Blinking  
Off  
Shorted  
On  
Voltage/Current  
Power Supply OK Signal  
The Power Supply OK signal on the J1 connector indicates a fault  
condition in the power supply. J1 pin 16 is a TTL output signal. Pins  
2 and 3, which are connected internally, are the signal common. All  
pins are optically isolated from the power supply output. With no  
fault, Power Supply OK is high, with a maximum source current of  
2mA. When a fault occurs, Power Supply OK is low, with a maximum  
sink current of 1mA. The following faults set this signal low:  
Over-voltage protection  
Over-current protection  
Over-temperature protection  
AC line failure  
Enable/Disable signal true  
Shut Off signal true  
GPIB failure  
Output turned off  
Safe-Start and Auto-Restart  
The power supply can be programmed to have either the last  
operating settings (Auto-Restart) or the reset settings (Safe-Start)  
apply at turn-on. Press and hold the OUT ON button to select between  
Safe-Start and Auto-Restart modes. The display continuously cycles  
between SAF and AUT every three seconds. Releasing the OUT ON  
button while one of the modes is displayed, selects that mode.  
In Safe-Start mode, the power supply turns on with the reset  
settings (see chapter 5 under “*RST”). The output is disabled and the  
output voltage and current are zero. This is the factory default.  
Series N5700 User’s Guide  
43  
Analog Programming of Output Voltage and Current  
In Auto-Restart mode, the power supply restores the operating  
settings that were saved when it was last turned off (see below). The  
output is either enabled or disabled according to its last setting.  
Output On/Off state  
Output voltage setting  
Output current setting  
OVP level  
UVL level  
OCP setting  
Locked/Unlocked front panel  
Start-up mode  
Daisy-Chained Output Shut-down  
It is possible to configure a multiple power supply system to shut  
down all the units when a fault condition occurs in one of the units.  
SW1 setup switch 5 must be in the Down position to enable the daisy-  
chain operation. Other switches are unaffected by this setting.  
If a fault occurs in one unit, its Power Supply OK signal is set low and  
its display will indicate the fault. The other units shut off with their  
displays indicating SO. When the fault condition is cleared, all units  
will recover according to their Safe-Start or Auto-Restart settings.  
The following figure shows three units daisy-chained - the same  
connection method can be used with additional units. The Shut Off  
and Power Supply OK signals are referenced to Chassis Common (J1  
pins 2 and 3).  
POWER SUPPLY  
#1  
POWER SUPPLY  
#2  
POWER SUPPLY  
#3  
J1-2,3 J1-16  
J1-15  
J1-2,3 J1-16  
J1-15  
J1-2,3 J1-16  
J1-15  
Com Supply OK Shut Off  
Com  
Supply OK Shut Off  
Com  
Supply OK Shut Off  
Analog Programming of Output Voltage and Current  
J1 pin 12, pin 22, and pin 23 are internally connected to the negative sense  
terminal. Do not reference these pins to any terminal other than the negative  
sense terminal, as it may damage the unit.  
CAUTION  
In Local mode, the output voltage and current is programmed with  
the front panel VOLTAGE and CURRENT knobs or over the remote  
interface. In Analog mode, the output voltage and current can be  
programmed either by an analog voltage or by resistors connected to  
the rear panel J1 connector.  
The J1 connector also provides monitoring signals for the output  
voltage and output current. The programming range and monitoring  
signal range can be selected using the SW1 setup switch.  
44  
Series N5700 User’s Guide  
Analog Programming of Output Voltage and Current  
With analog programming enabled, you cannot program the output voltage or  
current using the front panel knobs or the remote interface. However, you can  
read back output voltage or current from the front panel or the remote interface.  
NOTE  
Analog Programming Control Terminals  
J1 connector pin 8 accepts a TTL signal or an open/short contact  
switch (referenced to pin 12) to select between Local or Analog  
programming of the output voltage and current. This function is  
enabled or disabled by SW1 setup switches 1 and 2.  
J1 connector pin 21 is an open collector output that indicates if the  
power supply is in Local mode or in Analog mode. To use this output,  
connect a pull-up resistor to a voltage source of 30 VDC maximum.  
Choose the pull-up resistor so that the sink current will be less than  
5mA when the output is in low state.  
SW1 switch 1 and 2  
J1 pin 8  
function  
J1 pin 21  
signal  
Output voltage/  
current control  
Both Down (default)  
Either one, or both Up  
No effect  
0 or Short  
1 or Open  
Open  
Local  
0~0.6V  
Open  
Analog  
Local  
Voltage Programming of Output Voltage and Current  
To maintain the isolation of the power supply and prevent ground loops, use an  
isolated programming source when operating the unit using analog programming.  
CAUTION  
Voltage programming sources of 0 - 5 V or 0 - 10 V can be used to  
program the output voltage and current limit from zero to full scale.  
Set the power supply to analog voltage programming as follows:  
Make sure that the power supply is turned off.  
Set SW1 setup switch 1 (for voltage) and 2 (for current) to  
the Up position.  
Set SW1 setup switch 3 to select programming voltage range  
according to the following table.  
Make sure that SW1 setup switches 7 and 8 are set Down.  
Connect a short between J1 pin 8 and J1 pin 12 (see figure).  
Connect the programming source to the mating plug of J1 as  
shown in the following figure. Observe the correct polarity  
for the voltage source.  
Set the programming sources to the desired levels and turn  
the power supply on. Adjust the programming sources to  
change the power supply output.  
Series N5700 User’s Guide  
45  
Analog Programming of Output Voltage and Current  
The analog control circuits let you set the output voltage and current  
limit up to 5% over the model-rated maximum value. The power  
supply will operate within the extended range, however it is not  
recommended to operate the power supply over its voltage and  
current rating, and performance in this region is not guaranteed.  
SW1 switch 3  
Voltage Programming  
(J1 pin 9)  
Current Programming  
(J1 pin 10)  
Down (default)  
Up  
0 – 5 V  
0 – 5 V  
0 – 10 V  
0 – 10 V  
OUTPUT VOLTAGE  
PROGRAMMING  
CURRENT LIMIT  
PROGRAMMING  
+
+
12  
10  
9
8
13  
25  
1
14  
23  
22  
Resistance Programming of Output Voltage and Current  
Resistances of 0 - 5 kor 0 - 10 kcan be selected to program the  
output voltage and current limit from zero to full scale. Internal  
current sources supply a 1mA current through the external resistors.  
The voltage drop across the resistors is used as the programming  
voltage for the power supply. To maintain the temperature stability  
specification of the power supply, only use resistors that are stable  
and low noise, with a temperature coefficient less than 50ppm.  
Set the power supply to resistance programming as follows:  
Make sure that the power supply is turned off.  
Set SW1 setup switch 1 (for voltage) and 2 (for current) to  
the UP position.  
Set SW1 setup switch 3 to select programming resistance  
range according to the following table.  
Set SW1 setup switch 7 (for voltage) and 8 (for current) to  
the Up position to enable resistance programming.  
Connect a short between J1 pin 8 and J1 pin 12 (see figure).  
Connect the programming resistors to the mating plug of J1  
as shown in the following figure. A variable resistor can  
control the output over its entire range, or a combination of  
variable resistor and series/parallel resistors can control the  
output over a restricted portion of its range.  
Set the programming resistors to the desired resistance and  
turn the power supply on. Adjust the resistors to change the  
power supply output.  
46  
Series N5700 User’s Guide  
Analog Programming of Output Voltage and Current  
The analog control circuits let you set the output voltage and current  
limit up to 5% over the model-rated maximum value. The power  
supply will operate within the extended range, however it is not  
recommended to operate the power supply over its voltage and  
current rating, and performance in this region is not guaranteed.  
SW1 switch 3  
Voltage Programming  
(J1 pin 9)  
Current programming  
(J1 pin 10)  
Down (default)  
Up  
0 – 5 kΩ  
0 – 5 kΩ  
0 – 10 kΩ  
0 – 10 kΩ  
OUTPUT VOLTAGE  
PROGRAMMING  
CURRENT LIMIT  
PROGRAMMING  
PROGRAMMING  
RESISTOR  
PROGRAMMING  
RESISTOR  
12  
10  
9
8
13  
25  
1
14  
OPTIONAL SETS  
LOWER LIMIT  
OPTIONAL SETS  
LOWER LIMIT  
23  
22  
OPTIONAL SETS  
UPPER LIMIT  
OPTIONAL SETS  
UPPER LIMIT  
External Monitoring of Output Voltage and Current  
The J1 connector also provides analog signals for monitoring the  
output voltage and current. Selection of the voltage range between 0  
– 5 V or 0 – 10 V is made by SW1 setup switch 4. The monitoring  
signals represent 0 to 100% of the power supply output voltage and  
current rating. The monitor outputs have a 500 series output  
resistance. Make sure that the sensing circuit has an input resistance  
greater than 500 kor the accuracy will be reduced.  
SW1 switch 4  
Voltage  
range  
J1 signal  
connection  
Signal function  
Down (default)  
0 – 5 V  
J1 pin 11  
J1 pin 24  
J1 pin 11  
J1 pin 24  
Voltage Monitor  
Current Monitor  
Voltage Monitor  
Current Monitor  
Up  
0 – 10 V  
J1 pin 12 is the signal common for J1 pins 11 and 24.  
Series N5700 User’s Guide  
47  
4
Operating the Power supply Remotely  
Configuring the Interface50  
SCPI Commands – an Introduction 59  
This chapter contains information on how to configure the three  
remote interfaces that are provided on the back of the instrument. In  
most cases you can connect your power supply to any one of these  
interfaces and be up and running with a minimum amount of  
configuration.  
Detailed information on configuring the remote interfaces is included in the  
USB/LAN/GPIB Interfaces Connectivity Guide document located on the CD-  
ROM included with this manual.  
NOTE  
This chapter also contains a brief introduction to the SCPI  
Programming language. SCPI (Standard Commands for  
Programmable Instruments) is a programming language for  
controlling instrument functions over the GPIB. SCPI is layered on  
top of the hardware-portion of IEEE 488.2. The same SCPI commands  
and parameters control the same functions in different classes of  
instruments.  
Series N5700 User’s Guide  
49  
Configuring the Interface  
Configuring the Interface  
The Agilent N5700 power supplies support remote interface  
communication using a choice of three interfaces: GPIB, USB, and  
LAN. All three interfaces are live at power-on.  
Detailed information on configuring the remote interfaces is included in the  
USB/LAN/GPIB Interfaces Connectivity Guide document located on the CD-  
ROM included with this manual.  
NOTE  
GPIB Interface  
The following steps will help you quickly get started connecting your  
instrument to the General Purpose Interface Bus (GPIB):  
1
If you do not have a GPIB card installed in your computer, turn  
off your computer and install the GPIB interface card.  
2
If you do not have the Agilent I/O Library software installed on  
your computer, install the I/O Library software from the CD-ROM  
included with this manual.  
3
Connect your instrument to the GPIB card using a GPIB interface  
cable. Observe the following precautions:  
The total number of devices including the GPIB interface  
card is no more than 15.  
The total length of all cables used is no more than 2 meters  
times the number of devices connected together, up to a  
maximum of 20 meters.  
Do not stack more than three connector blocks together on  
any GPIB connector. Make sure all connectors are fully  
seated and the lock screws are firmly finger-tightened  
4
Set the power supply’s GPIB address. The power supply is  
shipped with its GPIB address set to 5. Use the front panel  
controls if you need to change the GPIB address.  
a
b
c
If the front panel REM indicator is illuminated, press the  
REM button to put the power supply into local mode.  
Press and hold the REM button for about three seconds. The  
DC VOLTS display will show the present GPIB address.  
To change the GPIB address, turn the voltage knob until the  
desired GPIB address appears in the display. Valid GPIB  
addresses are in the range of 0 to 30.  
5
6
Configure the GPIB interface card. Use IO Config to configure  
the installed GPIB interface card’s parameters.  
Use an application such as VISA Assistant to verify  
communications with instruments via the GPIB interface.  
50  
Series N5700 User’s Guide  
Configuring the Interface  
USB Interface  
The following steps will help you quickly get started connecting your  
instrument to the Universal Serial Bus (USB):  
1
If you do not have the Agilent I/O Library software installed on  
your computer, install the I/O library software from the CD-ROM  
included with this manual.  
2
Connect your instrument to the USB port on your computer. It  
may take several seconds for the computer to recognize the  
instrument. When the instrument is recognized, your computer  
will display a dialog box labeled: Assign USB device alias.  
3
If desired, you can supply a new alias name in the Alias name  
field. The Alias name can be used as a substitute for the USB ID  
string (also referred to as the Visa Resource Name), which can be  
quite lengthy. The Alias name will appear in the Preferred field.  
The USB ID string is:  
USB0::2391::2055::serialnumber::0:INSTR  
NOTE  
where 2391 is the Agilent code, 2055 is the N5700 code, and serialnumber is  
the 8-digit serial number located on the label on the side of the unit.  
4
You can also use IO Config to display the USB Devices dialog  
box. From this box you can verify the instrument’s identification  
parameters as well as change its Alias name.  
5
Use an application such as VISA Assistant to verify  
communications with instruments via the USB interface. Use  
either the Alias name or the Visa Resource Name to communicate  
with the instrument.  
Series N5700 User’s Guide  
51  
Configuring the Interface  
LAN Interface  
The following steps will help you quickly get started connecting and  
configuring your instrument on a Local Area Network (LAN).  
The built-in Web server:  
Your Agilent N5700 power supply has a built-in Web server that lets  
you control it directly from an internet browser on your computer.  
The instrument’s built-in Web server, which is enabled when shipped,  
lets you control and configure all of the front panel functions as well  
as additional functions such as triggering, which are not available  
from the front panel. Provided that you have correctly configured the  
instrument’s LAN settings as described in this section, simply type  
the instrument’s Hostname or IP address into your browser to launch  
the application.  
The built-in Web server requires Internet Explorer 5+ or Netscape 6.2+. Your PC  
must also have the ability to communicate over a LAN. You also need the Java  
(Sun) plug-in. This is included in the Java Runtime Environment. Refer to Sun  
Microsystem’s website.  
NOTE  
The default Hostname:  
Each Agilent N5700 power supply is shipped with a default  
Hostname. The as-shipped LAN Hostname has the format:  
A-modelnumber-serialnumber  
where modelnumber is the instrument’s 6-character model number  
(e.g. N5741A), and serialnumber is 5th through the 9th character of  
the 10-character serial number located on the label on the side of the  
unit (e.g. D0001 if the serial number is US24D00013).  
Connecting to a site LAN:  
1
2
If you do not have the Agilent I/O Library software installed on  
your computer, install the I/O software from the CD-ROM  
included with this manual.  
Connect the instrument to the site LAN. Provided that your  
network has a DHCP server and uses Dynamic DNS naming  
service, the instrument will automatically obtain an IP address  
from the network. This may take up to one minute. It will also  
register its hostname with the dynamic DNS server. The default  
hostname can then be used to communicate with the instrument.  
3
Use the Web browser on your computer to communicate with the  
instrument’s Web server.  
Enter the instrument’s LAN Hostname in the Address field of  
your Internet browser. A-N5741A-D0001 is an example of a Host  
name. You should see the instrument’s home page.  
52  
Series N5700 User’s Guide  
Configuring the Interface  
4
If you need to reconfigure the LAN parameters, click on the View  
& Modify Configuration tab. All LAN parameters can be  
reconfigured using this page.  
If this does not work, perform a low-level verification of the LAN connection  
using ping. To do this, open a MS-DOS Command Prompt box and type:  
ping <default hostname>. Ping should indicate that it was able to connect with  
the N5700 unit. It will also indicate the IP address assigned.  
NOTE  
If Ping does not work, you may need to configure the LAN parameters using the  
Setup Utility as described later in this section.  
Connecting to a private LAN:  
1
2
3
If you do not have the Agilent I/O Library software installed on  
your computer, install the I/O software from the CD-ROM  
included with this manual.  
Connect the instrument to the PC using a LAN crossover cable.  
Alternatively, connect the computer and the instrument to a  
standalone hub or switch using regular LAN cables.  
Make sure the computer is configured to obtain its IP address  
from DHCP. If the computer had been connected to a site LAN, it  
may still retain previous network settings from the site LAN. If  
running Windows 2000 or XP, wait 1 minute after disconnecting  
it from the site LAN before connecting it to the private LAN. This  
allows Windows to sense that it is on a different network and  
restart the network configuration. If running Windows 98, you  
may need to manually release the previous settings. To do this,  
open an MS-DOS Command Prompt box and type:  
ipconfig /release_all  
ipconfig /renew_all  
4
5
Make sure that NetBIOS over TCP/IP is enabled on the PC. In  
Windows 2000 this is located in: Settings/Network and Dial-up  
Connections/Local Area Connections/Properties/Internet  
Protocol (TCP/IP) /Advanced/WINS.  
Turn on the computer and your instrument. Wait at least 2.5  
minutes. The computer and instrument each try to obtain an  
address from DHCP. Since there is no DHCP server, this fails and  
each assigns itself an IP address from the block 169.254.nnn.nnn.  
Use the default Hostname to communicate with the instrument.  
6
7
Use the Web browser on your computer to communicate with the  
instrument’s Web server.  
Enter the instrument’s LAN Hostname in the Address field of  
your Internet browser. A-N5741A-D0001 is an example of a Host  
name. You should see the instrument’s home page.  
If you need to reconfigure the LAN parameters, click on the View  
& Modify Configuration tab. All LAN parameters can be  
reconfigured using this page.  
Series N5700 User’s Guide  
53  
Configuring the Interface  
If this does not work, perform a low-level verification of the LAN connection  
using ping. To do this, open a MS-DOS Command Prompt box and type:  
ping <default hostname>. Ping should indicate that it was able to connect with  
the N5700 unit. It will also indicate the IP address assigned.  
NOTE  
Note that certain firewall software can interfere with ping. If ping does not  
work, try temporarily disabling the firewall.  
If Ping still does not work, you may need to configure the LAN parameters  
using the Setup Utility as described later in this section.  
Configuring the LAN parameters:  
To configure the LAN parameters from the instrument’s Web server,  
click on the View & Modify Configuration tab on the left side of the  
page. Then click on the Modify Configuration button on the top of the  
page. The following screen lets you modify the LAN parameters:  
The configurable LAN parameters include:  
DHCP  
This parameter allows Dynamic Host Configuration  
Protocol (DHCP) to be enabled or disabled. DHCP is a  
protocol for assigning dynamic addresses to devices on a  
network. If DHCP is enabled (On), the instrument will try  
to obtain an IP address from a DHCP server. If a DHCP  
server is found, the DHCP server will assign an IP  
address, Subnet Mask and Default Gateway to the  
instrument. If DHCP is disabled (Off) or unavailable, the  
instrument will try to obtain an IP address using Auto IP.  
54  
Series N5700 User’s Guide  
Configuring the Interface  
AutoIP  
This parameter allows automatic IP addressing to be  
enabled or disabled. AutoIP automatically assigns  
addresses on networks that do not have a DHCP server. If  
AutoIP is enabled (On), an IP address, Subnet Mask and  
Default Gateway will automatically be assigned  
to the instrument. If AutoIP is disabled (Off), the  
instrument will use the manual IP Address, Subnet Mask  
and Default Gateway specified in the following fields  
during power-on.  
IP Address  
This value is the Internet Protocol (IP) address of the  
instrument. An IP address is required for all IP and  
TCP/IP communications with the instrument. An IP  
Address is 4 decimal numbers separated by periods.  
Each decimal number ranges from 0 through 255. If the IP  
Address is changed, the instrument must be rebooted for  
this change to be effective.  
Subnet Mask  
This value is used to enable the instrument to determine  
if a client IP address is on the same local subnet. When a  
client IP address is on a different subnet, all packets must  
be sent to the Default Gateway. If the Subnet Mask is  
changed, the instrument must be rebooted for this  
change to be effective.  
