Operation/Reference Guide
NXA-UPS1500
Uninterruptible Power Supply
US version (120 Vac)
Int’l version (240 Vac)
Last Revised: 4/01/2008
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Table of Contents
Table of Contents
NXA-UPS1500 Uninterruptible Power Supply ....................................................1
Overview .................................................................................................................. 1
Features.................................................................................................................... 1
Product Specifications ............................................................................................. 2
Front Panel LCD........................................................................................................ 3
IMPORTANT SAFETY INSTRUCTIONS ................................................................5
Important Notice ...................................................................................................... 5
Storage Instructions.................................................................................................. 5
Assembling the Battery Pack ..............................................................................7
Overview .................................................................................................................. 7
Accessing the Battery Compartment - Step One ........................................................... 8
Accessing the Battery Compartment - Step Two ........................................................... 8
Accessing the Battery Compartment - Step Three ......................................................... 9
Mounting the NXA-UPS1500 ............................................................................11
Place the UPS Properly ........................................................................................... 11
Unpacking............................................................................................................... 11
Accessories for Tower and Rack Mount ........................................................................ 11
Selecting Installation Position................................................................................. 12
UPS Setup............................................................................................................... 12
Tower Setup ........................................................................................................... 13
Tower Setup - Step One ............................................................................................... 13
Tower Setup - Step Two ............................................................................................... 13
Rack-Mount Setup .................................................................................................. 14
Rack-Mount Setup - Step One ...................................................................................... 14
Rack-Mount Setup - Step Two ...................................................................................... 14
Rack-Mount Setup - Step Three ................................................................................... 15
Rack-Mount Setup - Step Four ..................................................................................... 15
Rack-Mount Setup - Step Five ...................................................................................... 16
Connecting the UPS .........................................................................................17
Connect Utility and Load ........................................................................................ 17
Connect Network Surge Protection........................................................................ 18
Connect the RS-232 Communication Port............................................................... 18
RS-232 Communication Port Pin Assignment................................................................ 19
Operation .........................................................................................................21
Turn On the UPS..................................................................................................... 21
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Table of Contents
Turn Off the UPS..................................................................................................... 21
Plug-In Charge ........................................................................................................ 21
Auto-Restart ........................................................................................................... 21
Alarm Silence.......................................................................................................... 21
Self Test.................................................................................................................. 21
Battery Replacement ........................................................................................23
Overview ................................................................................................................ 23
Assembling the Battery Pack......................................................................................... 23
Replacing the UPS Battery - Step One .......................................................................... 23
Replacing the UPS Battery - Step Two .......................................................................... 24
Replacing the UPS Battery - Step Three........................................................................ 24
Recycling the Used Battery ........................................................................................... 24
NXA-UPS1500 EPM Installation ........................................................................25
Overview ................................................................................................................ 25
IMPORTANT SAFETY INSTRUCTIONS .................................................................... 25
SAVE THESE INSTRUCTIONS ........................................................................................ 25
IMPORTANT NOTICE .................................................................................................... 26
EPM Specifications.................................................................................................. 26
EPM - Installation and Operation............................................................................ 27
Unpacking ..................................................................................................................... 27
Selecting Installation Position........................................................................................ 27
EPM Installation Instructions................................................................................... 28
Tower Installation - Step One ....................................................................................... 28
Tower Installation - Step Two ....................................................................................... 28
Using the EPM With The UPS.................................................................................. 29
Use With UPS - Step One ........................................................................................... 29
Use With UPS - Step Two ........................................................................................... 29
EPM - Rack Mount Installation ................................................................................ 30
Rack Mount Installation - Step One .............................................................................. 30
Rack Mount Installation - Step Two .............................................................................. 30
Rack Mount Installation - Step Three ............................................................................ 31
Rack Mount Installation - Step Four ............................................................................. 31
Connecting the EPM To the UPS ............................................................................ 32
EPM - Storage Instructions ..................................................................................... 32
Replacing the Battery In the EPM........................................................................... 33
Replacing the Battery in the EPM - Step One .............................................................. 33
Replacing the Battery in the EPM - Step Two .............................................................. 33
Replacing the Battery in the EPM - Step Three ............................................................ 34
Replacing the Battery in the EPM - Step Four .............................................................. 34
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NXA-UPS1500 Uninterruptible Power Supply
NXA-UPS1500 Uninterruptible Power Supply
Overview
The NXA-UPS1500 is an Uninterruptible Power Supply (UPS) featuring Double AVR Boost and Double
Buck, Pure Sine Wave Output, LCD Display and Hot-Swappable Battery. The NXA-UPS1500 supports
RS232 control.