Default  
Gateway  
This value is the IP Address of the default gateway that  
allows the instrument to communicate with systems that  
are not on the local subnet, as determined by the subnet  
mask setting. A value of 0.0.0.0 indicates that no default  
gateway is defined. If the Default Gateway is changed,  
the instrument must be rebooted for this change to be  
effective.  
DNS  
DNS is an internet service that translates domain names  
into IP addresses. This parameter indicates whether the  
IP address of the Domain Name System (DNS) server is  
obtained automatically or manually. If the parameter is  
set to Auto, the DNS server address is obtained from  
DHCP. If the parameter is set to Manual, the DNS server  
in the following field is used.  
DNS Server  
This value is the address of the Domain Name System  
(DNS) server. If DHCP is disabled, the DNS server  
parameter is needed for the instrument to be able to find  
and display its Hostname.  
Naming  
service  
This parameter specifies the Naming service, if any, to be  
used to register the instrument. NetBIOS indicates the  
instrument will be registered using the RFC NetBIOS  
naming protocol. Dynamic DNS indicates the instrument  
will be registered using the Dynamic DNS naming system.  
Series N5700 User’s Guide  
55  
Configuring the Interface  
Hostname  
This field registers the supplied name with the selected  
naming service. If the field is left blank, then no name is  
registered. A Hostname may contain upper and lower  
case letters, numbers and dashes(-). The maximum length  
is 15 characters. The factory default is A-modelnumber-  
serialnumber. Modelnumber is the instrument’s 6-  
character model number, and serialnumber is 5th through  
the 9th character of the 10-character serial number  
located on the label on the side of the unit.  
Domain  
This field registers the Internet domain for the  
instrument. The Domain must start with a letter and may  
contain upper and lower case letters, numbers, dashes(-)  
and dots(.).  
Description  
This field lets you assign a user-friendly name to the  
instrument. This name is used as the title of the  
instrument home page.  
LAN  
Keepalive  
Timeout  
This value sets the LAN keepalive in seconds. The  
instrument uses the TCP keepalive timer to determine if a  
client is still reachable. If after the specified amount of  
time, there has been no activity on the connection, the  
instrument will send keepalive probes to the client to  
determine if it is still alive. If not, the connection will be  
marked as down or "dropped." The instrument will  
release any resources that were allocated to that client.  
When this parameter is set, it is recommended that the  
largest value be used that still meets the application's  
need for unreachable client detection. Smaller LAN  
Keepalive values will generate more keepalive probes  
(network traffic), using more of the available network  
bandwidth. Check the Enable box to enable the Lan  
Keepalive function. Allowed values: 720 - 99999 seconds.  
56  
Series N5700 User’s Guide  
Configuring the Interface  
Using the Setup Utility  
A Setup Utility that lets you configure the LAN settings of your  
instrument is provided on the CD-ROM that is included with this  
manual. Install and run this Setup Utility if you cannot configure the  
LAN interface as previously described in this section.  
1
2
3
Connect your power supply to your PC using either a USB a GPIB  
interface as previously described.  
Install the Setup utility from the CD-ROM onto our PC. Run the  
Setup utility be clicking on its icon.  
Select the interface you are using. Click on the Connections tab  
and select either USB or GPIB.  
4
Configure the following LAN address parameters. These are  
located under the Settings tab. For a description of these  
parameters, refer to the previous section.  
5
Enable the LAN and, optionally, the built-in Web server using the  
applicable check boxes.  
Series N5700 User’s Guide  
57  
Configuring the Interface  
6
7
Click the Set button to save all the settings information.  
Connect the LAN cable to your instrument and PC. Reboot the  
instrument and then wait about 2.5 minutes before using the new  
LAN settings.  
8
View the LAN status settings located under the LAN Status tab.  
The assigned IP addres and Hostname will appear on this screen.  
You can also use the Setup utility to view model-specific information  
about your power supply. Click the Model About tab to view the  
model number, serial number, active firmware version, backup  
firmware version, and output ratings  
Tips for the using the LAN interface  
Using VISA  
Use the VISA TCP/IP connect string in the VISA viOpen function.  
This string is of the form: TCPIP0::hostname::INSTR  
where hostname is the default hostname (or new hostname if it has  
been reconfigured. This can also be the unit’s IP address. Do not use  
the IP address if it has been dynamically obtained, as it could change.  
Using VISA Assistant  
Run the Agilent library IO config program.  
In the Configured Interfaces pane, click on TCPIP0. In the LAN Client  
dialog, click the Edit VISA Config button. In the TCPIP devices dialog,  
click the Add device button. In the Machine Name/IP box, enter the  
N5700 Hostname or IP address.  
Using Telnet  
In an MS-DOS Command Prompt box type: telnet hostname 5024  
where hostname is the N5700 Hostname or IP address and 5024 is  
the instrument’s telnet port. You should get a telnet session box with  
a title indicating that you are connected to the N5700 unit. Type SCPI  
commands at the prompt.  
58  
Series N5700 User’s Guide  
SCPI Commands – an Introduction  
SCPI Commands – an Introduction  
SCPI (Standard Commands for Programmable Instruments) is an  
ASCII-based instrument command language designed for test and  
measurement instruments. SCPI commands are based on a  
hierarchical structure, also known as a tree system. In this system,  
associated commands are grouped together under a common node or  
root, thus forming subsystems. Subsystem commands perform  
specific power supply functions. A portion of the SOURce subsystem  
is shown below to illustrate the tree system.  
[SOURce:]  
CURRent  
[:LEVel]  
[:IMMediate] <NRf+>  
:TRIGgered <NRf+>  
:PROTection  
:STATe <Bool>  
SOURce is the root keyword of the command, CURRent is a second-  
level keyword, LEVel and PROTection are third-level keywords, and  
IMMediate, TRIGgered and STATe are fourth-level keywords. Colons  
(:) separate higher-level from lower-level keywords.  
Syntax  
The following command syntax is used in this manual:  
Square Brackets [ ]  
Angle brackets < >  
Items within square brackets are optional. The representation [SOURce:]VOLTage  
means that SOURce: may be omitted.  
Items within angle brackets are parameter descriptions. For example, <NR1>  
indicates a specific form of numerical data.  
Vertical bar  
Braces  
|
Vertical bars separate alternative parameters. For example, VOLT | CURR indicates  
that either "VOLT" or "CURR" can be used as a parameter.  
{ }  
Braces enclose the parameter choices for a given command.  
The syntax characters cannot be included in the command string.  
Multiple Commands in a Message  
Multiple SCPI commands can be combined and sent as a single  
message with one message terminator. There are two important  
considerations when sending several commands within a single  
message:  
Use a semicolon (;) to separate commands within a message.  
There is an implied path that affects how commands are  
interpreted by the power supply.  
The command path can be thought of as a string that gets inserted  
before each keyword within a message. For the first command in a  
message, the path is a null string. For each subsequent command the  
Series N5700 User’s Guide  
59  
SCPI Commands – an Introduction  
path is defined as the characters that make up the keywords of the  
previous command in the message up to and including the last colon  
separator. An example of a message with two commands is:  
OUTPut:STATe ON;PROTection:CLEar  
which shows the use of the semicolon separating the two commands,  
and also illustrates the command path concept. Note that with the  
second command, the leading keyword OUTPut was omitted because  
after the OUTPut:STATe ON command, the path became defined as  
OUTPut, and thus the second command was interpreted as:  
OUTPut:PROTection:CLEar  
In fact, it would have been incorrect to include the OUTPut keyword  
in the second command, because the result after combining it with  
the command path would be:  
OUTPut:OUTPut:PROTection:CLEar  
which would result in a syntax error.  
Commands from Different Subsystems  
In order to combine commands from different subsystems, you need  
to be able to reset the command path to a null string within a  
message. Beginning the command with a colon (:), discards the  
previous path. For example, you could clear the output protection  
and check the status of the Operation Condition register in one  
message by using a root specifier as follows:  
OUTPut:PROTection:CLEar;:STATus:OPERation:CONDition?  
The following message shows how to combine commands from  
different subsystems as well as within the same subsystem.  
VOLTage:LEVel 7.5;PROTection 10;:CURRent 0.25  
Note the use of the optional keyword LEVel to maintain the correct  
path within the subsystems, and the use of the root specifier (:) to  
move between subsystems.  
Message Unit  
The simplest SCPI command is a single message unit consisting of a  
keyword followed by a message terminator. The message unit may  
include a parameter after the keyword. The parameter can be  
numeric or a string.  
ABORt<NL>  
VOLTage 20  
VOLTage:TRIGgered MINimum  
Colons (:) separate higher-level keywords from lower-level keywords.  
Use a blank space to separate parameters from keywords. If a  
command requires more than one parameter, use commas to  
separate adjacent parameters.  
60  
Series N5700 User’s Guide  
SCPI Commands – an Introduction  
In the previous examples, the upper-case letters indicate the  
abbreviated spelling for the keyword. For shorter program lines, you  
can send the abbreviated form. For better program readability, you  
can send the long form. For example, VOLT and VOLTage are both  
acceptable forms. You can use upper- or lower-case letters. Therefore,  
VOLTAGE, Volt, and volt are all acceptable. Other forms, such as VOL  
and VOLTAG, generate an error.  
Queries  
You can query the current value of most commands by adding a  
question mark to the command (VOLTage?, VOLTage:TRIGgered?). If  
a query contains a parameter, place the query indicator at the end of  
the last keyword. Observe the following precautions with queries:  
Add a blank space between the query indicator (?) and any  
subsequent parameter. (VOLTage:TRIGgered? MAX)  
Set up the proper number of variables for the returned data.  
Read back all the results of a query before sending another  
command to the power supply. Otherwise a Query Interrupted  
error will occur and the unreturned data will be lost.  
Common Commands  
Common commands generally control overall power supply  
functions, such as reset, status, and synchronization. All common  
commands consist of a three-letter mnemonic preceded by an  
asterisk: *RST *IDN? *SRE 8  
You can combine common commands with subsystem commands in  
the same message. Use semicolons to separate the common command  
from the subsystem commands. Common commands do not affect the  
command path; you may insert them anywhere in the message.  
VOLTage:TRIGgered 10;:INITiate;*TRG  
OUTPut OFF;*RCL 2;OUTPut ON  
Command Terminators  
A terminator informs SCPI that it has reached the end of a command.  
Three permitted command terminators are:  
newline (<NL>), which is ASCII decimal 10 or hex 0A.  
end or identify (<END>)  
both of the above (<NL><END>).  
In the examples of this guide, the message terminator is assumed.  
Series N5700 User’s Guide  
61  
SCPI Commands – an Introduction  
Parameter Types  
Data programmed or queried from the power supply is ASCII. The  
data may be numerical or character string.  
Numeric Parameters  
Symbol  
Response Formats  
<NR1>  
Digits with an implied decimal point assumed at the right of the  
least-significant digit. Examples: 273  
<NR2>  
<NR3>  
Digits with an explicit decimal point. Example: .0273  
Digits with an explicit decimal point and an exponent. Example:  
2.73E+2  
Parameter Formats  
<NRf>  
Extended format that includes <NR1>, <NR2> and <NR3>.  
Examples: 273 273. 2.73E2  
<NRf+>  
Expanded decimal format that includes <NRf> and MIN  
MAX. Examples: 273 273. 2.73E2 MAX.  
MIN and MAX are the minimum and maximum limit values that  
are implicit in the range specification for the parameter.  
<Bool>  
Boolean Data. Example: 0 | 1 or ON | OFF  
Discrete and String Parameters  
Symbol  
Response Formats  
Discrete parameters are used to program settings that have a limited  
number of values (like RST, RCL0, BUS). You can mix upper- and  
lower-case letters. Query responses will always return the short form  
in all upper-case letters  
None  
String parameters can contain virtually any set of ASCII characters. A  
string must begin and end with matching quotes; either with a single  
quote or a double quote. You can include the quote delimiter as part of  
the string by typing it twice without any characters in between.  
“string”  
Suffixes and Multipliers  
Class  
Suffix  
Unit  
Unit with Multiplier  
MA (milliampere)  
MV (millivolt)  
Current  
Amplitude  
Time  
A
V
S
ampere  
volt  
second  
MS (millisecond)  
Common Multipliers  
1E3  
K
kilo  
1E-3  
1E-6  
M
U
milli  
micro  
62  
Series N5700 User’s Guide  
SCPI Commands – an Introduction  
Response Data Types  
Symbol  
Response Formats  
<CRD>  
Character Response Data. Permits the return of character  
strings.  
<AARD>  
<SRD>  
Arbitrary ASCII Response Data. Permits the return of  
undelimited 7-bit ASCII. This data type has an implied message  
terminator.  
String Response Data. Returns string parameters enclosed in  
double quotes.  
Device Clear  
You can send a Device Clear at any time to abort a SCPI command  
that may be hanging up the GPIB interface. Device Clear clears the  
input and output buffers of the power supply. The status registers,  
error queue, and all configuration states are left unchanged by Device  
Clear. Device Clear also prepares the power supply to accept a new  
command string. The following statement shows how to send a device  
clear over the GPIB interface using Agilent BASIC:  
CLEAR 705  
IEEE-488 Device Clear  
The following statement shows how to send a device clear over the  
GPIB interface using the GPIB command library for C or  
QuickBASIC:  
IOCLEAR (705)  
Series N5700 User’s Guide  
63  
5
Language Reference  
Calibration Commands 66  
Measure Commands67  
Output Commands68  
Source Commands69  
Status Commands 71  
System Commands 77  
Trigger Commands 79  
This section gives the syntax and parameters for all the IEEE 488.2  
SCPI Subsystem commands and Common commands used by the  
power supply. It is assumed that you are familiar with the material in  
chapter 4, which explains the terms, symbols, and syntactical  
structures used here and gives an introduction to programming. You  
should also be familiar with chapter 3, in order to understand how  
the power supply functions.  
Subsystem commands are specific to functions. They can be a single  
command or a group of commands. The groups are comprised of  
commands that extend one or more levels below the root. The  
subsystem commands are arranged alphabetically according to the  
function they perform.  
Common commands begin with an * and consist of three letters  
(command) or three letters and a ? (query). They are defined by the  
IEEE 488.2 standard to perform common interface functions.  
Common commands are grouped along with the subsystem  
commands according to the function they perform.  
Series N5700 User’s Guide  
65  
Calibration Commands  
Calibration Commands  
Calibration commands let you enable and disable the calibration  
mode, change the calibration password, calibrate current and voltage  
programming, and store new calibration constants in nonvolatile  
memory.  
If calibration mode has not been enabled with CALibrate:STATe, the calibration  
commands will generate an error.  
NOTE  
CALibrate:CURRent[:LEVel] <NRf>  
This command initiates the calibration of the output current. The  
value that you enter selects the range that is being calibrated.  
CALibrate:DATA <NRf>  
This command enters a calibration value that you obtain by reading  
an external meter. You must first select a calibration level (with  
CALibrate:LEVel) for the value being entered. Data values are  
entered in either volts or amperes, depending on which function is  
being calibrated.  
CALibrate:DATE “<date>”  
CALibrate:DATE?  
This command stores the date the unit was last calibrated. The data  
must be of the numeric format “yyyy/mm/dd” where yyyy indicates  
the year, mm indicates the month, and dd indicates the day. The  
query returns the date.  
CALibrate:LEVel P1|P2  
This command selects the next point in the calibration sequence.  
P1 is the first calibration point,  
P2 is the second calibration point.  
CALibrate:PASSword <NRf>  
This command lets you change the calibration password. A new  
password is automatically stored in nonvolatile memory. If the  
password is set to 0, password protection is removed and the ability  
to enter calibration mode is unrestricted. The default password is 0  
(zero).  
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Series N5700 User’s Guide  
Measure Commands  
CALibrate:STATe <Bool> [,<NRf>]  
CALibrate:STATe?  
This command enables/disables calibration mode. Calibration mode  
must be enabled for the power supply to accept any other calibration  
commands. The first parameter specifies the enabled or disabled  
state On (1) or Off (0). The second parameter is the password.  
A password is required if calibration mode is being enabled and the  
existing password is not 0. If the password is not entered or is  
incorrect, an error is generated and the calibration mode remains  
disabled. The query returns only the state, not the password.  
The *RST value = Off.  
CALibrate:VOLTage[:LEVel] <NRf>  
This command initiates the calibration of the output voltage. The  
value that you enter selects the range that is being calibrated.  
Measure Commands  
Measure commands measure the output voltage or current. MEASure  
commands acquire new data before returning the reading.  
Measurement overflows return a reading of 9.91E+37.  
MEASure[:SCALar]:CURRent[:DC]?  
MEASure[:SCALar]:VOLTage[:DC]?  
These queries perform a measurement and return the DC output  
current in amperes or DC output voltage in volts.  
Series N5700 User’s Guide  
67  
Output Commands  
Output Commands  
Output commands enable the output, power-on, and protection  
functions.  
OUTPut[:STATe] <Bool>  
OUTPut[:STATe]?  
This command enables or disables the specified output(s). The  
enabled state is On (1); the disabled state is Off (0). The state of a  
disabled output is a condition of zero output voltage and a zero  
source current (see *RST). The query returns 0 if the output is off,  
and 1 if the output is on. The *RST value = Off.  
OUTPut:PON:STATe RST|AUTO  
OUTPut:PON:STATe?  
This command determines if the power-on state will be determined  
by the reset state, or the settings the unit had when it was turned off.  
RST programs the unit to the reset state; AUTO programs the unit to  
the settings it had when it was turned off. The power-on state  
information is saved on non-volatile memory.  
Refer to *RST and *RCL under System Commands for details.  
OUTPut:PROTection:CLEar  
This command clears the latched signals that have disabled the  
output. The over-voltage and over-current conditions are always  
latching. The over-temperature condition, AC-fail condition, Enable  
pins, and SO pins are latching if OUTPut:PON:STATe is RST, and non-  
latching if OUTPut:PON:STATe is AUTO.  
All conditions that generate the fault must be removed before the  
latch can be cleared. The output is then restored to the state it was in  
before the fault condition occurred.  
68  
Series N5700 User’s Guide  
Source Commands  
Source Commands  
Source commands program the voltage, current, triggered, and  
protection functions.  
[SOURce:]CURRent[:LEVel][:IMMediate][:AMPLitude] <NRf+>  
[SOURce:]CURRent[:LEVel][:IMMediate][:AMPLitude]?  
[SOURce:]CURRent[:LEVel]:TRIGgered[:AMPLitude] <NRf+>  
[SOURce:]CURRent[:LEVel]:TRIGgered[:AMPLitude]?  
These commands set the immediate and the triggered output current  
level. The values are programmed in amperes. The immediate level is  
the output current setting. The triggered level is a stored value that is  
transferred to the output when a trigger occurs. At *RST, the  
immediate and triggered current values = 0.  
[SOURce:]CURRent:PROTection:STATe <Bool>  
[SOURce:]CURRent:PROTection:STATe?  
This command enables or disables the over-current protection (OCP)  
function. The enabled state is On (1); the disabled state is Off (0). If  
the over-current protection function is enabled and the output goes  
into constant current operation, the output is disabled and OC is set  
in the Questionable Condition status register. The *RST value = Off.  
An over-current condition can be cleared with the Output Protection  
Clear command after the cause of the condition is removed.  
[SOURce:]VOLTage[:LEVel][:IMMediate][:AMPLitude] <NRf+>  
[SOURce:]VOLTage[:LEVel][:IMMediate][:AMPLitude]?  
[SOURce:]VOLTage[:LEVel]:TRIGgered[:AMPLitude] <NRf+>  
[SOURce:]VOLTage[:LEVel]:TRIGgered[:AMPLitude]?  
These commands set the immediate and the triggered output voltage  
level. The values are programmed in volts. The immediate level is the  
output voltage setting. The triggered level is a stored value that is  
transferred to the output when a trigger occurs. At *RST, the  
immediate and triggered voltage values = 0.  
The range of values that can be programmed for these commands is  
coupled with the voltage protection and the voltage limit low settings.  
The maximum value for the immediate and triggered voltage level is  
either the value in the following table, or the voltage protection  
setting divided by 1.05; whichever is lower. The minimum value is  
either the value in the table, or the low voltage setting divided by  
0.95; whichever is higher.  
Note that triggered values can be programmed outside these limits,  
but an error will be generated when the trigger occurs.  
Model (V rating)  
Min. voltage level  
Max. voltage level  
6V  
0
6.3  
8V  
0
8.4  
12.5V  
0
13.125  
20V  
0
21  
30V  
0
31.5  
40V  
0
41.9  
60V  
0
62.85  
80V  
0
83.8  
100V  
0
104.76  
150V  
0
157.1  
300V  
0
314.2  
600V  
0
628.5  
Series N5700 User’s Guide  
69  
Source Commands  
[SOURce:]VOLTage:LIMit:LOW <NRf+>  
[SOURce:]VOLTage:LIMit:LOW?  
This command sets the low voltage limit of the output. When a low  
voltage limit has been set, the instrument will ignore any  
programming commands that attempt to set the output voltage below  
the low voltage limit. The*RST value = Max.  
The range of values that can be programmed for this command is  
coupled with the immediate voltage level setting. The maximum value  
for the low voltage limit is either the value in the following table, or  
the immediate voltage setting multiplied by 0.95; whichever is lower.  
The minimum setting is the value in the table.  
Model (V rating)  
Min. low limit  
Max. low limit  
6V  
0
8V  
0
12.5V  
0
20V  
0
30V  
0
40V  
0
60V  
0
80V  
0
100V  
0
150V  
0
300V  
0
600V  
0
5.7  
7.6  
11.9  
19  
28.5  
38  
57  
76  
95  
142  
285  
570  
[SOURce:]VOLTage:PROTection:LEVel <NRf+>  
[SOURce:]VOLTage:PROTection:LEVel?  
This command sets the over-voltage protection (OVP) level of the  
output. The values are programmed in volts. If the output voltage  
exceeds the OVP level, the output is disabled and OV is set in the  
Questionable Condition status register. The*RST value = Max.  
The range of values that can be programmed for this command is  
coupled with the immediate voltage level setting. The minimum value  
for the voltage protection level is either the value in the following  
table, or the immediate voltage setting multiplied by 1.05; whichever  
is higher. The maximum setting is the value in the table.  
An over-voltage condition can be cleared with the Output Protection  
Clear command after the condition that caused the OVP trip is  
removed.  
Model (V rating)  
6V  
0.5  
7.5  
8V  
0.5  
10  
12.5V  
1.0  
20V  
1.0  
24  
30V  
2.0  
36  
40V  
2.0  
44  
60V  
5.0  
66  
80V  
5.0  
88  
100V  
5.0  
150V  
5.0  
300V  
5.0  
600V  
5.0  
Min. protection limit  
Max. protection limit  
15  
110  
165  
330  
660  
70  
Series N5700 User’s Guide  
Status Commands  
Status Commands  
Status commands program the power supply’s status registers. As  
shown in the following figure, the power supply has three groups of  
status registers; Operation, Questionable, and Standard Event. The  
Operation and Questionable status groups each consist of the  
Condition, Enable, and Event registers and NTR and PTR filters.  
QUESTIONABLE STATUS  
CONDITION PTR/NTR  
EVENT  
ENABLE  
1
0
1
1
2
4
1
1
OV  
OC  
PF  
2
4
2
4
2
4
2
4
16  
16  
16  
16  
OT  
LOGICAL  
OR  
9
INH  
512  
512  
512  
512  
10  
UNR  
1024  
1024  
1024  
1024  
STAT:QUES:COND?  
STAT:QUES:ENAB <n>  
STAT:QUES:ENAB  
ERROR QUEUE  
STAT:QUES:PTR |:NTR <n>  
STAT:QUES:PTR |:NTR ?  
Err  
Err  
ERROR  
QUEUE  
NOT  
STAT:QUES:EVEN?  
EMPTY  
Err  
SERVICE  
REQUEST  
ENABLE  
STANDARD EVENT  
STATUS  
STATUS BYTE  
OUTPUT BUFFER  
EVENT  
1
ENABLE  
1
2
4
4
8
0
OPC  
QYE  
Data  
Data  
QUEUE  
NOT  
QUES  
3
8
EMPTY  
2
3
4
4
MAV  
ESB  
4
4
16  
16  
32  
Data  
LOGICAL  
OR  
DDE  
EXE  
CME  
8
8
5
LOGICAL  
OR  
32  
16  
32  
16  
32  
MSS  
6
7
RQS  
5
64  
OPER  
128  
128  
7
PON  
128  
128  
*STB?  
*SRE<n>  
*SRE?  
*ESR?  
*ESE<n>  
*ESE?  
OPERATION STATUS  
SERVICE  
REQUEST  
GENERATION  
CONDITION PTR/NTR  
EVENT  
32  
ENABLE  
32  
5
32  
WTG  
CV  
32  
LOGICAL  
OR  
8
256  
1024  
256  
256  
256  
10  
1024  
1024  
1024  
CC  
STAT:OPER:COND?  
STAT:OPER:ENAB <n>  
STAT:OPER:ENAB  
STAT:OPER:PTR |:NTR <n>  
STAT:OPER:PTR |:NTR ?  
STAT:OPER:EVEN?  
Series N5700 User’s Guide  
71  
Status Commands  
The Standard Event group is programmed with Common commands  
as described later in this section. Common commands also control  
additional status functions such as the Service Request Enable and  
the Status Byte registers.  
STATus:PRESet  
This command sets all defined bits in the Operation and Questionable  
PTR registers. The command clears all defined bits in the Operation  
and Questionable NTR and Enable registers.  
STATus:OPERation[:EVENt]?  
This query returns the value of the Operation Event register. The  
Event register is a read-only register, which stores (latches) all events  
that are passed by the Operation NTR and/or PTR filter. Reading the  
Operation Event register clears it. The bit configuration of the  
Operation status registers is as follows:  
Bit Position  
Bit Value  
15-11 10  
9
8
7-6  
5
4-0  
1024  
CC  
256  
CV  
32  
Bit Name  
WTG  
CC = The output is in constant current  
CV = The output is in constant voltage  
WTG = The unit is waiting for a transient trigger  
STATus:OPERation:CONDition?  
This query returns the value of the Operation Condition register.  
That is a read-only register, which holds the live (unlatched)  
operational status of the power supply.  
STATus:OPERation:ENABle <NRf>  
STATus:OPERation:ENABle?  
This command and its query set and read the value of the  
Operational Enable register. This register is a mask for enabling  
specific bits from the Operation Event register to set the operation  
summary bit (OPER) of the Status Byte register. This bit (bit 7) is the  
logical OR of all the Operational Event register bits that are enabled  
by the Status Operation Enable register. The Preset value = 0.  
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Series N5700 User’s Guide  
Status Commands  
STATus:OPERation:NTR <NRf>  
STATus:OPERation:PTR <NRf>  
STATus:OPERation:NTR?  
STATus:OPERation:PTR?  
These commands set or read the value of the Operation NTR  
(Negative-Transition) and PTR (Positive-Transition) registers. These  
registers serve as polarity filters between the Operation Condition  
and Operation Event registers to cause the following actions:  
When a bit in the Operation NTR register is set to 1, then a 1-to-0  
transition of the corresponding bit in the Operation Condition  
register causes that bit in the Operation Event register to be set.  
When a bit of the Operation PTR register is set to 1, then a 0-to-1  
transition of the corresponding bit in the Operation Condition  
register causes that bit in the Operation Event register to be set.  
If the same bits in both NTR and PTR registers are set to 1, then  
any transition of that bit at the Operation Condition register sets  
the corresponding bit in the Operation Event register.  
If the same bits in both NTR and PTR registers are set to 0, then  
no transition of that bit at the Operation Condition register can  
set the corresponding bit in the Operation Event register.  
The Preset value are: NTR = 0; PTR = 32767  
STATus:QUEStionable[:EVENt]?  
This query returns the value of the Questionable Event register. The  
Event register is a read-only register, which stores (latches) all events  
that are passed by the Questionable NTR and/or PTR filter. Reading  
the Questionable Event register clears it. The bit configuration of the  
Questionable status registers is as follows:  
Bit Position  
Bit Value  
15-11 10  
9
8-5  
4
3
2
1
0
1024  
UNR  
512  
INH  
16  
OT  
4
2
1
Bit Name  
PF  
OC  
OV  
UNR = The output is unregulated  
INH = The output is turned off by one of the external J1 inhibit signals  
OT = The output is disabled by the over-temperature protection  
PF = The output is disabled because AC power has failed  
OC = The output is disabled by the over-current protection  
OV = The output is disabled by the over-voltage protection  
STATus:QUEStionable:CONDition?  
This query returns the value of the Questionable Condition register.  
That is a read-only register, which holds the real-time (unlatched)  
questionable status of the power supply.  
Series N5700 User’s Guide  
73  
Status Commands  
STATus:QUEStionable:ENABle <NRf>  
STATus:QUEStionable:ENABle?  
This command and its query set and read the value of the  
Questionable Enable register. This register is a mask for enabling  
specific bits from the Questionable Event register to set the  
questionable summary bit (QUES) of the Status Byte register. This bit  
(bit 3) is the logical OR of all the Questionable Event register bits that  
are enabled by the Questionable Status Enable register. The Preset  
value = 0.  
STATus:QUEStionable:NTR <NRf>  
STATus:QUEStionable:PTR <NRf>  
STATus:QUEStionable:NTR?  
STATus:QUEStionable:PTR?  
These commands set or read the value of the Questionable NTR  
(Negative-Transition) and PTR (Positive-Transition) registers. These  
registers serve as polarity filters between the Questionable Condition  
and Questionable Event registers to cause the following actions:  
When a bit of the Questionable NTR register is set to 1, then a 1-  
to-0 transition of the corresponding bit of the Questionable  
Condition register causes that bit in the Questionable Event  
register to be set.  
When a bit of the Questionable PTR register is set to 1, then a 0-  
to-1 transition of the corresponding bit in the Questionable  
Condition register causes that bit in the Questionable Event  
register to be set.  
If the same bits in both NTR and PTR registers are set to 1, then  
any transition of that bit at the Questionable Condition register  
sets the corresponding bit in the Questionable Event register.  
If the same bits in both NTR and PTR registers are set to 0, then  
no transition of that bit at the Questionable Condition register  
can set the corresponding bit in the Questionable Event register.  
The Preset values are: NTR = 0; PTR = 32767  
*CLS  
This command causes the following actions on the status system:  
Clears the Standard Event Status, Operation Status Event, and  
Questionable Status Event registers  
Clears the Status Byte and the Error Queue  
If *CLS immediately follows a program message terminator  
(<NL>), then the output queue and the MAV bit are also cleared.  
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Series N5700 User’s Guide  
Status Commands  
*ESE  
*ESE?  
This command programs the Standard Event Status Enable register  
bits. The programming determines which events of the Standard  
Event Status Event register (see *ESR?) are allowed to set the ESB  
(Event Summary Bit) of the Status Byte register. A "1" in the bit  
position enables the corresponding event.  
All of the enabled events of the Standard Event Status Event Register  
are logically OR-ed to cause the Event Summary Bit (ESB) of the  
Status Byte Register to be set. The query reads the Standard Event  
The query reads the Standard Event Status Enable register. The bit  
configuration of the Standard Event register is as follows:  
Bit Position  
Bit Value  
7
6
5
4
3
2
1
0
128  
PON  
32  
16  
EXE  
8
4
1
Bit Name  
CME  
DDE  
QUE  
OPC  
PON = Power-on has occurred  
CME = Command error  
EXE = Execution error  
DDE = Device-dependent error  
QUE = Query error  
OPC = Operation complete  
*ESR?  
This query reads the Standard Event Status Event register. Reading  
the register clears it. The bit configuration is the same as the  
Standard Event Status Enable register (see *ESE).  
*OPC  
*OPC?  
This command causes the instrument to set the OPC bit (bit 0) of the  
Standard Event Status register when the instrument has completed  
all pending operations. Pending operations are complete when:  
All commands sent before *OPC have been executed. This  
includes overlapped commands. Most commands are sequential  
and are completed before the next command is executed.  
Commands that affect output voltage, current or state, relays,  
and trigger actions are executed in parallel (or overlapped) with  
subsequent commands sent to the power supply. The *OPC  
command provides notification that all overlapped commands  
have been completed.  
All triggered actions are completed  
*OPC does not prevent processing of subsequent commands, but bit 0  
will not be set until all pending operations are completed.  
*OPC? causes the instrument to place an ASCII "1" in the Output  
Queue when all pending operations are completed. Unlike *OPC,  
*OPC? prevents processing of all subsequent commands. It can be  
used at the end of a command line so that the program can monitor  
the bus for data until it receives the "1" from the Output Queue.  
Series N5700 User’s Guide  
75  
Status Commands  
*SRE  
*SRE?  
This command sets the condition of the Service Request Enable  
Register. This register determines which bits from the Status Byte  
Register are allowed to set the Master Status Summary (MSS) bit and  
the Request for Service (RQS) summary bit. A 1 in any Service  
Request Enable Register bit position enables the corresponding  
Status Byte Register bit and all such enabled bits then are logically  
OR-ed to cause Bit 6 of the Status Byte Register to be set.  
When the controller conducts a serial poll in response to SRQ, the  
RQS bit is cleared, but the MSS bit is not. When *SRE is cleared (by  
programming it with 0), the power supply cannot generate an SRQ to  
the controller. The query returns the current state of *SRE.  
*STB?  
This query reads the Status Byte register, which contains the status  
summary bits and the Output Queue MAV bit. Reading the Status  
Byte register does not clear it. The input summary bits are cleared  
when the appropriate event registers are read. The MAV bit is cleared  
at power-on, by *CLS' or when there is no more response data  
available.  
A serial poll also returns the value of the Status Byte register, except  
that bit 6 returns Request for Service (RQS) instead of Master Status  
Summary (MSS). A serial poll clears RQS, but not MSS. When MSS is  
set, it indicates that the power supply has one or more reasons for  
requesting service.  
Bit Position  
Bit Value  
7
6
5
4
3
8
2
4
1 0  
128  
64  
32  
ESB  
16  
Bit Name  
OPER MSS  
(RQS)  
MAV  
QUES ERR  
OPER = Operation status summary  
MSS = Master status summary  
(RQS) = Request for service  
MAV = Message available  
QUES = Questionable status summary  
ERR = Error queue not empty  
ESB = Event status byte summary  
*WAI  
This command instructs the power supply not to process any further  
commands until all pending operations are completed. Pending  
operations are as defined under the *OPC command. *WAI can be  
aborted only by sending the power supply a Device Clear command.  
76  
Series N5700 User’s Guide  
System Commands  
System Commands  
System commands control system functions that are not directly  
related to output control, measurement, or status functions. Common  
commands are also used to control system functions.  
SYSTem:COMMunicate:RLSTate LOCal|REMote|RWLock  
SYSTem:COMMunicate:RLSTate?  
This command configures the remote/local state of the instrument  
according to the following settings.  
LOCal The instrument is set to front panel control (front panel keys are active).  
REMote The instrument is set to remote interface control (front panel keys are active).  
RWLock The front panel keys are disabled (the instrument can only be controlled via the  
remote interface).  
The remote/local state can also be set by interface commands over  
the GPIB and some other I/O interfaces. When multiple remote  
programming interfaces are active, the interface with the most  
recently changed remote/local state determines the instrument’s  
remote/local state.  
The remote/local state is unaffected by *RST or any SCPI commands  
other than SYSTem:COMMunicate:RLState. At power-on however, the  
communications setting always returns to LOCal.  
SYSTem:ERRor?  
This query returns the next error number and its corresponding  
message string from the error queue. The queue is a FIFO (first-in,  
first-out) buffer that stores errors as they occur. As it is read, each  
error is removed from the queue. When all errors have been read, the  
query returns 0, NO ERROR. If more errors are accumulated than the  
queue can hold, the last error in the queue will be -350, TOO MANY  
ERRORS (see Appendix C for error codes).  
SYSTem:VERSion?  
This query returns the SCPI version number to which the instrument  
complies. The returned value is of the form YYYY.V, where YYYY  
represents the year and V is the revision number for that year.  
*IDN?  
This query requests the power supply to identify itself. It returns a  
string of four fields separated by commas.  
Agilent Technologies  
Manufacturer  
xxxxxA  
0
<A.xx.xx>,<A.xx.xx>  
Model number followed by a letter suffix  
Zero or serial number if available  
Firmware revision, power supply revision  
Series N5700 User’s Guide  
77  
System Commands  
*OPT?  
This query requests the unit to identify any installed options. A 0  
indicates no options are installed.  
*RCL <NR1>  
This command restores the power supply to a state that was  
previously stored in memory locations 0 through 15 with the *SAV  
command. Note that you can only recall a state from a location that  
contains a previously-stored state.  
All saved instrument states are lost when the unit is turned off.  
NOTE  
*RST  
This command resets the power supply to a factory-defined state.  
This state is defined as follows. Note that *RST also forces an ABORt  
command. The *RST settings are as follows:  
CAL:STAT  
Off  
Off  
Off  
0
[SOUR:]CURR:PROT:STAT  
[SOUR:]VOLT  
Off  
INIT:CONT  
0
OUTP  
[SOUR:]VOLT:LIM  
[SOUR:]VOLT:TRIG  
[SOUR:]VOLT:PROT  
0
[SOUR:]CURR  
[SOUR:]CURR:TRIG  
0
0
MAXimum  
*SAV <NR1>  
This command stores the present state of the power supply to  
memory locations 0 through 15.  
All saved instrument states are lost when the unit is turned off.  
NOTE  
*TST?  
This query always returns a zero.  
78  
Series N5700 User’s Guide  
Trigger Commands  
Trigger Commands  
Trigger commands consist of the Abort, Trigger, and Initiate  
commands. Initiate commands initialize the trigger system. Trigger  
commands control the triggering of the power supply.  
ABORt  
This command cancels any trigger actions in progress and returns  
the trigger system to the IDLE state, unless INIT:CONT is enabled. It  
also resets the WTG bit in the Status Operation Condition register.  
ABORt is executed at power-on and upon execution of *RST.  
INITiate[:IMMediate][:TRANsient]  
This command controls the enabling of output triggers. When a  
trigger is enabled, a trigger causes the specified triggering action to  
occur. If the trigger system is not enabled, all triggers are ignored.  
INITiate:CONTinuous[:TRANsient] <Bool>  
INITiate:CONTinuous[:TRANsient]?  
This command continuously initiates output triggers. The enabled  
state is On (1); the disabled state is Off (0). When disabled, the trigger  
system must be initiated for each trigger with the INITiate command.  
TRIGger[:TRANsient][:IMMediate]  
If the trigger system has been initiated, this command generates an  
immediate output trigger. When sent, the output trigger will:  
Initiate an output change as specified by the CURR:TRIG or  
VOLT:TRIG settings.  
Clear the WTG bits in the Status Operation Condition register  
after the trigger action has completed.  
TRIGger:SOURce BUS  
TRIGger:SOURce?  
This command selects the trigger source for the output trigger  
system. Only BUS can be selected as the trigger source.  
*TRG  
This command generates a trigger when the trigger source is set to  
BUS. The command has the same affect as the Group Execute Trigger  
(<GET>) command.  