The NXA-UPS1500 UPS is available in two models - the 120V version (FG678-15) is suitable for use in
the US, and the 220V version (FG678-20), for International usage.
The NXA-UPS1500 features tower/rack-convertible design making it ideal for use with AMX’s line of
MAX devices (FIG. 1).
Release tabs
Battery Compartment
Front Panel LCD
(front)
Input Breaker
Output Breaker
RS232 Communication Port
(rear)
Power Outlets
Input Power Socket (Inlet)
External Battery Terminal
RJ-45 Ports (Network Surge Protection)
USB Communication Port
DIP Switch
FIG. 1 NXA-UPS1500 Uninterrupted Power Supply
Features
ꢀ
Sine Wave Output provides assurance of compatibility with all kinds of loads.
ꢀ
LCD panel displays system status including load level, battery level, AVR-Boost/Buck and
fault status for easy service.
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90% High Efficiency in Normal Mode meets high energy saving standard and reduces noise
and heat generated by other topology UPS.
Easy Swappable Battery Function may save the time and money by swapping the batteries by
end-user without sending it back for a factory service.
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Cold Start Function enables to turn on the UPS without connecting to the Utility.
User-friendly Plug and Play design can easily be installed.
The NXA-UPS1500 EPM Extended Power Module (FG 678-15), available as an optional
accessory, works with the NXA-UPS1500 to increase the duration of backup power, providing
up to 3X additional battery run time.
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NXA-UPS1500 Uninterruptible Power Supply
Product Specifications
NXA-UPS1500 Product Specifications
Input:
Voltage Window (DIP Switch selectable):
120V version (FG678-15): 110/115/120 Vac +35% ˜ -32%
240V version (FG678-20): 220/230/240 Vac +35% ˜ -32%
Frequency: 45 ˜ 65Hz (50/60Hz auto-sensing)
Voltage Window (AC Mode):
Output:
120V version (FG678-15): 110/115/120 Vac +8% ˜ -12%
240V version (FG678-20): 220/230/240 Vac +8% ˜ -12%
Voltage Window (INV Mode):
120V version (FG678-15): 110/115/120 Vac +/-5%
240V version (FG678-20): 220/230/240 Vac +/-5%
• Capacity (VA/W):1500/900
• Wave Form: Pure sine wave
• Frequency: 50Hz/60Hz +/-0.1Hz
• Transfer Time:2 ms typical
• Autonomy: > 8 min.
• DC Start: Yes
Battery:
• Type: 12V, sealed lead acid maintenance-free
• Capacity: 9AH
• Quantity: 4 12V batteries required
• Voltage:
120V version (FG678-15): 24 Vdc
240V version (FG678-20): 48 Vdc
• Recharge Time: 2 ˜ 4 hours to 90%
• Storage: Store at -15 to +30 °C (+5 to +86 °F), charge the UPS battery every 6
months / Store at +30 to +45 °C (+86 to +113 °F), charge the UPS battery every
3 months.
LED indicators:
Display LCD:
• Utility mode
• Backup mode
• Battery conditions
• Load level (%)
• Battery level (%)
• Bypass
• AVR-Boost/AVR Buck
• Battery Low/Replace/Fault
• UPS Fault
• Site Wiring Fault
• Overload
Overload Protection:
• AC Mode: >110% Buzzer continuously alarms, and shuts down in 10 minutes.
• Inverter Mode: >120% Buzzer continuously alarms, and shuts down in 10
seconds.
Short Circuit Protection: • AC Mode: Breaker and electronic circuit
• Inverter Mode: Shut down automatically in 8 cycles
Self-Diagnostics:
Alarms:
• Upon Power-on
• Line Failure
• Battery Low
• Overload and Fault
Operation Environment: • Temperature: 32° - 104°F (0-40° C)
• Operation Humidity: 95% RH Maximum, non-condensing
•
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NXA-UPS1500 Uninterruptible Power Supply
NXA-UPS1500 Product Specifications (Cont.)