Series N5700 User’s Guide  
79  
6
Programming Examples  
Output Programming Example 82  
Trigger Programming Example 83  
This chapter contains several remote interface example programs to  
help you develop programs for your own application. Chapter 5,  
“Language Reference” lists the syntax for the SCPI (Standard  
Commands for Programmable Instruments).  
You have a royalty-free right to use, modify, reproduce and distribute  
the example programs (and/or any modified version) in any way you  
find useful, provided that you agree that Agilent Technologies has no  
warranty, obligations, or liability for any example programs.  
The example programs are in Microsoft Visual BASIC 6.0 using the  
VISA COM IO library. You must first load the VISA COM library to  
use these examples. The VISA COM IO library is available with  
version M or later of the Agilent IO libraries for Windows.  
Before using the example code in Visual BASIC, you must reference two VISA  
COM objects. In Visual BASIC, go to Projects>References and select Agilent  
VISA COM Resource Manager 1.0 (filename= AgtRM.dll) and VISA COM 1.0  
Type Library (filename = VisaCom.tlb). To use this sample code in Visual Basic  
.NET, see the VISA COM documentation to reference VISA COM in a Visual  
BASIC project. Copy the code provided in this chapter and call the subroutine  
for each example.  
NOTE  
Microsoft, and Visual BASIC, and Windows are U.S. registered trademarks of Microsoft  
Corporation.  
Series N5700 User’s Guide  
81  
Output Programming Example  
Output Programming Example  
This program sets the voltage, current, over-voltage, and the over-  
current protection. When done, the program checks for instrument  
errors and gives a message if there is an error.  
Sub main_EZ()  
Dim IDN As String  
Dim IOaddress As String  
Dim ErrString As String  
' This variable controls the voltage  
Dim VoltSetting As Double  
' This variable measures the voltage  
Dim MeasureVoltString As String  
' This variable controls the current  
Dim CurrSetting As Double  
' This variable controls the over voltage protection setting  
Dim overVoltSetting As Double  
' This variable controls the over current protection  
Dim overCurrentOn As Long  
' These variables are necessary to initialize the VISA COM  
Dim ioMgr As AgilentRMLib.SRMCls  
Dim Instrument As VisaComLib.FormattedIO488  
' The following line provides the VISA name of the GPIB interface  
IOaddress = "GPIB0::5::INSTR"  
' Use the following line instead for LAN communication  
' IOaddress="TCPIP0::141.25.36.214"  
' Use the following line instead for USB communication  
' IOaddress = "USB0::2391::1799::US00000002"  
' Initialize the VISA COM communication  
Set ioMgr = New AgilentRMLib.SRMCls  
Set Instrument = New VisaComLib.FormattedIO488  
Set Instrument.IO = ioMgr.Open(GPIBaddress)  
VoltSetting = 3  
' volts  
CurrSetting = 1.5  
overVoltSetting = 10  
overCurrentOn = 1  
' amps  
' volts  
' 1 for on, 0 for off  
With Instrument  
' Send a power reset to the instrument  
.WriteString "*RST"  
' Query the instrument for the IDN string  
.WriteString "*IDN?"  
IDN = .ReadString  
' Set the voltage  
.WriteString "VOLT" & Str$(VoltSetting)  
82  
Series N5700 User’s Guide  
Trigger Programming Example  
' Set the over voltage level  
.WriteString "VOLT:PROT:LEV " & Str$(overVoltSetting)  
' Set the current level  
.WriteString "CURR " & Str$(CurrSetting)  
' Turn on over current protection  
.WriteString "CURR:PROT:STAT " & Str$(overCurrentOn)  
' Turn the output on  
.WriteString "OUTP ON"  
' Measure the voltage  
.WriteString "MEAS:VOLT?"  
MeasureVoltString = .ReadString  
MsgBox "Measured Voltage is " & MeasureVoltString  
' Check instrument for any errors  
.WriteString "Syst:err?"  
ErrString = .ReadString  
' Give message if there is an error  
If Val(ErrString) Then  
MsgBox "Error in instrument!" & vbCrLf & ErrString  
End If  
End With  
End Sub  
Trigger Programming Example  
This example illustrates how to set up and trigger an output voltage  
change. The voltage is measured before and after the trigger.  
Sub main_Trig()  
Dim IDN As String  
Dim IOaddress As String  
Dim ErrString As String  
Dim msg1 As String  
' This variable controls the voltage  
Dim VoltSetting As Double  
' This variable measures the voltage  
Dim MeasureVoltString As String  
' This variable controls the current  
Dim CurrSetting As Double  
' This variable controls the triggered voltage setting  
Dim trigVoltSetting As Double  
' These variables are necessary to initialize the VISA COM  
Dim ioMgr As AgilentRMLib.SRMCls  
Dim Instrument As VisaComLib.FormattedIO488  
' The following line provides the VISA name of the GPIB interface  
IOaddress = "GPIB0::5::INSTR"  
' Use the following line instead for LAN communication  
' IOaddress="TCPIP0::141.25.36.214"  
Series N5700 User’s Guide  
83  
Trigger Programming Example  
' Use the following line instead for USB communication  
' IOaddress = "USB0::2391::1799::US00000002"  
' Initialize the VISA COM communication  
Set ioMgr = New AgilentRMLib.SRMCls  
Set Instrument = New VisaComLib.FormattedIO488  
Set Instrument.IO = ioMgr.Open(GPIBaddress)  
VoltSetting = 3  
CurrSetting = 1.5  
trigVoltSetting = 5  
' volts  
' amps  
' volts  
With Instrument  
' Send a power reset to the instrument  
.WriteString "*RST"  
' Query the instrument for the IDN string  
.WriteString "*IDN?"  
IDN = .ReadString  
' Set the voltage  
.WriteString "VOLT" & Str$(VoltSetting)  
' Set the current level  
.WriteString "CURR " & Str$(CurrSetting)  
' Set the triggered voltage level  
.WriteString "VOLT:TRIG " & Str$(trigVoltSetting)  
' Turn the output on  
.WriteString "OUTP ON"  
' Measure the voltage before triggering the change  
.WriteString "MEAS:VOLT?"  
MeasureVoltString = .ReadString  
' Save the value for later display  
msg1 = "Voltage before trigger = " & MeasureVoltString  
' Initiate the trigger system and send the trigger  
.WriteString "INIT"  
.WriteString "*TRG"  
' Measure the voltage after triggering the change  
.WriteString "MEAS:VOLT?"  
MeasureVoltString = .ReadString  
' Display the measured values  
MsgBox msg1 + Chr$(13) + "Voltage after trigger = " & MeasureVoltString  
' Check instrument for any errors  
.WriteString "Syst:err?"  
ErrString = .ReadString  
' Give message if there is an error  
If Val(ErrString) Then  
MsgBox "Error in instrument!" & vbCrLf & ErrString  
End If  
End With  
End Sub  
84  
Series N5700 User’s Guide  
A
Specifications  
Performance Specifications 86  
Supplemental Characteristics 87  
Outline Diagram 89  
This chapter lists the specifications and supplemental characteristics  
of the Agilent N5700 power supplies. A dimensional line drawing of  
the unit is included at the end of the chapter.  
Unless otherwise noted, specifications are warranted over the  
ambient temperature range of 0 to 40°C. Sensing is at the rear  
terminals of the power supply after a 30-minute warm-up period.  
Sense terminals are externally jumpered to their respective output  
terminals.  
Supplemental characteristics are not warranted but are descriptions  
of typical performance determined either by design or type testing.  
Series N5700 User’s Guide  
85  
Performance Specifications  
Performance Specifications  
Agilent Models N5741A – N5752A and N5761A – N5772A  
Model (V rating)  
6V  
8V  
12.5V  
20V  
30V  
40V  
60V  
80V  
100V  
150V  
300V  
600V  
DC Output Ratings:  
Voltage  
6V  
8V  
12.5V  
60A  
20V  
38A  
30V  
25A  
40V  
19A  
60V  
12.5A  
25A  
80V  
9.5A  
19A  
100V  
7.5A  
15A  
150V  
5A  
300V  
2.5A  
5A  
600V  
1.3A  
Current 750W  
Current 1500W  
Power 750W  
100A  
180A  
90A  
165A  
120A  
750W  
76A  
50A  
38A  
10A  
2.6A  
600W 720W  
760W  
750W  
760W  
750W  
760W  
750W  
750W  
750W  
780W  
Power 1500W  
1080W 1320W 1500W 1520W 1500W 1520W 1500W 1520W 1500W 1500W 1500W 1560W  
Output Ripple and Noise:  
CV p-p 1  
CV rms 2  
60mV 60mV  
8mV 8mV  
60mV  
8mV  
60mV  
8mV  
60mV  
8mV  
60mV  
8mV  
60mV  
8mV  
80mV  
8mV  
80mV  
8mV  
100mV 150mV 300mV  
12mV  
20mV  
60mV  
Load Effect: (change from no load to full load)  
Voltage  
2.6mV 2.8mV 3.25mV  
4mV  
5mV  
6mV  
8mV  
10mV  
6.9mA  
8.8mA  
12mV  
6.5mA  
8mA  
17mV  
6mA  
7mA  
32mV  
62mV  
Current 750W  
Current 1500W  
25mA 23mA  
41mA 38mA  
17mA 12.6mA 10mA  
8.8mA  
7.5mA  
5.5mA 5.26mA  
29mA 20.2mA 15mA 12.6mA 10mA  
6mA  
5.5mA  
Source Effect: (change from 85-132 VAC input or 170-265 VAC input)  
Voltage  
2.6mV 2.8mV 3.25mV  
12mA 11mA 8mA  
20mA 18.5mA 14mA  
4mV  
5mV  
4.5mA  
7mA  
6mV  
8mV  
10mV  
12mV  
17mV  
32mV  
62mV  
Current 750W  
Current 1500W  
5.8mA  
9.6mA  
3.9mA 3.25mA 2.95mA 2.75mA 2.5mA 2.25mA 2.13mA  
5.8mA  
20mV  
4.5mA  
30mV  
3.9mA  
40mV  
3.5mA  
3mA  
2.5mA 2.26mA  
Programming Accuracy:  
Voltage 0.05%+ 3mV  
4mV 6.25mV 10mV  
15mV  
25mA  
50mA  
50mV  
7.5mA  
15mA  
75mV  
5mA  
150mV 300mV  
Current 750W 0.1%+ 100mA 90mA  
60mA  
38mA  
19mA 12.5mA 9.5mA  
2.5mA  
5mA  
1.3mA  
2.6mA  
Current 1500W 0.1%+ 180mA 165mA 120mA 76mA  
38mA  
40mV  
25mA  
60mV  
19mA  
80mV  
10mA  
Measurement Accuracy:  
Voltage  
0.1%+  
6mV  
8mV 12.5mV 20mV  
30mV  
100mV 150mV 300mV 600mV  
Current 750W 0.1%+ 300mA 270mA 180mA 114mA 75mA  
57mA 37.5mA 28.5mA 22.5mA 15mA  
7.5mA  
15mA  
3.9mA  
7.8mA  
Current 1500W 0.1%+ 540mA 495mA 360mA 228mA 150mA 114mA 75mA  
57mA  
45mA  
30mA  
Load Transient Recovery Time:  
(time for output voltage to recover within 0.5% of its rated output for a load change from 10 to 90% of its rated output current)  
Time  
1.2ms 1.2ms 1.2ms 1ms  
1ms  
1ms  
1ms  
1ms  
1ms  
2ms  
2ms  
2ms  
Voltage set point  
from 10% to 100% of rated output  
NOTE 1 20MHz  
NOTE 2 From 5Hz - 1MHz  
86  
Series N5700 User’s Guide  
Supplemental Characteristics  
Supplemental Characteristics  
Agilent Models N5741A – N5752A and N5761A – N5772A  
Model (V rating)  
6V  
8V  
12.5V  
20V  
30V  
40V  
60V  
80V  
100V  
150V  
300V  
600V  
Output Response Time: (to settle to within 0.5% of the rated output, with a resistive load)  
Up, full load  
Down, full load  
Down, no load  
0.08s  
0.01s  
0.5s  
0.08s  
0.05s  
0.6s  
0.08s  
0.05s  
0.7s  
0.08s  
0.05s  
0.8s  
0.08s  
0.08s  
0.9s  
0.08s  
0.08s  
1.0s  
0.08s  
0.08s  
1.1s  
0.15s  
0.15s  
1.2s  
0.15s  
0.15s  
1.5s  
0.15s  
0.15s  
2.0s  
0.15s  
0.15s  
2.5s  
0.25s  
0.30s  
4s  
Command Response Time: (add this to the output response time to obtain the total programming time)  
100 ms  
Remote Sense Compensation:  
Volts/load lead  
1V  
1V  
1V  
1V  
1.5V  
2V  
3V  
4V  
5V  
5V  
5V  
5V  
Over-voltage Protection:  
0.5-7.5V 0.5-10V  
1-15V  
1-24V  
0.20V  
2-36V  
0.30V  
2-44V  
0.40V  
5-66V  
0.60V  
5-88V  
0.80V  
5-110V  
1V  
5-165v  
1.5V  
5-330V  
3V  
5-660V  
6V  
Range  
Accuracy  
0.06V 0.08V 0.125V  
Output Ripple and Noise: (From 5Hz-1MHz, at 10% to 100% of output voltage at full load (for 6V units from 33% to 100% of output voltage)  
CC rms 750W  
CC rms 1500W  
200mA 180mA 120mA 76mA  
63mA  
48mA  
38mA  
75mA  
29mA  
57mA  
23mA  
45mA  
18mA  
35mA  
13mA  
25mA  
8mA  
360mA 330mA 240mA 152mA 125mA 95mA  
12mA  
Programming Resolution:  
Measurement Resolution:  
Voltage  
Current 750W  
Current 1500W  
0.72mV 0.96mV 1.5mV 2.4mV  
12mA 10.8mA 7.2mA 4.56mA  
21.6mA 19.8mA 14.4mA 9.12mA  
3.6mV  
3mA  
6mA  
4.8mV  
2.3mA  
4.6mA  
7.2mV  
9.6mV  
12mV  
18mV  
0.6mA  
1.2mA  
36mV  
0.3mA 0.156mA  
0.6mA 0.312mA  
72mV  
1.5mA 1.14mA 0.9mA  
3mA  
2.28mA 1.8mA  
Front Panel Display Accuracy: (4 digits; 1 count)  
Voltage  
3mV  
4mV 6.25mV 10mV  
15mV  
20mV  
30mV  
40mV  
50mV  
75mV  
150mV 300mV  
Current 750W  
Current 1500W  
50mA 45mA 30mA  
90mA 82.5mA 60mA  
19mA 12.5mA 9.5mA 6.25mA 4.75mA 3.75mA 2.5mA 1.25mA 6.5mA  
38mA 25mA 19mA 12.5mA 9.5m 7.5mA 5mA 2.5m 1.3mA  
Temperature Drift: (over 8 hours, after a 30 minute warm-up, with constant line, load, and temperature)  
Voltage  
Current 750W  
Current 1500W  
3mV  
4mV 6.25mV 10mV  
15mV  
19mA 12.5mA 9.5mA 6.25mA 4.75mA 3.75mA 2.5mA 1.25mA 6.5mA  
38mA 25mA 19mA 12.5mA 9.5m 7.5mA 5mA 2.5m 1.3mA  
20mV  
30mV  
40mV  
50mV  
75mV  
150mV 300mV  
50mA 45mA 30mA  
90mA 82.5mA 60mA  
Temperature Coefficient: (after a 30 minute warm-up)  
Voltage and Current 100PPM/°C from rated output voltage or current  
Analog Programming and Monitoring:  
Vout voltage  
Iout voltage  
Vout resistance  
Iout resistance  
Iout monitor  
0 - 100%, 0-5V/10V, user selectable, Accuracy & linearity = +/-0.5% of rated Vout  
0 - 100%, 0-5V/10V, user selectable, Accuracy & linearity = +/-1% of rated Iout  
0 - 100%, 0-5k/10k, user selectable, Accuracy & linearity = +/-1% of rated Vout  
0 - 100%, 0-5k/10k, user selectable, Accuracy & linearity = +/-1.5% of rated Iout  
0-5V/10V, user selectable, Accuracy = 1%  
Vout monitor  
On/Off control  
PS OK signal  
CV/CC signal  
Enable/Disable  
0-5V/10V, user selectable, Accuracy = 1%  
Electrical voltage; 0-6V/2-15V or dry contact, user selectable logic  
5V = OK; 0V = FAIL; 500series resistance  
CV = TTL high (4-5V) source current 10mA; CC = TTL high (4-5V) sink current 10mA  
Dry contact. Open=Off, Short=On. Maximum voltage at terminal= 6V.  
Series N5700 User’s Guide  
87  
Supplemental Characteristics  
Agilent Models N5741A – N5752A and N5761A – N5772A  
Model (V rating)  
6V  
8V  
12.5V  
20V  
30V  
40V  
60V  
80V  
100V  
150V  
300V  
600V  
Series and Parallel Capability:  
Parallel operation  
Series operation  
Up to 4 units can be connected in master/slave mode with single–wire current balancing  
Up to 2 units can be connected using external protection diodes  
Output Terminal Isolation:  
6V to 60V units  
No output terminal may be more than +/- 60 VDC from any other terminal or chassis ground  
No output terminal may be more than +/- 600 VDC from any other terminal or chassis ground  
80V to 600V units  
Savable states:  
In volatile memory  
16 (in memory locations 0-15)  
Interface Capabilities:  
GPIB  
USB 2.0  
SCPI - 1993, IEEE 488.2 compliant interface  
Requires Agilent I/O Library version L.01.01  
Requires Agilent I/O library version L.01.01  
10/100 LAN  
Environmental Conditions:  
Environment  
Indoor use, installation category II (AC input), pollution degree 2  
Operating temp.  
Storage temp.  
Operating humidity  
Storage humidity  
Altitude  
0°C to 40°C @ 100% load  
–20°C to 70°C  
30% to 90% relative humidity (no condensation)  
10% to 95% relative humidity (no condensation)  
Up to 3000 meters. Derate the output current by 2%/100m above 2000m.  
Derate the maximum ambient temperature by 1°C/100m above 2000m.  
Regulatory Compliance:  
IEC 348, UL 1244, and CSA 22.2 No. 231.  
RFI (conducted & radiated): Level A  
Any LEDs used in this product are Class 1 as per IEC 825-1  
This ISM device complies with Canadian ICES-001. Cet appareil ISM est conforme à la norme NMB-001 du Canada.  
Acoustic Noise Declaration:  
Statements provided to comply with requirements of the German Sound Emission Directive, from 18 January 1991:  
Sound Pressure Lp <70 dB(A), * At Operator Position, * Normal Operation, * According to EN 27779 (Type Test).  
Schalldruckpegel Lp <70 dB(A) * Am Arbeitsplatz, * Normaler Betrieb, * Nach EN 27779 (Typprüfung).  
AC Input:  
Nominal Input  
Input Current 750W  
100 – 240 VAC; 50/60Hz  
10.5A @ 100 VAC nominal; 5A @ 200 VAC nominal  
Input Current 1500W 21A @ 100 VAC nominal; 11A @ 200 VAC nominal  
Input Range  
Power Factor  
Efficiency  
85 – 265 VAC; 47 – 63 Hz.  
0.99 at nominal input and rated output power  
76% – 87% for 750W units; 77% – 88% for 1500W units  
< 25A for 750W units; < 50 A for 1500W units  
Inrush Current  
88  
Series N5700 User’s Guide  
                                                
                                                  
Outline Diagram  
Outline Diagram  
VOLTAGE  
DC VOLTS  
DC AMPS  
CURRENT  
I
ꢀA  
N5749A100V/7.5A 750W  
System DC Power Supply  
OVP  
PROT FINE LIMIT UVL OCP REM OUT ON  
43.6mm  
O
POWER  
482.8+/-1.0mm  
422.8+/-1.0mm  
10/100 Ethernet  
TX  
LINK  
+V  
-V  
GPIB  
J1  
SW1  
ON  
J2  
OFF  
1
2
3
4
5
6
7
8
9
ANALOG PROGRAMMING  
+S+LSNC-LC-S  
NOT ACTIVE  
AC INPUT  
507.0+/-1.0mm  
A
A
A
92.0+/-0.5  
92.0+/-0.5  
57.8+/-0.5  
433+/-1.0mm  
Strain-Relief Detail  
1500W Models  
Bus-Bar Detail  
6V to 60V Models  
3.0mm  
22.0mm  
8.5mm  
30.0mm  
NOTES:  
Holes marked “A” are for chassis slide mounting.  
Use only screws designated #10-32x0.38” maximum.  
Series N5700 User’s Guide  
89  
B
Verification and Calibration  
Verification 92  
Calibration 111  
The verification procedures described in this appendix verify that the  
power supply is operating normally and is within published  
specifications.  
This appendix also includes calibration procedures for the Agilent  
N5700 power supplies. Instructions are given for performing the  
procedures from a controller over the GPIB.  
Perform the verification tests before calibrating your power supply. If the power  
supply passes the verification tests, the unit is operating within its calibration  
limits and does not need to be re-calibrated.  
NOTE  
The recommended calibration interval for Agilent N5700 power  
supplies is one year.  
Series N5700 User’s Guide  
91  
Verification  
Verification  
Verification procedures verify that the power supply is operating  
normally and is within published specifications. There are two types  
of verification tests:  
Performance  
Calibration  
These tests verify that the power supply meets all of the specifications listed  
in Appendix A. They can also be used to verify that the power supply is  
properly calibrated.  
These procedures calibrate the power supply.  
If the power supply fails any of the tests or if abnormal test results  
are obtained, try calibrating the unit. If calibration is unsuccessful,  
return the unit to an Agilent Technologies repair facility (see  
Appendix D).  
Equipment Required  
The equipment listed in the following table, or the equivalent to this  
equipment, is required for the calibration and performance tests. A  
test record sheet may be found at the back of this section.  
Type  
Specifications  
Recommended Model  
Digital Voltmeter  
Resolution: 10 nV @ 1V;  
Readout: 8 1/2 digits  
Accuracy: 20 ppm  
Agilent 3458A or equivalent  
Current Monitor  
Load Resistor  
15 A (0.1) 0.04%, TC=5ppm/°C  
100 A (0.01) 0.04%, TC=5ppm/°C  
300 A (0.001) 0.04%, TC=5ppm/°C  
Guildline 9230/15  
Guildline 9230/100  
Guildline 9230/300  
For 750 W models:  
0.06, 0.09, 0.21, 0.53, 1.20, 2.11, 4.80, 8.42,  
13.33, 30.0, 120, 462- all resistors 1kW minimum.  
For 1500 W models:  
0.03, 0.04, 0.10, 0.26, 0.60, 1.05, 2.40, 4.21,  
6.67, 15.0, 60, 231- all resistors 2kW minimum.  
Electronic Load  
150 V, 100 A minimum (for Models N5741- N5750A)  
150 V, 180 A minimum (for Models N5761- N5770A)  
Agilent N3300A mainframe,  
with 3 - N3305A modules  
GPIB Controller  
Oscilloscope  
Full GPIB capabilities (for calibrating the unit over the GPIB) Agilent 82350B or equivalent  
Sensitivity: 1 mV  
Agilent Infiniium or  
equivalent  
Bandwidth Limit: 20 MHz  
Probe: 1:1 with RF tip  
RMS Voltmeter  
True RMS  
Bandwidth: 20 MHz  
Sensitivity: 100 µV  
Rhode and Schwartz Model  
URE3 or equivalent  
Differential Amplifier  
Terminations  
Bandwidth: 20 MHz  
LaCroy 1855A, DA1850A,  
or equivalent  
1 – 50BNC termination  
2 – 50, 1/8 W termination resistors  
Variable-voltage xfmr  
or AC source  
Adjustable to highest rated input voltage range.  
Power: 2000 VA  
Agilent 6813B or equivalent  
92  
Series N5700 User’s Guide  
Verification  
Measurement Techniques  
Electronic Load  
Many of the test procedures require the use of a variable load capable  
of dissipating the required power. If a variable resistor is used,  
switches should be used to either; connect, disconnect, or short the  
load resistor. For most tests, an electronic load can be used. The  
electronic load is considerably easier to use than load resistors, but it  
may not be fast enough to test transient recovery time and may be  
too noisy for the noise (PARD) tests.  
Fixed load resistors may be used in place of a variable load, with  
minor changes to the test procedures. Also, if computer controlled  
test setups are used, the relatively slow (compared to computers and  
system voltmeters) settling times and slew rates of the power supply  
may have to be taken into account. "Wait" statements can be used in  
the test program if the test system is faster than the power supply.  
Current-Monitoring Resistor  
The 4-terminal current shunt is used to eliminate output current  
measurement error caused by voltage drops in the load leads and  
connections. It has special current-monitoring terminals inside the  
load connection terminals. Connect the voltmeter directly to these  
current-monitoring terminals.  
Test Set-up  
The following figure illustrates the test set-up used for the  
verification procedures.  
Power Supply  
Power Supply  
Power Supply  
+S +LS -LS -S  
+S +LS -LS -S  
+S +LS -LS -S  
+V -V  
+V -V  
+V -V  
Load  
Resistor  
+
+
DC voltmeter,  
scope, or  
DC voltmeter,  
scope, or  
Current  
shunt  
50  
50  
rms voltmeter  
rms voltmeter  
BNC  
BNC  
+
Differential  
amplifier  
+
+
Electronic load  
or resistor  
Electronic load  
or resistor  
A.  
B.  
output  
BNC  
50 ohm  
termination  
input  
Scope or  
rms voltmeter  
C.  
Series N5700 User’s Guide  
93  
Verification  
Constant Voltage Tests  
Refer to the appropriate test record form for the instrument settings of the  
model you are checking.  
NOTE  
Voltage Programming and Readback Accuracy  
Test category = performance, calibration  
This test verifies that the voltage programming and measurement  
functions are within specifications.  
1
Turn off the power supply and connect a DVM directly across the  
+S and -S terminals as shown in figure A. Do not connect a load.  
2
Turn on the power supply and program the output voltage to zero  
and the output current to its maximum programmable value  
(Imax) with the load off. The CV annunciator should be on and  
the output current reading should be approximately zero.  
3
Record the output voltage readings on the digital voltmeter  
(DVM) and the front panel display. The readings should be within  
the limits specified in the test record card for the appropriate  
model under Voltage Programming and Readback @ 0 V.  
4
5
Program the output voltage to its full-scale rating.  
Record the output voltage readings on the DVM and the front  
panel display. The readings should be within the limits specified  
in the test record card for the appropriate model under Voltage  
Programming and Readback @ Full Scale.  
CV Load Effect  
Test category = performance  
This test measures the change in output voltage resulting from a  
change in output current from full load to no load.  
1
Turn off the power supply and connect a DVM and an electronic  
load as shown in figure A.  
2
Turn on the power supply and program the output current to its  
maximum programmable value (Imax) and the output voltage to  
its full-scale value.  
3
Set the electronic load for the output’s full-scale current. The CV  
annunciator on the front panel must be on. If it is not, adjust the  
load so that the output current drops slightly.  
4
5
Record the output voltage reading from the DVM.  
Open the load and record the voltage reading from the DVM  
again. The difference between the DVM readings in steps 4 and 5  
is the load effect, which should not exceed the value listed in the  
test record card for the appropriate model under CV Load Effect.  
94  
Series N5700 User’s Guide  
Verification  
CV Source Effect  
Test category = performance  
This test measures the change in output voltage that results from a  
change in AC line voltage from the minimum to maximum value  
within the line voltage specifications.  
1
2
3
Turn off the power supply and connect the ac power line through  
a variable voltage transformer.  
Connect a DVM and an electronic load as shown in figure A. Set  
the variable voltage transformer to nominal line voltage.  
Turn on the power supply and program the output current to its  
maximum programmable value (Imax) and the output voltage to  
its full-scale value.  
4
5
Set the electronic load for the output’s full-scale current. The CV  
annunciator on the front panel must be on. If it is not, adjust the  
load so that the output current drops slightly.  
Adjust the transformer to the low-line voltage (85 VAC for  
100/120 nominal line; 170 VAC for 200/240 nominal line).  
6
7
Record the output voltage reading from the DVM.  
Adjust the transformer to the high-line voltage (132 VAC for  
100/120 nominal line; 265 VAC for 200/240 nominal line).  
8
Record the output voltage reading on the DVM. The difference  
between the DVM reading in steps 6 and 8 is the source effect,  
which should not exceed the value listed in the test record card  
for the appropriate model under CV Source Effect.  
CV Noise  
Test category = performance  
Periodic and random deviations in the output combine to produce a  
residual AC voltage superimposed on the DC output voltage. This  
residual voltage is specified as the rms or peak-to-peak output  
voltage in the frequency range specified in Appendix A.  
1
Turn off the power supply and connect the load resistor,  
differential amplifier, and an oscilloscope (ac coupled) to the  
output as shown in figure C. Use the xx load for 750 W outputs;  
use the xx load for 1500 W outputs.  
2
As shown in the diagram, use two BNC cables to connect the  
differential amplifier to the + and output terminals. Each cable  
should be terminated by a 50 resistor. The shields of the two  
BNC cables should be connected together. Connect the output of  
the differential amplifier to the oscilloscope with a 50 Ω  
termination at the input of the oscilloscope.  
3
Set the differential amplifier to multiply by ten, divide by one,  
and 1 Megohm input resistance. The positive and negative inputs  
of the differential amplifier should be set to AC coupling. Set the  
oscilloscope’s time base to 5 ms/div, and the vertical scale to 10  
mV/div. Turn the bandwidth limit on (usually 20 or 30 MHz), and  
set the sampling mode to peak detect.  
Series N5700 User’s Guide  
95  
Verification  
4
Program the power supply to program the output current to its  
maximum programmable value (Imax) and the output voltage to  
its full-scale value and enable the output. Let the oscilloscope run  
for a few seconds to generate enough measurement points. On  
the Agilent Infiniium scope, the maximum peak-to-peak voltage  
measurement is indicated at the bottom of the screen on the right  
side. Divide this value by 10 to get the CV peak-to-peak noise  
measurement. The result should not exceed the peak-to-peak  
limits in the test record form for the appropriate model under CV  
Ripple and Noise, peak-to-peak.  
(If the measurement contains any question marks, clear the  
measurement and try again. This means that some of the data  
received by the scope was questionable.)  
5
Disconnect the oscilloscope and connect an ac rms voltmeter in  
its place. Do not disconnect the 50 termination. Divide the  
reading of the rms voltmeter by 10. The result should not exceed  
the rms limits in the test record card for the appropriate model  
under CV Ripple and Noise - rms.  
Transient Recovery Time  
Test category = performance  
This measures the time for the output voltage to recover to within the  
specified value following a 10% to 90% change in the load current.  
1
Turn off the power supply and connect the output as in figure A  
with the oscilloscope across the +S and -S terminals.  
2
Turn on the power supply and program the output current to its  
maximum programmable value (Imax) and the output voltage to  
its full-scale value. Do not program voltages greater than 200  
VDC when testing the 300 and 600 volt models.  
3
Set the electronic load to operate in constant current mode.  
Program its load current to 10% of the power supply’s full-scale  
current value.  
4
5
6
7
Set the electronic load's transient generator frequency to 100 Hz  
and its duty cycle to 50%.  
Program the load's transient current level to 90% of the power  
supply's full-scale current value. Turn the transient generator on.  
Adjust the oscilloscope for a waveform similar to that shown in  
the following figure.  
The output voltage should return to within the specified voltage  
in the specified time following the 10% to 90% load change. Check  
both loading and unloading transients by triggering on the  
positive and negative slope. Record the voltage at time “t” in the  
performance test record card under Transient Response.  
Loading  
tttt  
Transient  
t
v
v
t
Unloading  
Transient  
96  
Series N5700 User’s Guide  
Verification  
Constant Current Tests  
Refer to the appropriate test record form for the instrument settings of the  
model you are checking.  
NOTE  
Current Programming and Readback Accuracy  
Test category = performance, calibration  
This test verifies that the current programming and measurement  
functions are within specifications.  
1
Turn off the power supply and connect the current shunt directly  
across the output. Connect the DVM across the current shunt.  
2
Turn on the power supply and program the output voltage to its  
full-scale value and the output current to zero. The CC  
annunciator should be on and the output voltage reading should  
be approximately zero.  
3
Divide the voltage drop (DVM reading) across the current shunt  
by its resistance to convert to amps and record this value (Iout).  
Also record the current reading on the front panel display. The  
readings should be within the limits specified in the test record  
card for the appropriate model under Current Programming and  
Readback @ 0 A.  
4
5
Program the output current to its full-scale rating.  
Divide the voltage drop (DVM reading) across the current shunt  
by its resistance to convert to amps and record this value (Iout).  
Also record the current reading on the front panel display. The  
readings should be within the limits specified in the test record  
card for the appropriate model under Current Programming and  
Readback @ Full Scale.  
CC Load Effect  
Test category = performance  
This test measures the change in output current resulting from a  
change in output voltage from full scale to short circuit.  
1
Turn off the power supply and connect the current shunt, DVM,  
and electronic load as shown in figure B. Connect the DVM  
directly across the current shunt.  
2
To ensure that the values read during this test are not the  
instantaneous measurement of the AC peaks of the output  
current ripple, several DC measurements should be made and  
averaged. If you are using an Agilent 3458A, you can set up the  
voltmeter to do this automatically. From the instrument’s front  
panel, program 100 power line cycles per measurement. Press  
NPLC 100 ENTER.  
3
Turn on the power supply and program the output current to its  
full-scale value and the output voltage to its maximum  
programmable value (Vmax).  
Series N5700 User’s Guide  
97  
Verification  
4
5
6
With the electronic load in CV mode, set it for the output’s full-  
scale voltage. The CC annunciator on the front panel must be on.  
If it is not, adjust the load so that the voltage drops slightly.  
Divide the voltage drop (DVM reading) across the current  
monitoring resistor by its resistance to convert to amps and  
record this value (Iout).  
Short the electronic load. Divide the voltage drop (DVM reading)  
across the current shunt by its resistance to convert to amps and  
record this value (Iout). The difference in the current readings in  
steps 4 and 5 is the load effect, which should not exceed the  
value listed in the test record card for the appropriate model  
under CC Load Effect.  
CC Source Effect  
Test category = performance  
This test measures the change in output current that results from a  
change in AC line voltage from the minimum to maximum value  
within the line voltage specifications.  
1
Turn off the power supply and connect the ac power line through  
a variable voltage transformer or AC source.  
2
Connect the current shunt, DVM, and electronic load as shown in  
figure B. Connect the DVM directly across the current shunt. Set  
the variable voltage transformer to nominal line voltage.  
3
To ensure that the values read during this test are not the  
instantaneous measurement of the AC peaks of the output  
current ripple, several DC measurements should be made and  
averaged. If you are using an Agilent 3458A, you can set up the  
voltmeter to do this automatically. From the instrument’s front  
panel, program 100 power line cycles per measurement. Press  
NPLC 100 ENTER.  
4
5
Turn on the power supply and program the output current to its  
full-scale value and the output voltage to its maximum  
programmable value (Vmax).  
With the electronic load in CV mode, set it for the output’s full-  
scale voltage. The CC annunciator on the front panel must be on.  
If it is not, adjust the load so that the voltage drops slightly.  
6
7
Adjust the transformer to the lowest rated line voltage (85 VAC  
for 100/120 nominal line; 170 VAC for 200/240 nominal line).  
Divide the voltage drop (DVM reading) across the current  
monitoring resistor by its resistance to convert to amps and  
record this value (Iout).  
8
9
Adjust the transformer to the highest rated line voltage (132 VAC  
for 100/120 nominal line; 265 VAC for 200/240 nominal line).  
Divide the voltage drop (DVM reading) across the current shunt  
by its resistance to convert to amps and record this value (Iout).  
The difference between the DVM reading in steps 6 and 8 is the  
source effect, which should not exceed the value listed in the test  
record card for the appropriate model under CC Source Effect.  
98  
Series N5700 User’s Guide  
Verification  
Test Record Form – Agilent N5741A and N5761A  
Agilent N5741A and N5761A  
Report No _______________  
Date __________________  
Model  
Minimum Specs.  
Results  
Maximum Specs.  
Voltage Programming & Readback  
Minimum Voltage Vout  
Front Panel Display Readback  
Both  
Both  
3 mV  
Vout 6 mV  
__________  
__________  
+ 3 mV  
Vout + 6 mV  
High Voltage Vout  
Front Panel Display Readback  
Both  
Both  
__________  
__________  
6.006 V  
Vout + 12 mV  
5.994 V  
Vout 12 mV  
CV Load Effect  
CV Source Effect  
CV Ripple and Noise  
peak-to-peak  
Both  
Both  
2.6 mV  
__________  
__________  
+ 2.6 mV  
+ 2.6 mV  
2.6 mV  
Both  
Both  
N/A  
N/A  
__________  
__________  
60 mV  
8 mV  
rms  
Transient Response  
Voltage @ 1.2ms  
Both  
30 mV  
__________  
+ 30 mV  
Current Programming & Readback  
Minimum Current Iout  
N5741A  
N5761A  
100 mA  
180 mA  
__________  
__________  
+ 100 mA  
+ 180 mA  
Front Panel Display Readback  
High Current Iout  
N5741A  
N5761A  
N5741A  
N5761A  
__________  
__________  
__________  
__________  
Iout + 300 mA  
Iout + 540 mA  
Iout 300 mA  
Iout 540 mA  
99.8 A  
179.64 A  
100.2 A  
180.3 A  
Front Panel Display Readback  
N5741A  
N5761A  
__________  
__________  
Iout + 400 mA  
Iout + 720 mA  
Iout 400 mA  
Iout 720 mA  
CC Load Effect  
N5741A  
N5761A  
25 mA  
41 mA  
__________  
__________  
+ 25 mA  
+ 41 mA  
CC Source Effect  
N5741A  
N5761A  
12 mA  
20 mA  
__________  
__________  
+ 12 mA  
+ 20 mA  
Test Description  
N5741A Settings  
0 V, 0 A  
N5761A Settings  
0 V, 0 A  
Voltage Programming & Readback, Min Voltage  
Voltage Programming & Readback, High Voltage  
CV Load Effect, Source Effect, Ripple and Noise  
Transient Response  
6 V, 0 A  
6 V, 0 A  
6 V, 100 A  
6 V, 180 A  
6 V, from 10 A to 90A  
0 A, 6 V  
6 V, from 18 A to 172A  
0 A, 6 V  
Current Programming & Readback, Min Current  
Current Programming & Readback, High Current  
CC Load Effect, Source Effect  
100 A, 6 V  
180 A, 6 V  
100 A, 6 V  
180 A, 6 V  
Load Requirements  
N5741A  
N5761A  
0.001300 A  
3 – N3305A  
0.032kW  
Current shunt  
0.01100 A  
2 – N3305A  
0.061kW  
Agilent N3300 Electronic load modules  
Fixed Resistor for CV Ripple and Noise  
Series N5700 User’s Guide  
99  
Verification  
Test Record Form – Agilent N5742A and N5762A  
Agilent N5742A and N5762A  
Description  
Report No _______________  
Date __________________  
Model  
Minimum Specs.  
Results  
Maximum Specs.  