Dimensions (HWD):
• 3.46” x 17.32” x 18.97” (8.80cm x 44.0cm x 48.2 cm)
• 2U rack height
Control Communication: • RS-232
Weight (with batteries): • 70.3 lbs (31.89 kg)
Certifications:
• EN50091-1-1:1996 (Safety)
• FCC Part 15, Subpart B - Class A
• UL: YEDU.E166979
Included Accessories:
Other AMX Equipment:
• AC Input Power Cord
• Tower and rack-mounting accessories
• NXA-UPS1500 EPM Extended Power Module (FG 678-16)
• NXA-UPS1500ECJ, European Cable Jumpers (FG 678-17)
• NXA-UPS1500UKCJ, United Kingdom Cable Jumpers (FG678-18)
• NXA-UPS1500ACJ, Australian Cable Jumpers (FG678-19)
Front Panel LCD
FIG. 2 describes the elements of the front panel LCD:
12 5 13 2
8
9 10 11
6
1. Utility (Green LED)
2. Fault (Red LED)
3. On Switch
4. Off Switch
5. Battery Replacement
6. Battery Backup (Amber LED)
7. Battery Low
1
7
8. Bypass
14
9. Utility Low, UPS Boost
10. Utility High, UPS Buck
11. UPS Output Indicator
12. Polarity Error or Ground Fault
13. Overload
14. Load/Battery Level (%)
15. Load/Battery Level
Indication Control Button
3
4
15
6
2
1
FIG. 2 Elements Of The Front Panel LCD
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NXA-UPS1500 Uninterruptible Power Supply
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IMPORTANT SAFETY INSTRUCTIONS
IMPORTANT SAFETY INSTRUCTIONS
Important Notice
ꢀ
The UPS has its own internal energy source (battery). Should the battery be switched on when
no AC power is available, there could be voltage at the output sockets.
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ꢀ
ꢀ
ꢀ
Make sure that the AC Utility outlet is correctly grounded.
Do not open the case, as there are no serviceable parts inside. Your warranty will be void.
Please make sure that the input voltage of the UPS matches the supply voltage.
To eliminate any overheating of the UPS, keep all ventilation openings free from obstruction,
and do not store "things" on top of the UPS. Keep the UPS 30cm away from the wall.
ꢀ
Make sure the UPS is installed within the proper environment as specified (0-40° C and 30-
90% non-condensing humidity).
ꢀ
ꢀ
ꢀ
ꢀ
Do install the UPS in direct sunlight.
Install the UPS indoors as it is not designed for installation outdoors.
Dusty, corrosive and salty environments can do damage to any UPS.
Install the UPS away from objects that give off excessive heat and areas that are excessively
wet.
ꢀ
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The battery will discharge naturally if the system is unused for any length of time.
It should be recharged every 2-3 months if unused. When installed and being used, the
batteries will be automatically recharged and kept in top condition.
ꢀ
ꢀ
Do not install the UPS in an environment with sparks, smoke or gas.
Make sure the UPS is completely turned off when moving the UPS from one place to another.
It might cause electrical shock if the output is not cut completely.
Storage Instructions
For extended storage through moderate climate, the batteries should be charged for 12 hours every 3
months by plugging the UPS power cord into the wall receptacle and turn on input breaker on front
panel.
Repeat this procedure every 2 months under high temperature environment.
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IMPORTANT SAFETY INSTRUCTIONS
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Assembling the Battery Pack
Assembling the Battery Pack
Overview
The UPS battery needs to be assembled before installation: the battery pack consists of four individual
batteries, a connector wiring package (one large wire harness with two black and two red wires attached
to a four-pin connector and two separate red wires), and the aluminum battery case components.
Each battery has color-coded contacts, with red for "positive" and black for "negative". Each battery will
lie on its side in the battery case, as part of a pair, with the contacts of one at the opposite end as the
contacts of the other. The completed battery case will not slide into the unit when wired if the batteries
FIG. 3 Connecting the batteries to each other and to the 4-pin connector
1. Remove the batteries from their packing material and stand them upright on the bottom of the
battery case, making two pairs. Alternate the batteries so the contacts of one in each pair are
2. With the contacts facing up, take the large wire harness (the one with the yellow 4-pin connector at
one end) and connect each pair to the assembly. Make sure that the color of each wire, red or black,
matches the color of the battery contact. Only attach one wire from the harness to each battery.
When attaching the wire harness to the battery pairs, note the red-black wire pairs
coming from the connector. The black and red wires in each set emerging from the
connector must be attached to its matching contact in only one battery pair;
connecting a red wire to one battery pair and a black wire to the other battery pair will
not complete the circuit and the battery pack will not work.