Voltage Programming & Readback  
Minimum Voltage Vout  
Front Panel Display Readback  
Both  
Both  
4 mV  
Vout 8 mV  
__________  
__________  
+ 4 mV  
Vout + 8 mV  
High Voltage Vout  
Front Panel Display Readback  
Both  
Both  
__________  
__________  
8.008 V  
Vout + 16 mV  
7.992 V  
Vout 16 mV  
CV Load Effect  
CV Source Effect  
CV Ripple and Noise  
peak-to-peak  
Both  
Both  
2.8 mV  
__________  
__________  
+ 2.8 mV  
+ 2.8 mV  
2.8 mV  
Both  
Both  
N/A  
N/A  
__________  
__________  
60 mV  
8 mV  
rms  
Transient Response  
Voltage @ 1.2ms  
Both  
40 mV  
__________  
+ 40 mV  
Current Programming & Readback  
Minimum Current Iout  
N5742A  
N5762A  
90 mA  
165 mA  
__________  
__________  
+ 90 mA  
+ 165 mA  
Front Panel Display Readback  
High Current Iout  
N5742A  
N5762A  
N5742A  
N5762A  
__________  
__________  
__________  
__________  
Iout + 270 mA  
Iout + 495 mA  
90.18 A  
165.33 A  
Iout 270 mA  
Iout 495 mA  
89.82 A  
164.67 A  
Front Panel Display Readback  
N5742A  
N5762A  
__________  
__________  
Iout + 360 mA  
Iout + 660 mA  
Iout 360 mA  
Iout 660 mA  
CC Load Effect  
N5742A  
N5762A  
23 mA  
38 mA  
__________  
__________  
+ 23 mA  
+ 38 mA  
CC Source Effect  
N5742A  
N5762A  
11 mA  
18.5 mA  
__________  
__________  
+ 11 mA  
+ 18.5 mA  
Test Description  
N5742A Settings  
0 V, 0 A  
N5762A Settings  
0 V, 0 A  
Voltage Programming & Readback, Min Voltage  
Voltage Programming & Readback, High Voltage  
CV Load Effect, Source Effect, Ripple and Noise  
Transient Response  
8 V, 0 A  
8 V, 0 A  
8 V, 90 A  
8 V, 165 A  
8 V, from 9 A to 81A  
0 A, 8 V  
8 V, from 16.5 A to 148.5A  
0 A, 8 V  
Current Programming & Readback, Min Current  
Current Programming & Readback, High Current  
CC Load Effect, Source Effect  
90 A, 8 V  
165 A, 8 V  
90 A, 8 V  
165 A, 8 V  
Load Requirements  
N5742A  
N5762A  
0.001300 A  
3 – N3305A  
0.042kW  
Current shunt  
0.01100 A  
2 – N3305A  
0.091kW  
Agilent N3300 Electronic load modules  
Fixed Resistor for CV Ripple and Noise  
100  
Series N5700 User’s Guide  
Verification  
Test Record Form – Agilent N5743A and N5763A  
Agilent N5743A and N5763A  
Description  
Report No _______________  
Date __________________  
Model  
Minimum Specs.  
Results  
Maximum Specs.  
Voltage Programming & Readback  
Minimum Voltage Vout  
Front Panel Display Readback  
Both  
Both  
6.25 mV  
Vout 12.5 mV  
__________  
__________  
+ 6.25 mV  
Vout + 12.5 mV  
High Voltage Vout  
Front Panel Display Readback  
Both  
Both  
__________  
__________  
12.5125 V  
Vout + 25 mV  
12.4875 V  
Vout 25 mV  
CV Load Effect  
CV Source Effect  
CV Ripple and Noise  
peak-to-peak  
Both  
Both  
3.25 mV  
__________  
__________  
+ 3.25 mV  
+ 3.25 mV  
3.25 mV  
Both  
Both  
N/A  
N/A  
__________  
__________  
60 mV  
8 mV  
rms  
Transient Response  
Voltage @ 1.2ms  
Both  
62 mV  
__________  
+ 62 mV  
Current Programming & Readback  
Minimum Current Iout  
N5743A  
N5763A  
60 mA  
120 mA  
__________  
__________  
+ 60 mA  
+ 120 mA  
Front Panel Display Readback  
High Current Iout  
N5743A  
N5763A  
N5743A  
N5763A  
__________  
__________  
__________  
__________  
Iout + 180 mA  
Iout + 360 mA  
60.12 A  
120.24 A  
Iout 180 mA  
Iout 360 mA  
59.88 A  
119.76 A  
Front Panel Display Readback  
N5743A  
N5763A  
__________  
__________  
Iout + 240 mA  
Iout + 480 mA  
Iout 240 mA  
Iout 480 mA  
CC Load Effect  
N5743A  
N5763A  
17 mA  
29 mA  
__________  
__________  
+ 17 mA  
+ 29 mA  
CC Source Effect  
N5743A  
N5763A  
8 mA  
14 mA  
__________  
__________  
+ 8 mA  
+ 14 mA  
Test Description  
N5743A Setting  
0 V, 0 A  
N5763A Setting  
0 V, 0 A  
Voltage Programming & Readback, Min Voltage  
Voltage Programming & Readback, High Voltage  
CV Load Effect, Source Effect, Ripple and Noise  
Transient Response  
12.5 V, 0 A  
12.5 V, 60 A  
12.5 V, 0 A  
12.5 V, 120 A  
12.5 V, from 6 A to 54A 12.5 V, from 12 A to 108 A  
Current Programming & Readback, Min Current  
Current Programming & Readback, High Current  
CC Load Effect, Source Effect  
0 A, 12.5 V  
60 A, 12.5 V  
60 A, 12.5 V  
0 A, 12.5 V  
120 A, 12.5 V  
120 A, 12.5 V  
Load Requirements  
N5743A  
N5763A  
0.001300 A  
3 – N3305A  
0.102kW  
Current shunt  
0.01100 A  
2 – N3305A  
0.211kW  
Agilent N3300 Electronic load modules  
Fixed Resistor for CV Ripple and Noise  
Series N5700 User’s Guide  
101  
Verification  
Test Record Form – Agilent N5744A and N5764A  
Agilent N5744A and N5764A  
Description  
Report No _______________  
Date __________________  
Model  
Minimum Specs.  
Results  
Maximum Specs.  
Voltage Programming & Readback  
Minimum Voltage Vout  
Front Panel Display Readback  
Both  
Both  
10 mV  
Vout 20 mV  
__________  
__________  
+ 10 mV  
Vout + 20 mV  
High Voltage Vout  
Front Panel Display Readback  
Both  
Both  
__________  
__________  
20.02 V  
Vout + 40 mV  
19.98 V  
Vout 40 mV  
CV Load Effect  
CV Source Effect  
CV Ripple and Noise  
peak-to-peak  
Both  
Both  
4 mV  
__________  
__________  
+ 4 mV  
+ 4 mV  
4 mV  
Both  
Both  
N/A  
N/A  
__________  
__________  
60 mV  
8 mV  
rms  
Transient Response  
Voltage @ 1ms  
Both  
100 mV  
__________  
+ 100 mV  
Current Programming & Readback  
Minimum Current Iout  
N5744A  
N5764A  
38 mA  
76 mA  
__________  
__________  
+ 38 mA  
+ 76 mA  
Front Panel Display Readback  
High Current Iout  
N5744A  
N5764A  
N5744A  
N5764A  
__________  
__________  
__________  
__________  
Iout + 114 mA  
Iout + 228 mA  
38.076 A  
76.152 A  
Iout 114 mA  
Iout 228 mA  
37.924 A  
75.848 A  
Front Panel Display Readback  
N5744A  
N5764A  
__________  
__________  
Iout + 152 mA  
Iout + 304 mA  
Iout 152 mA  
Iout 304 mA  
CC Load Effect  
N5744A  
N5764A  
12.6 mA  
20.2 mA  
__________  
__________  
+ 12.6 mA  
+ 20.2 mA  
CC Source Effect  
N5744A  
N5764A  
5.8 mA  
9.6 mA  
__________  
__________  
+ 5.8 mA  
+ 9.6 mA  
Test Description  
N5744A Setting  
0 V, 0 A  
N5764A Setting  
0 V, 0 A  
Voltage Programming & Readback, Min Voltage  
Voltage Programming & Readback, High Voltage  
CV Load Effect, Source Effect, Ripple and Noise  
Transient Response  
20 V, 0 A  
20 V, 0 A  
20 V, 38 A  
20 V, 76 A  
20 V, from 3.8 A to 34.2 A 20 V, from 7.6 A to 68.4 A  
Current Programming & Readback, Min Current  
Current Programming & Readback, High Current  
CC Load Effect, Source Effect  
0 A, 20 V  
38 A, 20 V  
38 A, 20 V  
0 A, 20 V  
76 A, 20 V  
76 A, 20 V  
Load Requirements  
N5744A  
N5764A  
Current shunt  
0.01100 A  
2 – N3305A  
0.531kW  
0.01100 A  
3 – N3305A  
0.262kW  
Agilent N3300 Electronic load modules  
Fixed Resistor for CV Ripple and Noise  
102  
Series N5700 User’s Guide  
Verification  
Test Record Form – Agilent N5745A and N5765A  
Agilent N5745A and N5765A  
Description  
Report No _______________  
Date __________________  
Model  
Minimum Specs.  
Results  
Maximum Specs.  
Voltage Programming & Readback  
Minimum Voltage Vout  
Front Panel Display Readback  
Both  
Both  
15 mV  
Vout 30 mV  
__________  
__________  
+ 15 mV  
Vout + 30 mV  
High Voltage Vout  
Front Panel Display Readback  
Both  
Both  
__________  
__________  
30.03 V  
Vout + 60 mV  
29.97 V  
Vout 60 mV  
CV Load Effect  
CV Source Effect  
CV Ripple and Noise  
peak-to-peak  
Both  
Both  
5 mV  
__________  
__________  
+ 5 mV  
+ 5 mV  
5 mV  
Both  
Both  
N/A  
N/A  
__________  
__________  
60 mV  
8 mV  
rms  
Transient Response  
Voltage @ 1ms  
Both  
150 mV  
__________  
+ 150 mV  
Current Programming & Readback  
Minimum Current Iout  
N5745A  
N5765A  
25 mA  
50 mA  
__________  
__________  
+ 25 mA  
+ 50 mA  
Front Panel Display Readback  
High Current Iout  
N5745A  
N5765A  
N5745A  
N5765A  
__________  
__________  
__________  
__________  
Iout + 75 mA  
Iout + 150 mA  
Iout 75 mA  
Iout 150 mA  
25.05 A  
50.1 A  
24.95 A  
49.9 A  
Front Panel Display Readback  
N5745A  
N5765A  
__________  
__________  
Iout + 100 mA  
Iout + 200 mA  
Iout 100 mA  
Iout 200 mA  
CC Load Effect  
N5745A  
N5765A  
10 mA  
15 mA  
__________  
__________  
+ 10 mA  
+ 15 mA  
CC Source Effect  
N5745A  
N5765A  
4.5 mA  
7 mA  
__________  
__________  
+ 4.5 mA  
+ 7 mA  
Test Description  
N5745A Setting  
0 V, 0 A  
N5765A Setting  
0 V, 0 A  
Voltage Programming & Readback, Min Voltage  
Voltage Programming & Readback, High Voltage  
CV Load Effect, Source Effect, Ripple and Noise  
Transient Response  
30 V, 0 A  
30 V, 0 A  
30 V, 25 A  
30 V, 50 A  
30 V, from 2.5 A to 22.5 A  
0 A, 30 V  
30 V, from 5 A to 45 A  
0 A, 30 V  
Current Programming & Readback, Min Current  
Current Programming & Readback, High Current  
CC Load Effect, Source Effect  
25 A, 30 V  
50 A, 30 V  
25 A, 30 V  
50 A, 30 V  
Load Requirements  
N5745A  
N5765A  
Current shunt  
0.01100 A  
2 – N3305A  
1.201kW  
0.01100 A  
3 – N3305A  
0.602kW  
Agilent N3300 Electronic load modules  
Fixed Resistor for CV Ripple and Noise  
Series N5700 User’s Guide  
103  
Verification  
Test Record Form – Agilent N5746A and N5766A  
Agilent N5746A and N5766A  
Description  
Report No _______________  
Date __________________  
Model  
Minimum Specs.  
Results  
Maximum Specs.  
Voltage Programming & Readback  
Minimum Voltage Vout  
Front Panel Display Readback  
Both  
Both  
20 mV  
Vout 40 mV  
__________  
__________  
+ 20 mV  
Vout + 40 mV  
High Voltage Vout  
Front Panel Display Readback  
Both  
Both  
__________  
__________  
40.04 V  
Vout + 80 mV  
39.96 V  
Vout 80 mV  
CV Load Effect  
CV Source Effect  
CV Ripple and Noise  
peak-to-peak  
Both  
Both  
6 mV  
__________  
__________  
+ 6 mV  
+ 6 mV  
6 mV  
Both  
Both  
N/A  
N/A  
__________  
__________  
60 mV  
8 mV  
rms  
Transient Response  
Voltage @ 1ms  
Both  
200 mV  
__________  
+ 200 mV  
Current Programming & Readback  
Minimum Current Iout  
N5746A  
N5766A  
19 mA  
38 mA  
__________  
__________  
+ 19 mA  
+ 38 mA  
Front Panel Display Readback  
High Current Iout  
N5746A  
N5766A  
N5746A  
N5766A  
__________  
__________  
__________  
__________  
Iout + 57 mA  
Iout + 114 mA  
19.038 A  
38.076 A  
Iout 57 mA  
Iout 114 mA  
18.962 A  
37.924 A  
Front Panel Display Readback  
N5746A  
N5766A  
__________  
__________  
Iout + 76 mA  
Iout + 152 mA  
Iout 76 mA  
Iout 152 mA  
CC Load Effect  
N5746A  
N5766A  
8.8 mA  
12.6 mA  
__________  
__________  
+ 8.8 mA  
+ 12.6 mA  
CC Source Effect  
N5746A  
N5766A  
3.9 mA  
5.8 mA  
__________  
__________  
+ 3.9 mA  
+ 5.8 mA  
Test Description  
N5746A Setting  
0 V, 0 A  
N5766A Setting  
0 V, 0 A  
Voltage Programming & Readback, Min Voltage  
Voltage Programming & Readback, High Voltage  
CV Load Effect, Source Effect, Ripple and Noise  
Transient Response  
40 V, 0 A  
40 V, 0 A  
40 V, 19 A  
40 V, 38 A  
40 V, from 1.9 A to 17.1 A 40 V, from 3.8 A to 34.2 A  
Current Programming & Readback, Min Current  
Current Programming & Readback, High Current  
CC Load Effect, Source Effect  
0 A, 40 V  
19 A, 40 V  
19 A, 40 V  
0 A, 40 V  
38 A, 40 V  
38 A, 40 V  
Load Requirements  
N5746A  
N5766A  
Current shunt  
0.01100 A  
2 – N3305A  
2.111kW  
0.01100 A  
3 – N3305A  
1.052kW  
Agilent N3300 Electronic load modules  
Fixed Resistor for CV Ripple and Noise  
104  
Series N5700 User’s Guide  
Verification  
Test Record Form – Agilent N5747A and N5767A  
Agilent N5747A and N5767A  
Description  
Report No _______________  
Date __________________  
Model  
Minimum Specs.  
Results  
Maximum Specs.  
Voltage Programming & Readback  
Minimum Voltage Vout  
Front Panel Display Readback  
Both  
Both  
30 mV  
Vout 60 mV  
__________  
__________  
+ 30 mV  
Vout + 60 mV  
High Voltage Vout  
Front Panel Display Readback  
Both  
Both  
__________  
__________  
60.06 V  
Vout + 120 mV  
59.94 V  
Vout 120 mV  
CV Load Effect  
CV Source Effect  
CV Ripple and Noise  
peak-to-peak  
Both  
Both  
8 mV  
__________  
__________  
+ 8 mV  
+ 8 mV  
8 mV  
Both  
Both  
N/A  
N/A  
__________  
__________  
60 mV  
8 mV  
rms  
Transient Response  
Voltage @ 1ms  
Both  
300 mV  
__________  
+ 300 mV  
Current Programming & Readback  
Minimum Current Iout  
N5747A  
N5767A  
12.5 mA  
25 mA  
__________  
__________  
+ 12.5 mA  
+ 25 mA  
Front Panel Display Readback  
High Current Iout  
N5747A  
N5767A  
N5747A  
N5767A  
__________  
__________  
__________  
__________  
Iout + 37.5 mA  
Iout + 75 mA  
Iout 37.5 mA  
Iout 75 mA  
12.525 A  
25.05 A  
12.475 A  
24.95 A  
Front Panel Display Readback  
N5747A  
N5767A  
__________  
__________  
Iout + 50 mA  
Iout + 100 mA  
Iout 50 mA  
Iout 100 mA  
CC Load Effect  
N5747A  
N5767A  
7.5 mA  
10 mA  
__________  
__________  
+ 7.5 mA  
+ 10 mA  
CC Source Effect  
N5747A  
N5767A  
3.25 mA  
4.5 mA  
__________  
__________  
+ 3.25 mA  
+ 4.5 mA  
Test Description  
N5747A Setting  
0 V, 0 A  
N5767A Setting  
0 V, 0 A  
Voltage Programming & Readback, Min Voltage  
Voltage Programming & Readback, High Voltage  
CV Load Effect, Source Effect, Ripple and Noise  
Transient Response  
60 V, 0 A  
60 V, 0 A  
60 V, 12.5 A  
60 V, from 1.25 A to 11.25 A  
60 V, 25 A  
60 V, from 2.5 A to 22.5 A  
0 A, 60 V  
Current Programming & Readback, Min Current  
Current Programming & Readback, High Current  
CC Load Effect, Source Effect  
0 A, 60 V  
12.5 A, 60 V  
25 A, 60 V  
12.5 A, 60 V  
25 A, 60 V  
Load Requirements  
N5747A  
0.115 A  
2 – N3305A  
4.81kW  
N5767A  
0.01100 A  
3 – N3305A  
2.42kW  
Current shunt  
Agilent N3300 Electronic load modules  
Fixed Resistor for CV Ripple and Noise  
Series N5700 User’s Guide  
105  
Verification  
Test Record Form – Agilent N5748A and N5768A  
Agilent N5748A and N5768A  
Description  
Report No _______________  
Date __________________  
Model  
Minimum Specs.  
Results  
Maximum Specs.  