3. The remaining two wires from the wiring package complete the serial circuit. Connect the red wire
first to a red contact on one battery and then to a black contact on the other in the pair. Likewise,
connect the black wire first to the remaining black contact, then to the remaining red contact in the
second pair.
4. At this point, flip the batteries so that their wide and long sides face down. Make sure that the
contacts of each battery face the side containing contacts on the other in its pair. Gently put tension
on the wires to take up any slack; the wire harness should be hanging to one side. The wires
themselves should run between the battery pairs until they emerge from the side. If any wire should
hang over the top of the batteries, gently press it down between the batteries to keep it out of the
way.
5. Assemble the battery case around the battery pairs. When installing the battery in the unit, the wire
assembly will hang out from the right side of the battery pack.
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Assembling the Battery Pack
Accessing the Battery Compartment - Step One
FIG. 4 Replacing the Battery - Step 1
Accessing the Battery Compartment - Step Two
FIG. 5 Replacing the Battery - Step 2
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Assembling the Battery Pack
Accessing the Battery Compartment - Step Three
4-pin connector power
connector inside the enclosure
Metal securing piece
4-pin connector from the
battery wiring harness
FIG. 6 Remove the two screws that secure the Battery Compartment Cover. Remove the metal securing piece,
connect it to the battery cable harness, and connect the harness to the matching connector inside the unit.
1. Remove the Release tabs on the front panel to expose the screws that secure the Battery
Compartment Cover.
2. Remove the screws beneath the Release tabs.
3. Remove the two screws that secure the Battery Compartment Cover
4. Remove the Battery Compartment Cover to access the Battery Compartment.
5. Remove the screw holding the metal securing piece in place.
6. Slide the metal securing piece into the groove on the 4-pin connector (red) from the battery cable
harness.
7. Connect the 4-pin connector to the matching connector inside the unit.
8. Reattach the metal securing piece above the connector with the screw.
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Assembling the Battery Pack
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Mounting the NXA-UPS1500
Mounting the NXA-UPS1500
Place the UPS Properly
The UPS should be placed in a well-ventilated & low humid environment.
Unpacking
1. Take the UPS out of the PE foam.
2. Remove the packing materials.
3. Standard Package includes:
ꢀ
ꢀ
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Installation Guide
AC Input Power Cord
Accessories for Tower and Rack Mount
Accessories for Tower and Rack Mount
FIG. 7 shows the accessories for tower and rack-mounting the UPS:
FIG. 7 Accessories for Tower and Rack Mount
This unit may require at least two people to install due to its weight.
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Mounting the NXA-UPS1500
Selecting Installation Position
It is necessary to select a proper environment to install the unit, in order to minimize the possibility of
• Keep at least 20cm (8") clearance from the rear panel of the
UPS from the wall or other obstructions.
• Do not block the air-flow to the ventilation openings of the
unit.
• Please ensure that the installation site environmental
conditions are in accordance with the UPS working
specifications to avoid overheat and excessive moisture.
• Do not place the UPS in a dusty or corrosive environment or
near any flammable objects.
• This UPS is not designed for outdoor use.
FIG. 8 Selecting Installation Position
UPS Setup
The UPS offers a flexible form factor enabling integration into a wide variety of environments (FIG. 9).
The UPS with space-saving design only occupies 2 RU.
FIG. 9 UPS Setup
If you are installing the UPS in a tower, continue to the following section, "Tower Setup", otherwise;
continue to "Rack-Mount Setup".
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Mounting the NXA-UPS1500
Tower Setup
Tower Setup - Step One
FIG. 10 Tower Setup - Step 1
Tower Setup - Step Two
FIG. 11 Tower Setup - Step 2
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Mounting the NXA-UPS1500
Rack-Mount Setup
Rack-Mount Setup - Step One
FIG. 12 Rack-Mounting the UPS. - Step 1
Rack-Mount Setup - Step Two
FIG. 13 Rack-Mounting the UPS. - Step 2
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Mounting the NXA-UPS1500
In order to mount the NXA-UPS1500 into an equipment rack, you must use a rack
Rack-Mount Setup - Step Three
Rack shelf required, not included with the UPS
FIG. 14 Rack-Mounting the UPS. - Step 3
Rack-Mount Setup - Step Four
FIG. 15 Rack-Mounting the UPS. - Step 4
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Connecting the UPS
Connecting the UPS
Connect Utility and Load
First, connect the UPS with Utility, then plug the loads into the Outlets on the rear of the UPS (FIG. 17).
To use the UPS as a master “On/Off” switch, make sure that all of the loads are switched “on”.
These UPS outlets provide battery backup and surge protection to the equipment when Utility voltage is
out of window.
NetLinx / MAX Equipment
UPS
Touch Panels
FIG. 17 Plug The Loads Into the UPS
Do not connect a laser printer to the UPS outlets!
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Connecting the UPS
Connect Network Surge Protection
Connect a 10Base-T/100 Base-T network cable to the RJ45 network surge protection "IN" jack on the
rear of the UPS. Connect from the "OUT" jack with network equipment (FIG. 18).
FIG. 18 Connect Network Surge Protection
If using the NXA-UPS1500 as part of a MAX system, do not run the A/V segment of
the network through the RJ45 network surge protection jack on the UPS. The A/V
segment of a MAX network requires a GB Ethernet switch, and the NXA-UPS1500
only provides a 10/100 connection. You can connect the Control segment of the MAX
network to the UPS, since it does not require a GB connection to operate properly.
Connect the RS-232 Communication Port
Connect the supplied RS-232 interface cable between the RS-232 port on the rear of the UPS and an
available RS-232 port on the NetLinx Master (FIG. 19).
FIG. 19 Connect RS-232 Communication Port
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Connecting the UPS
RS-232 Communication Port Pin Assignment
The NXA-UPS1500 provides a DB9F (9-pin female) connector to communicate via RS-232. The pinout
configuration for the RS-232 Communication Port connector is shown in FIG. 20:
NetLinx
UPS
Pin 2: TX signal
Pin 3: RX signal
Pin 5: GND
9
8
9
8
Pin 2: RX signal
Pin 3: TX signal
Pin 5: GND
5
4
3
2
1
5
4
3
2
1
7
6
7
6
(Female)
(Male)
RX (Pin 2)
TX (Pin 3)
GND (Pin 5)
TX (Pin 2)
RX (Pin 3)
GND (Pin 5)
FIG. 20 RS-232 Communication Port Pin Assignment
RS-232 Communication Port Pin Assignment
Pin
1
Assignment Description
n/c
2
UPS TX signal
3
UPS RX signal
4
n/c
5
GND (ground)
6
7
8
9
n/c
n/c
n/c
n/c
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Connecting the UPS
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Operation
Operation
Turn On the UPS
1. Connect the UPS to the wall receptacle. LCD will display “OFF”, when Utility is normal. If there is
nothing on the LCD, go to step 3.
2. Push the “On” Switch on the front panel to start the UPS. Both the LCD and Utility LED (Green)
are lit. The start-up procedure is completed and the loads are supplied by the UPS.
3. To cold start the UPS, press the “On” Switch on the front panel for approximately 3 seconds until
the LCD lights up and buzzer sounds, then release the “On” Switch. The UPS starts operating and
Battery Backup LED (Amber) lights up. The cold start-up procedure is completed and the loads are
supplied by the UPS.
4. The UPS will run under Backup mode and the buzzer alarms every 2 seconds in case of blackout or
over/under voltage. On the contrary, If Utility is back to normal and then the UPS will run under
Utility mode and silence alarm.
Turn Off the UPS
1. Press the “Off” Switch for at least 3 seconds to turn off the UPS. If you press the “Off” Switch less
than 3 seconds, the UPS will not execute shutdown command due to insufficient pressing time.
2. In some occasions, the UPS will shut itself down in case of overload, output short-circuit or battery
cutoff point reached in the Backup mode.
3. The UPS will automatically shut off the output and beep for 5 seconds then completely shut itself
down.
Plug-In Charge
1. If the Input Power Cord is connected to the wall receptacle properly and the utility is normal, the
UPS will start charging automatically without processing “Turn On” procedure.
2. You have to charge for at least 8 hours every 3 months to avoid from battery self over-discharge
naturally, if the UPS is in an idle condition.
Auto-Restart
If the Input Power Cord is connected to the wall receptacle properly and Utility is back to normal, the
UPS will automatically restart to provide energy to the output after battery cut.
Alarm Silence
1. The Alarm might be turned off by pressing the “On” Switch for approximately 1 second in the
“Backup” mode.