Voltage Programming & Readback  
Minimum Voltage Vout  
Front Panel Display Readback  
Both  
Both  
40 mV  
Vout 80 mV  
__________  
__________  
+ 40 mV  
Vout + 80 mV  
High Voltage Vout  
Front Panel Display Readback  
Both  
Both  
__________  
__________  
80.08 V  
Vout + 160 mV  
79.92 V  
Vout 160 mV  
CV Load Effect  
Both  
Both  
10 mV  
__________  
__________  
+ 10 mV  
+ 10 mV  
CV Source Effect  
CV Ripple and Noise  
peak-to-peak  
10 mV  
Both  
Both  
N/A  
N/A  
__________  
__________  
80 mV  
8 mV  
rms  
Transient Response  
Voltage @ 1ms  
Both  
400 mV  
__________  
+ 400 mV  
Current Programming & Readback  
Minimum Current Iout  
N5748A  
N5768A  
9.5 mA  
19 mA  
__________  
__________  
+ 9.5 mA  
+ 19 mA  
Front Panel Display Readback  
High Current Iout  
N5748A  
N5768A  
N5748A  
N5768A  
__________  
__________  
__________  
__________  
Iout + 28.5 mA  
Iout + 57 mA  
Iout 28.5 mA  
Iout 57 mA  
9.519 A  
19.038 A  
9.481 A  
18.962 A  
Front Panel Display Readback  
N5748A  
N5768A  
__________  
__________  
Iout + 38 mA  
Iout + 76 mA  
Iout 38 mA  
Iout 76 mA  
CC Load Effect  
N5748A  
N5768A  
6.9 mA  
8.8 mA  
__________  
__________  
+ 6.9 mA  
+ 8.8 mA  
CC Source Effect  
N5748A  
N5768A  
2.95 mA  
3.9 mA  
__________  
__________  
+ 2.95 mA  
+ 3.9 mA  
Test Description  
N5748A Setting  
0 V, 0 A  
N5768A Setting  
0 V, 0 A  
Voltage Programming & Readback, Min Voltage  
Voltage Programming & Readback, High Voltage  
CV Load Effect, Source Effect, Ripple and Noise  
Transient Response  
80 V, 0 A  
80 V, 0 A  
80 V, 9.5 A  
80 V, 19 A  
80 V, from 0.95 A to 8.55 A 80 V, from 1.9 A to 17.1 A  
Current Programming & Readback, Min Current  
Current Programming & Readback, High Current  
CC Load Effect, Source Effect  
0 A, 80 V  
9.5 A, 80 V  
9.5 A, 80 V  
0 A, 80 V  
19 A, 80 V  
19 A, 80 V  
Load Requirements  
N5748A  
0.115 A  
2 – N3305A  
8.421kW  
N5768A  
Current shunt  
0.01100 A  
3 – N3305A  
4.212kW  
Agilent N3300 Electronic load modules  
Fixed Resistor for CV Ripple and Noise  
106  
Series N5700 User’s Guide  
Verification  
Test Record Form – Agilent N5749A and N5769A  
Agilent N5749A and N5769A  
Description  
Report No _______________  
Date __________________  
Model  
Minimum Specs.  
Results  
Maximum Specs.  
Voltage Programming & Readback  
Minimum Voltage Vout  
Front Panel Display Readback  
Both  
Both  
50 mV  
Vout 100 mV  
__________  
__________  
+ 50 mV  
Vout + 100 mV  
High Voltage Vout  
Front Panel Display Readback  
Both  
Both  
__________  
__________  
100.1 V  
Vout + 200 mV  
99.9 V  
Vout 200 mV  
CV Load Effect  
CV Source Effect  
CV Ripple and Noise  
peak-to-peak  
Both  
Both  
12 mV  
__________  
__________  
+ 12 mV  
+ 12 mV  
12 mV  
Both  
Both  
N/A  
N/A  
__________  
__________  
80 mV  
8 mV  
rms  
Transient Response  
Voltage @ 1ms  
Both  
500 mV  
__________  
+ 500 mV  
Current Programming & Readback  
Minimum Current Iout  
N5749A  
N5769A  
7.5 mA  
15 mA  
__________  
__________  
+ 7.5 mA  
+ 15 mA  
Front Panel Display Readback  
High Current Iout  
N5749A  
N5769A  
N5749A  
N5769A  
__________  
__________  
__________  
__________  
Iout + 22.5 mA  
Iout + 45 mA  
Iout 22.5 mA  
Iout 45 mA  
7.515 A  
15.03 A  
7.485 A  
14.97 A  
Front Panel Display Readback  
N5749A  
N5769A  
__________  
__________  
Iout + 30 mA  
Iout + 60 mA  
Iout 30 mA  
Iout 60 mA  
CC Load Effect  
N5749A  
N5769A  
6.5 mA  
8 mA  
__________  
__________  
+ 6.5 mA  
+ 8 mA  
CC Source Effect  
N5749A  
N5769A  
2.75 mA  
3.5 mA  
__________  
__________  
+ 2.75 mA  
+ 3.5 mA  
Test Description  
N5749A Setting  
0 V, 0 A  
N5769A Setting  
0 V, 0 A  
Voltage Programming & Readback, Min Voltage  
Voltage Programming & Readback, High Voltage  
CV Load Effect, Source Effect, Ripple and Noise  
Transient Response  
100 V, 0 A  
100 V, 0 A  
100 V, 7.5 A  
100 V, from 0.75 A to 6.75 A  
100 V, 15 A  
100 V, from 1.5 A to 13.5 A  
0 A, 100 V  
Current Programming & Readback, Min Current  
Current Programming & Readback, High Current  
CC Load Effect, Source Effect  
0 A, 100 V  
7.5 A, 100 V  
15 A, 100 V  
7.5 A, 100 V  
15 A, 100 V  
Load Requirements  
N5749A  
0.115 A  
N5769A  
0.115 A  
3 – N3305A  
6.672kW  
Current shunt  
Agilent N3300 Electronic load modules  
Fixed Resistor for CV Ripple and Noise  
2 – N3305A  
13.331kW  
Series N5700 User’s Guide  
107  
Verification  
Test Record Form – Agilent N5750A and N5770A  
Agilent N5750A and N5770A  
Description  
Report No _______________  
Date __________________  
Model  
Minimum Specs.  
Results  
Maximum Specs.  
Voltage Programming & Readback  
Minimum Voltage Vout  
Front Panel Display Readback  
Both  
Both  
75 mV  
Vout 150 mV  
__________  
__________  
+ 75 mV  
Vout + 150 mV  
High Voltage Vout  
Front Panel Display Readback  
Both  
Both  
__________  
__________  
150.15 V  
Vout + 300 mV  
149.85 V  
Vout 300 mV  
CV Load Effect  
CV Source Effect  
CV Ripple and Noise  
peak-to-peak  
Both  
Both  
17 mV  
__________  
__________  
+ 17 mV  
+ 17 mV  
17 mV  
Both  
Both  
N/A  
N/A  
__________  
__________  
100 mV  
12 mV  
rms  
Transient Response  
Voltage @ 2ms  
Both  
750 mV  
__________  
+ 750 mV  
Current Programming & Readback  
Minimum Current Iout  
N5750A  
N5770A  
5 mA  
10 mA  
__________  
__________  
+ 5 mA  
+ 10 mA  
Front Panel Display Readback  
High Current Iout  
N5750A  
N5770A  
N5750A  
N5770A  
__________  
__________  
__________  
__________  
Iout + 15 mA  
Iout + 30 mA  
5.01 A  
10.02 A  
Iout 15 mA  
Iout 30 mA  
4.99 A  
9.98 A  
Front Panel Display Readback  
N5750A  
N5770A  
__________  
__________  
Iout + 20 mA  
Iout + 40 mA  
Iout 20 mA  
Iout 40 mA  
CC Load Effect  
N5750A  
N5770A  
6 mA  
7 mA  
__________  
__________  
+ 6 mA  
+ 7 mA  
CC Source Effect  
N5750A  
N5770A  
2.5 mA  
3 mA  
__________  
__________  
+ 2.5 mA  
+ 3 mA  
Test Description  
N5750A Setting  
0 V, 0 A  
N5770A Setting  
0 V, 0 A  
Voltage Programming & Readback, Min Voltage  
Voltage Programming & Readback, High Voltage  
CV Load Effect, Source Effect, Ripple and Noise  
Transient Response  
150 V, 0 A  
150 V, 5 A  
150 V, 0 A  
150 V, 10 A  
150 V, from 0.5 A to 4.5 A  
0 A, 150 V  
150 V, from 1 A to 9 A  
0 A, 150 V  
Current Programming & Readback, Min Current  
Current Programming & Readback, High Current  
CC Load Effect, Source Effect  
5 A, 150 V  
10 A, 150 V  
5 A, 150 V  
10 A, 150 V  
Load Requirements  
N5750A  
0.115 A  
2 – N3305A  
30.01kW  
N5770A  
0.115 A  
3 – N3305A  
15.02kW  
Current shunt  
Agilent N3300 Electronic load modules  
Fixed Resistor for CV Ripple and Noise  
108  
Series N5700 User’s Guide  
Verification  
Test Record Form – Agilent N5751A and N5771A  
Agilent N5751A and N5771A  
Description  
Report No _______________  
Date __________________  
Model  
Minimum Specs.  
Results  
Maximum Specs.  
Voltage Programming & Readback  
Minimum Voltage Vout  
Front Panel Display Readback  
Both  
Both  
150 mV  
Vout 300 mV  
__________  
__________  
+ 150 mV  
Vout + 300 mV  
High Voltage Vout  
Front Panel Display Readback  
Both  
Both  
__________  
__________  
300.3 V  
Vout + 600 mV  
299.7 V  
Vout 600 mV  
CV Load Effect  
CV Source Effect  
CV Ripple and Noise  
peak-to-peak  
Both  
Both  
32 mV  
__________  
__________  
+ 32 mV  
+ 32 mV  
32 mV  
Both  
Both  
N/A  
N/A  
__________  
__________  
150 mV  
20 mV  
rms  
Transient Response  
Voltage @ 2ms  
Both  
1 V  
__________  
+ 1 V  
Current Programming & Readback  
Minimum Current Iout  
N5751A  
N5771A  
2.5 mA  
5 mA  
__________  
__________  
+ 2.5 mA  
+ 5 mA  
Front Panel Display Readback  
High Current Iout  
N5751A  
N5771A  
N5751A  
N5771A  
__________  
__________  
__________  
__________  
Iout + 7.5 mA  
Iout + 15 mA  
Iout 7.5 mA  
Iout 15 mA  
2.505 A  
5.01 A  
2.495 A  
4.99 A  
Front Panel Display Readback  
N5751A  
N5771A  
__________  
__________  
Iout + 10 mA  
Iout + 20 mA  
Iout 10 mA  
Iout 20 mA  
CC Load Effect  
N5751A  
N5771A  
5.5 mA  
6 mA  
__________  
__________  
+ 5.5 mA  
+ 6 mA  
CC Source Effect  
N5751A  
N5771A  
2.25 mA  
2.5 mA  
__________  
__________  
+ 2.25 mA  
+ 2.5 mA  
Test Description  
N5751A Setting  
0 V, 0 A  
N5771A Setting  
0 V, 0 A  
Voltage Programming & Readback, Min Voltage  
Voltage Programming & Readback, High Voltage  
CV Load Effect, Source Effect, Ripple and Noise  
Transient Response  
300 V, 0 A  
300 V, 0 A  
300 V, 2.5 A  
200 V, from 0.25 A to 2.25 A  
300 V, 5 A  
200 V, from 0.5 A to 4.5 A  
0 A, 300 V  
Current Programming & Readback, Min Current  
Current Programming & Readback, High Current  
CC Load Effect, Source Effect  
0 A, 300 V  
2.5 A, 300 V  
5 A, 300 V  
2.5 A, 300 V  
5 A, 300 V  
Load Requirements  
N5751A  
0.115 A  
1201kW  
1201kW  
N5771A  
0.115 A  
602kW  
602kW  
Current shunt  
Use fixed resistor instead of load modules  
Fixed Resistor for CV Ripple and Noise  
Series N5700 User’s Guide  
109  
Verification  
Test Record Form – Agilent N5752A and N5772A  
Agilent N5752A and N5772A  
Description  
Report No _______________  
Date __________________  
Model  
Minimum Specs.  
Results  
Maximum Specs.  
Voltage Programming & Readback  
Minimum Voltage Vout  
Front Panel Display Readback  
Both  
Both  
300 mV  
Vout 600 mV  
__________  
__________  
+ 300 mV  
Vout + 600 mV  
High Voltage Vout  
Front Panel Display Readback  
Both  
Both  
__________  
__________  
600.6 V  
Vout + 1.2 V  
599.4 V  
Vout 1.2 V  
CV Load Effect  
CV Source Effect  
CV Ripple and Noise  
peak-to-peak  
Both  
Both  
62 mV  
__________  
__________  
+ 62 mV  
+ 62 mV  
62 mV  
Both  
Both  
N/A  
N/A  
__________  
__________  
300 mV  
60 mV  
rms  
Transient Response  
Voltage @ 2ms  
Both  
1 V  
__________  
+ 1 V  
Current Programming & Readback  
Minimum Current Iout  
N5752A  
N5772A  
1.3 mA  
2.6 mA  
__________  
__________  
+ 1.3 mA  
+ 2.6 mA  
Front Panel Display Readback  
High Current Iout  
N5752A  
N5772A  
N5752A  
N5772A  
__________  
__________  
__________  
__________  
Iout + 3.9 mA  
Iout + 7.8 mA  
1.3026 A  
2.6052 A  
Iout 3.9 mA  
Iout 7.8 mA  
1.2974 A  
2.5948 A  
Front Panel Display Readback  
N5752A  
N5772A  
__________  
__________  
Iout + 5.2 mA  
Iout + 10.4 mA  
Iout 5.2 mA  
Iout 10.4 mA  
CC Load Effect  
N5752A  
N5772A  
5.26 mA  
5.5 mA  
__________  
__________  
+ 5.26 mA  
+ 5.5 mA  
CC Source Effect  
N5752A  
N5772A  
2.13 mA  
2.26 mA  
__________  
__________  
+ 2.13 mA  
+ 2.26 mA  
Test Description  
N5752A Setting  
0 V, 0 A  
N5772A Setting  
0 V, 0 A  
Voltage Programming & Readback, Min Voltage  
Voltage Programming & Readback, High Voltage  
CV Load Effect, Source Effect, Ripple and Noise  
Transient Response  
600 V, 0 A  
600 V, 0 A  
600 V, 1.3 A  
600 V, 2.6 A  
200 V, from 0.13 A to 1.17 A 200 V, from 0.26 A to 2.34 A  
Current Programming & Readback, Min Current  
Current Programming & Readback, High Current  
CC Load Effect, Source Effect  
0 A, 600 V  
1.3 A, 600 V  
1.3 A, 600 V  
0 A, 600 V  
2.6 A, 600 V  
2.6 A, 600 V  
Load Requirements  
N5752A  
0.115 A  
4621kW  
4621kW  
N5772A  
0.115 A  
2312kW  
2312kW  
Current shunt  
Use fixed resistor instead of load modules  
Fixed Resistor for CV Ripple and Noise  
110  
Series N5700 User’s Guide  
Calibration  
Calibration  
Refer to the “Equipment Required” section in this appendix for a list  
of the equipment required for calibration. A general outline of the  
procedure is as follows:  
Enter the calibration mode by providing the correct password.  
The password is set at the factory to the model number. Once  
calibration has been entered, the password can be changed by the  
user. lf the password is incorrect, an error occurs.  
You do not have to do a complete calibration. If appropriate, you  
may calibrate only the voltage or current functions and then save  
the calibration constants.  
As each calibration sequence is completed, the instrument saves  
the calibration constants and begins using them.  
Exit the calibration mode. Note that a Reset command also sets  
the calibration state to OFF.  
Calibration Procedure  
Unless instructed otherwise, connect the +sense terminal to the  
+output, and the -sense terminal to the -output.  
When calibrating the unit using SCPI commands, most calibration  
steps involve sending an *OPC? query to synchronize with the power  
supply’s command completion before proceeding. The response from  
the instrument must be read each time *OPC? is given.  
The CAL:LEV and CAL:DATA commands may take several seconds to complete.  
If a timeout occurs in your VISA application, you may need to change the  
VI_ATTR_TMO_VALUE in the ViSetAttribute function.  
NOTE  
Enable Calibration mode  
*RST  
OUTP ON  
CAL:STAT ON, <password>  
Voltage Programming and Measurement Calibration  
Step 1. Connect the Agilent 3458A voltage input to an output.  
Step 2. Select the full-scale voltage programming range. The value to program  
a range must be the maximum voltage of the range.  
CAL:VOLT <voltage>  
Step 3. Select the first voltage calibration point.  
CAL:LEV P1  
Series N5700 User’s Guide  
111  
Calibration  
*OPC?  
Step 4. Measure the output voltage with the Agilent 3458A and enter the  
data.  
CAL:DATA <data>  
Step 5. Select the second voltage calibration point.  
CAL:LEV P2  
*OPC?  
Step 6. Measure the output voltage with the Agilent 3458A and enter the  
data.  
CAL:DATA <data>  
Current Programming and Measurement Calibration  
Step 1. Connect a precision shunt resistor to an output. Connect the Agilent  
3458A to measure the voltage across the shunt. The shunt resistor  
should be suitable for measuring at least 120% of the power supply’s  
rated full-scale current.  
Step 2. Select the full-scale current programming range. The value to  
program a range must be the maximum current of the range.  
CAL:CURR <current>  
Step 3. Select the first current calibration point.  
CAL:LEV P1  
*OPC?  
Step 4. Calculate the shunt current (I=V/R) and enter the data.  
CAL:DATA <data>  
Step 5. Select the second current calibration point.  
CAL:LEV P2  
*OPC?  
Step 6. Calculate the shunt current (I=V/R) and enter the data.  
CAL:DATA <data>  
Exit Calibration mode  
CAL:STAT OFF  
112  
Series N5700 User’s Guide  
C
Service  
Types of Service Available 114  
Repackaging for Shipment 114  
Operating Checklist 114  
Error Messages 116  
This chapter discusses the procedures involved for returning a failed  
instrument to Agilent Technologies for service or repair. A procedure  
is included for diagnosing specific symptoms. Actual repair is done  
through unit exchange.  
Series N5700 User’s Guide  
113  
Types of Service Available  
Types of Service Available  
If your instrument fails during the warranty period, Agilent  
Technologies will replace or repair it free of charge. After your  
warranty expires, Agilent Technologies will replace or repair it at a  
competitive price. The standard repair process is “whole unit  
exchange”. The replacement units are fully refurbished and are  
shipped with new calibration certificates.  
Contact your nearest Agilent Technologies Service Center. They will  
arrange to have your instrument repaired or replaced.  
Repackaging for Shipment  
If the unit is to be shipped to Agilent Technologies for service or  
repair, be sure to:  
Attach a tag to the unit identifying the owner and indicating the  
required service or repair. Include the model number and full  
serial number.  
Place the unit in its original container with appropriate  
packaging material for shipping.  
Secure the container with strong tape or metal bands.  
If the original shipping container is not available, place your unit in a  
container that will ensure at least 4 inches of compressible packaging  
material around all sides for the instrument. Use static-free  
packaging materials to avoid additional damage to your unit.  
Agilent Technologies suggests that you always insure shipments.  
Operating Checklist  
If the power supply appears to be operating improperly, use the  
following procedures to determine whether the power supply, load,  
or external circuits are the cause.  
Turn-on check out procedure  
Turn off the unit and remove all external connections to the  
instrument. Follow the turn-on checkout procedure in chapter 2.  
Trouble-shooting guide  
If you have encountered problems during the checkout procedure,  
use the following guide to diagnose a specific symptom. If the action  
does not remedy the problem, return the unit for service.  
114  
Series N5700 User’s Guide  
Operating Checklist  
Symptom  
Check  
Action  
No output.  
Is the AC power cord defective?  
Check continuity. Replace if necessary.  
All displays and indicators are blank.  
Is the AC input voltage within range?  
Check AC input voltage. Connect to  
appropriate voltage source.  
Output is present momentarily, but shuts  
off quickly. Display indicates AC.  
Does the AC source voltage sag when a load Check AC input voltage. Connect to  
is applied?  
appropriate voltage source.  
Output is present momentarily, but shuts  
off quickly. Display indicates OUP.  
Is the power supply configured for remote  
sensing?  
Check if the positive or negative load wire  
is loose.  
Output voltage will not adjust.  
Front panel CC LED is on.  
Is the power supply in constant current  
mode?  
Check the current limit setting and load  
current.  
Output voltage will not adjust.  
Front panel CV LED is on.  
Is the output voltage being adjusted above  
the OVP setting or below the UVL setting?  
Set the OVP or UVL so that they will not  
limit the output.  
Output current will not adjust.  
Front panel CV LED is on.  
Is the unit in constant voltage mode?  
Is the power supply in remote sense?  
Check the current limit and voltage  
setting.  
Large ripple present in output.  
Check load and sense wires connection  
for noise and impedance effects.  
Is the voltage drop on the load wire high?  
Over-voltage circuit has tripped.  
Minimize the drop on the load wires.  
No output.  
Display indicates OUP.  
Turn off the POWER switch. Check load  
connections. If analog programming is  
used, check if the OVP is set lower than  
the output.  
No output.  
Front panel PROT indicator is blinking.  
Display indicates EΠA?  
Display indicates SO?  
Display indicates O7P?  
Check connector J1 ENABLE connection.  
Also check SW1 switch setting.  
Check connector J1 Output Shut-Off  
connection.  
Check if air intake or exhaust is blocked.  
Check if unit is installed next to heat-  
generating equipment.  
Display indicates OCP?  
Check OCP setting and load current.  
Poor load regulation.  
Front panel CV LED is on.  
Are sense wires properly connected?  
Connect sense wires according to  
instructions in chapter 2.  
Front panel controls are nonfunctional.  
Is the power supply in Local Lockout mode?  
Turn off the POWER switch and wait until  
the display turns off. Turn on the POWER  
switch and press the REM/LOC button.  
Series N5700 User’s Guide  
115  
Error Messages  
Error Messages  
Displaying the SCPI error queue  
The entire error queue is read, then emptied, using the following  
command: SYST:ERR?  
Error List  
The following table documents the various error messages that the  
power supply supports:  
Error  
Device-dependent Errors (these errors set Standard Event Status register bit #3)  
0
No error  
This is the response to the ERR? query when there are no errors.  
100  
101  
102  
104  
114  
203  
204  
205  
206  
209  
302  
351  
352  
353  
354  
Too many channels  
You have specified more channels than are installed in the mainframe.  
Calibration state is off  
Calibration is not enabled. The instrument will not accept calibration commands.  
Calibration password is incorrect  
The calibration password is incorrect.  
Bad sequence of calibration commands  
Calibration commands have not been entered in the proper sequence.  
CAL:DATE must be yyyy/mm/dd  
The calibration date must be entered in the numeric format yyyy=year, mm=month, dd=date  
Compatibility function not implemented  
The requested compatibility function is not available.  
NVRAM checksum error  
A checksum error has occurred in the instrument’s nonvolatile random access memory.  
NVRAM full  
The nonvolatile random access memory of the instrument is full.  
File not found  
The internal calibration file or the internal channel attribute file was not found in NVRAM.  
Output communications failure  
A hardware failure has occurred on the power supply.  
Option not installed  
The option that is programmed by this command is not installed.  
VOLT setting conflicts with VOLT:PROT setting  
Attempted to program the voltage above the over-voltage protection setting.  
VOLT:PROT setting conflicts with VOLT setting  
Attempted to set the over-voltage protection below the voltage setting.  
VOLT setting conflicts with VOLT:LIM:LOW setting  
Attempted to program the voltage below the under-voltage limit setting.  
VOLT:LIM:LOW setting conflicts with VOLT setting  
Attempted to set the under-voltage limit above the voltage setting  
116  
Series N5700 User’s Guide  
Error Messages  
Command Errors (these errors set Standard Event Status register bit #5)  
100  
101  
102  
103  
104  
105  
108  
109  
110  
111  
112  
113  
114  
120  
121  
123  
124  
128  
130  
131  
134  
138  
140  
Command error  
Generic syntax error.  
Invalid character  
An invalid character was found in the command string.  
Syntax error  
Invalid syntax was found in the command string. Check for blank spaces.  
Invalid separator  
An invalid separator was found in the command string. Check for proper use of , ; :  
Data type error  
A different data type than the one allowed was found in the command string.  
GET not allowed  
A group execute trigger is not allowed in a command string.  
Parameter not allowed  
More parameters were received than were expected.  
Missing parameter  
Fewer parameters were received than were expected.  
Command header error  
An error was detected in the header.  
Header separator error  
A character that was not a valid header separator was found in the command string.  
Program mnemonic too long  
The header contains more than 12 characters.  
Undefined header  
A command was received that was not valid for this instrument.  
Header suffix out of range  
The value of the numeric suffix is not valid.  
Numeric data error  
Generic numeric data error.  
Invalid character in number  
An invalid character for the data type was found in the command string.  
Exponent too large  
The magnitude of the exponent was larger than 32000.  
Too many digits  
The mantissa of a numeric parameter contained more than 255 digits, excluding leading zeros.  
Numeric data not allowed  
A numeric parameter was received but a character string was expected.  
Suffix error  
Generic suffix error  
Invalid suffix  
A suffix was incorrectly specified for a numeric parameter.  
Suffix too long  
The suffix contains more than 12 characters.  
Suffix not allowed  
A suffix is not supported for this command.  
Character data error  
Generic character data error  
Series N5700 User’s Guide  
117  
Error Messages  
Command Errors (continued)  
141  
144  
148  
150  
151  
158  
160  
161  
168  
170  
171  
178  
Invalid character data  
Either the character data element contains an invalid character, or the element is not valid.  
Character data too long  
The character data element contains more than 12 characters.  
Character data not allowed  
A discrete parameter was received, but a string or numeric parameter was expected.  
String data error  
Generic string data error  
Invalid string data  
An invalid character string was received. Check that the string is enclosed in quotation marks.  
String data not allowed  
A character string was received, but is not allowed for this command.  
Block data error  
Generic block data error  
Invalid block data  
The number of data bytes sent does not match the number of bytes specified in the header.  
Block data not allowed  
Data was sent in arbitrary block format but is not allowed for this command.  
Expression error  
Generic expression error  
Invalid expression data  
The expression data element was invalid.  
Expression data not allowed  
Expression data element was sent but is not allowed for this command.  
Execution Errors (these errors set Standard Event Status register bit #4)  
200  
220  
221  
222  
223  
224  
225  
226  
230  
Execution error  
Generic syntax error  
Parameter error  
A data element related error occurred.  
Settings conflict  
A data element could not be executed because of the present instrument state.  
Data out of range  
A data element could not be executed because the value was outside the valid range.  
Too much data  
A data element was received that contains more data than the instrument can handle.  
Illegal parameter value  
An exact value was expected but not received.  
Out of memory  
The device has insufficient memory to perform the requested operation.  
Lists not same length  
One or more lists are not the same length.  
Data corrupt or stale  
Possible invalid data. A new reading was started but not completed.  
118  
Series N5700 User’s Guide  
Error Messages  
Execution Errors (continued)  
231  
232  
233  
240  
241  
260  
261  
Data questionable  
The measurement accuracy is suspect.  
Invalid format  
The data format or structure is inappropriate.  
Invalid version  
The version of the data format is incorrect to the instrument.  
Hardware error  
The command could not be executed because of a hardware problem with the instrument.  
Hardware missing  
The command could not be executed because of missing hardware, such as an option.  
Expression error  
An expression program data element related error occurred.  
Math error in expression  
An expression program data element could not be executed due to a math error.  
Query Errors (these errors set Standard Event Status register bit #2)  
400  
410  
420  
430  
440  
Query Error  
Generic error query  
Query INTERRUPTED  
A condition causing an interrupted query error occurred.  
Query UNTERMINATED  
A condition causing an unterminated query error occurred.  
Query DEADLOCKED  
A condition causing a deadlocked query error occurred.  
Query UNTERMINATED after indefinite response  
A query was received in the same program message after a query indicating an  
indefinite response was executed.  
Series N5700 User’s Guide  
119  
D
Compatibility  
Differences – In General 122  
Compatibility Command Summary 123  
The Agilent N5700 power supplies are programmatically compatible  
with the Agilent 603xA power supplies. This means that you can  
remotely program the Agilent N5700 power supplies using the same  
commands that are used to program the 603xA power supplies.  
Do not mix Compatibility with SCPI commands in the same program. This will  
result in unpredictable instrument behavior.  
CAUTION  
Series N5700 User’s Guide  
121  
Differences – In General  
Differences – In General  
The following table documents the general differences between the  
way Compatibility commands work on the Agilent N5700 power  
supplies and the way they worked on the Agilent 603xA power  
supplies.  
Item  
Differences  
Queries  
The Agilent N5700 will respond to multiple queries.  
It will not allow a space separator between numbers.  
It will not allow a user to query information, read back only a portion of the information,  
send another command, and finish reading back the information from the original query.  
Sending a second query without reading the response to the first will generate an error.  
Model number queries will only return the N5700 model numbers.  
Status functions Serial Poll will be controlled by the SCPI status model and will not act like a 603xA  
power supply.  
SRQ will be controlled by the SCPI status model.  
Parallel poll will not work.  
Settings  
The full-scale limits will match the Agilent N5700 limits.  
Measurement  
Floating point numbers returned by the instrument may not have exactly the same  
syntax or number of digits.  
Calibration  
Calibration must be done in SCPI.  
Storage states  
The Agilent N5700 units have 16 volatile states.  
122  
Series N5700 User’s Guide  
Compatibility Command Summary  
Compatibility Command Summary  
The following table documents the compatibility commands that the  
Agilent N5700 power supplies support. All compatibility commands  
are accepted; however, some commands do nothing.  
Compatibility Command  
Description  
Similar SCPI  
Command  
STAT:OPER:EVEN?  
STAT:QUES:EVEN?  
*ESE?  
ASTS?  
Queries the accumulated status (ASTS). The response represents the sum  
of the binary weights of the ASTS register bits. The ASTS register is set to  
the present status after being queried.  
*RST  
CLR  
Returns the power supply to the power-on state. Same as *RST.  
Generates error 203.  
DLY <delay>  
DLY?  
Generates error 203.  
SYST:ERR?  
ERR?  
Queries the present programming or hardware error. An error code number  
is returned over the GPIB to identify the error. The error register is cleared  
after being read.  
STAT:OPER?  
STAT:QUES?  
*ESE?  
FAULT?  
FOLD  
Queries the fault register. A bit is set in the fault register when the  
corresponding bit in both the status and the mask registers. The response  
is an integer 0 to 255. The fault register is cleared after being read.  
CURR:PROT:STAT  
Turns the OCP on or off. This is only allowed for constant current mode  
(FOLD 2). Constant voltage mode (FOLD1) generates error 203.  
CURR:PROT:STAT?  
FOLD?  
HOLD  
Queries the OCP setting. The response is FOLD 2.  
VOLT:TRIG  
CURR:TRIG  
When turned on (HOLD 1), causes the VSET, ISET, FOLD, and UNMASK  
values to be held until a trigger occurs. This only applies to the  
compatibility functions, not the SCPI functions  
HOLD?  
ID?  
Queries the hold setting. The response is HOLD 1.  
*IDN?  
Queries the identification (model number) of the power supply.  
IMAX  
Sets a soft programming limit for current. Attempting to program the  
current above this setting will generate an error.  
IMAX?  
Queries the IMAX setting. The response is a real number.  
Queries the measured output current. The response is a real number.  
Sets the output current.  
MEAS:CURR?  
CURR  
IOUT?  
ISET <current>  
ISET?  
CURR?  
Queries the present current setting. The response is a real number.  
OUTP:STAT  
OUT <on|off>  
Turns the output on or off. On/off equals 1 turns the output on; equals 0  
turns the output off.  
OUTP:STAT?  
OUT?  
Queries whether the output is turned on or off . The response is OUT 1 (on)  
or OUT O (off). The front panel displays OFF when the output is off.  
Series N5700 User’s Guide  
123  
Compatibility Command Summary  
Compatibility Command  
Description  
Similar SCPI  
Command  
VOLT:PROT:LEV  
VOLT:PROT:LEV?  
*RCL  
OVP  
Sets the over-voltage trip point.  
OVP?  
Queries the present over-voltage setting. The response is a real number.  
RCL <reg>  
Recalls the saved settings. There are up to 16 store/recall states. Saved  
settings must have been previously stored using the STO command.  
*IDN?  
ROM?  
Queries the revision date of the power supply's firmware.  
Resets any tripped protection.  
OUTP:PROT:CLE  
*SRQ  
RST  
SRQ <setting>  
Generates error 203. The service request capability of the power supply is  
only supported using the SCPI commands  
*SRQ?  
*SAV  
SRQ?  
Always returns 0.  
STO <reg>  
Stores the present power supply settings in the specified register. There are  
up to 16 store/recall states.  
STAT:OPER:COND?  
STAT:QUES:COND?  
STS?  
Queries the present status. The response represents the sum of the binary  
weights of the status register bits. The response is STS <n>  
*TST?  
TEST?  
Always returns 0.  
TRG  
Causes the settings held with HOLD 1 to be executed.  
STAT:OPER:NTR  
STAT:OPER:PTR  
STAT:QUES:NTR  
STAT:QUES:PTR  
UNMASK <setting>  
Sets the bits in the mask register to the setting. The setting is an integer  
that represents the sum of the binary weights of the bits. The mask register  
operates in conjunction with the status and fault registers.  
STAT:OPER:NTR?  
STAT:OPER:PTR?  
STAT:QUES:NTR?  
STAT:QUES:PTR?  
UNMASK?  
VMAX  
Queries the present setting of the mask register. The response is UNMASK  
<n>.  
Sets the soft programming limit for voltage. Attempting to program the  
voltage above this setting will generate an error.  
VMAX?  
Queries the VMAX setting. The response is VMAX <n>.  
Queries the measured output voltage. The response is a real number.  
Sets the output voltage.  
MEAS:VOLT?  
VOLT  
VOUT?  
VSET <voltage>  
VSET?  
VOLT?  
Queries the present voltage setting. The response is a real number.  
124  
Series N5700 User’s Guide  
Index  
*STB?, 76  
*TST, 78  
A
*WAI, 76  
TRG, 79  
ABOR, 79  
AC INPUT, 12, 88  
1500 W units, 21  
750 W units, 21  
accessories, 18  
analog programming  
external resistance, 46  
external voltage, 45  
terminals, 45  
common mode current, 30  
compatibility  
command summary, 123  
differences, 122  
connections  
6V to 60V models, 24  
80V to 600V models, 25  
analog, 14  
J1, 34  
J2, 26  
multiple load, 28  
parallel, 30  
sense, 13  
AUT, 10  
AUTO IP, 55  
auto-restart, 43  
C
calibration, 111  
current programming and measurement, 112  
equipment, 92  
procedure, 111  
voltage programming and measurement, 111  
calibration commands, 66  
CAL CURR, 66  
CAL DATA, 66  
CAL DATE, 66  
CAL LEV, 66  
CAL PASS, 66  
CAL STAT, 67  
CAL VOLT, 67  
caution, 3  
cleaning, 20  
combining commands  
common commands, 61  
from different subsystems, 60  
root specifier, 60  
common commands, 65  
*CLS, 74  
series, 32  
series diode, 32  
constant current (CC)  
CC, 10  
check, 37  
load effect, 97  
mode, 38  
source effect, 98  
constant voltage (CV)  
check, 36  
CV, 10  
load effect, 94  
mode, 38  
noise, 95  
source effect, 95  
CURRENT, 10  
current monitoring, external, 47  
current programming accuracy, 97  
current readback accuracy, 97  
current shunt, 93  
CV/CC crossover, 39  
CV/CC signal, 39  
*ESE, 75  
*ESR?, 75  
*IDN?, 77  
*OPC, 75  
*OPT?, 78  
*RCL, 78  
*RST, 78  
*SAV, 78  
*SRE, 76  
D
daisy-chain shut down, 44  
damage, 19  
DC AMPS, 10  
DC VOLTS, 10  
Default Gateway, 55  
Series N5700 User’s Guide  
125  
Index  
device clear, 63  
DHCP, 54  
DNS, 55  
L
LAN interface, 52  
setup utility, 57  
Telnet, 58  
Domain, 56  
VISA, 58  
E
VISA Assistant, 58  
LAN, private, 53  
LAN, site, 52  
last setting memory, 44  
LFP, 11  
electronic load, 93  
enable/disable terminals, 43  
environmental conditions, 19, 88  
ERR, 76  
error messages, 116  
ESB, 76  
LIMIT, 11  
load wiring, 23  
local voltage sensing, 27  
lock front panel, 41  
F
features, 8  
FINE, 11  
M
front panel locking, 41  
functions, 9  
magnetic fields, 19  
master unit, 31  
MAV, 76  
measure commands, 67  
MEAS CURR?, 67  
MEAS VOLT?, 67  
message terminator, 61  
end or identify, 61  
newline, 61  
G
GPIB address, 50  
GPIB interface, 50  
grounding, 19, 30  
H
model numbers, 18  
model ratings, 9  
MSS, 76  
history, 2  
Hostname, 52, 56  
multiple load connections, 28  
multipliers, 62  
I
impedance effects, 29  
inductive loads, 29  
initiate commands  
INIT, 79  
N
numerical data formats, 62  
INIT CONT, 79  
inspection, 19  
IP Address, 55  
items supplied, 18  
O
OCP, 11  
OPER, 76  
operating checklist, 114  
optional commands, 59  
options, 18  
J
J1 connector, 12  
J2 connector, 12  
OUP, 11  
OUT ON, 10  
outline diagram, 19  
output commands, 68  
OUTP, 68  
OUTP PON STAT, 68  
OUTP PROT CLE, 68  
K
Keepalive, 56  
keywords, 60  
126  
Series N5700 User’s Guide  
Index  
output grounding, 30  
output noise, 29  
[SOUR] CURR [IMM], 69  
[SOUR] CURR PROT STAT, 69  
[SOUR] CURR TRIG, 69  
[SOUR] VOLT [IMM], 69  
[SOUR] VOLT LIM LOW, 70  
[SOUR] VOLT PROT LEV, 70  
[SOUR] VOLT TRIG, 69  
specifications  
output on/off control, 42  
output programming example, 82  
over-current check, 37  
over-current protection, 32, 40  
over-temperature protection, 41  
over-voltage check, 36  
over-voltage protection, 32, 39  
OVP, 11  
characteristics, 87  
performance, 86  
status commands, 71  
STAT OPER COND?, 72  
STAT OPER ENAB, 72  
STAT OPER NTR, 73  
STAT OPER PTR, 73  
STAT OPER?, 72  
P
POWER, 11  
power cord, connecting, 21  
power receptacle, 19  
power supply OK signal, 43  
power-fail protection, 41  
print date, 2  
STAT PRES, 72  
STAT QUES COND?, 73  
STAT QUES ENAB, 74  
STAT QUES NTR, 74  
STAT QUES PTR, 74  
STAT QUES?, 73  
string parameters, 62  
Subnet Mask, 55  
subsystem commands, 65  
suffixes, 62  
PROT, 11  
protection functions, 39  
Q
queries, 61  
QUES, 76  
R
support rails, 20  
SW1 switch, 12, 13  
system commands, 77  
SYST COMM RLST, 77  
SYST ERR?, 77  
rack mounting, 20  
REM, 11  
remote voltage sensing, 27  
repackaging, 114  
repacking, 19  
SYST VERS?, 77  
response data types, 63  
RQS, 76  
T
transient recovery time, 96  
trigger commands, 79  
TRIG, 79  
TRIG SOUR, 79  
trigger programming example, 83  
turn-on check out, 36  
S
SAF, 10  
safe-start, 43  
safety, 3, 19  
SCPI  
command path, 59  
commands, 15  
device clear, 63  
message unit, 60  
multiple commands, 59  
syntax, 59  
shut off terminals, 42  
slave unit, 31  
source commands, 69  
U
UFP, 11  
under-voltage check, 37  
under-voltage limit, 40  
USB ID string, 51  
USB interface, 51  
UUL, 11  
Series N5700 User’s Guide  
127  
Index  
UVL, 11  
voltage readback accuracy, 94  
voltage sensing, 26  
V
W
verification, 92  
verification equipment, 92  
VOLTAGE, 10  
voltage monitoring, external, 47  
warning, 3  
web URL’s, 4  
wire sizes, 23  
voltage programming accuracy, 94  
128  
Series N5700 User’s Guide  

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