2. Unless any other warning or fault condition occurs, the alarm remains at Silence condition once the
“Alarm Silence” is turned off.
Self Test
1. Under Utility Normal condition, press the “On” Switch for 3 seconds to execute the Battery Self-
test function.
2. In case the battery is normal, it will enter into the Battery Backup Mode for 10 seconds then return
to Utility Mode.
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Operation
3. If the battery voltage is detected lower than set limit, the Battery Replacement mark will blink for 5
times then extinguish to stop self-test procedure. And if battery is detected weak or dead, the
Battery Replacement mark will steadily illuminate.
The UPS will remain at “NO” output, if the start-up operation is not proceeded
properly even though the Input Power Cord is connected to the wall receptacle.
IMPORTANT - Plug the UPS onto the wall receptacle to charge the UPS for over
8 hours after initial installation.
Store at -15 to +30 °C (+5 to +86 °F), charge the UPS battery every six months.
Store at +30 to +45 °C (+86 to +113 °F), charge the UPS battery every three months.
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Battery Replacement
Battery Replacement
Overview
1. When the Battery Replacement LED (Red) lights up, you may leave the UPS to be re-charged for at
least 8~10 hours to see whether the Red LED will be extinguished after the Self-Test function is
executed again.
2. In case the Red LED remains unchanged, you may unscrew the Hot Swappable Battery cover to
replace a new battery, then press the “On” Switch to disable the Red LED.
Once the battery is disconnected, the loads are not protected from power outages.
Assembling the Battery Pack
The UPS battery needs to be assembled before installation: the battery pack consists of four individual
batteries, a connector wiring package (one large wire harness with two black and two red wires attached
to a four-pin connector and two separate red wires), and the aluminum battery case components.
Replacing the UPS Battery - Step One
FIG. 21 Replacing the Battery - Step 1
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Battery Replacement
Replacing the UPS Battery - Step Two
FIG. 22 Replacing the Battery - Step 2
Replacing the UPS Battery - Step Three
Disconnect the four-pin power connector from the battery wiring harness from the power connector
FIG. 23 Replacing the Battery - Step 3
Recycling the Used Battery
Contact your local recycling or hazardous waste center for information on proper disposal of the used
battery.
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NXA-UPS1500 EPM Installation
NXA-UPS1500 EPM Installation
Overview
NXA-UPS1500 EPM Extended Power Module (FG 678-15) works with the NXA-UPS1500 to increase
Screw covers
Screw covers
To replace batteries, remove the screw covers and the screws inside the covers
(front)
EXT.BAT. terminal
(to second or next EPM)
(rear)
Grounding screw
(connects the Grounding
wire to the NXA-UPS1500)
Grounding screw
(connects the Grounding
wire to the second or next EPM)
.
UPS BAT. terminal
(to the NXA-UPS1500)
FIG. 24 NXA-UPS1500 EPM Extended Power Module (optional accessory)
IMPORTANT SAFETY INSTRUCTIONS
SAVE THESE INSTRUCTIONS
This manual contains important instructions that should be followed during installation and maintenance
of the EPM and batteries.
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NXA-UPS1500 EPM Installation
IMPORTANT NOTICE
ꢀ
The EPM which is supplied with a factory input plug can be safely connected to the wall
receptacle.
ꢀ
This EPM is connected to an UPS. There will be voltage at the output terminals if the UPS is
turned on even if the input AC Mains is not available.
ꢀ
ꢀ
Make sure that the AC Utility outlet is correctly grounded.
Use a certified input power cable with the correct plugs and sockets for the appropriate
voltage system.
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To eliminate any overheating of the EPM, keep all ventilation openings free from obstruction
and do not place any foreign objects on top of the EPM.
Keep the EPM 20 cm away from the wall.
Make sure the EPM is installed within the proper environment as specified.
(0-40°C and 30-90% non-condensing humidity)
ꢀ
ꢀ
ꢀ
This EPM is designed for indoor use only.
This EPM is not designed for use in dusty, corrosive and salty environment.
The battery will discharge naturally if the system is unused for a period of time.
ꢀ It should be recharged every 2-3 months if unused. During normal operation, the batteries will
automatically remain in charged condition.
ꢀ
ꢀ
ꢀ
When replacing batteries, replace with the same quantity, type & capacity.
CAUTION - Do not dispose of battery or batteries in an open fire. The battery may explode.
CAUTION - Do not open or mutilate the batteries. The electrolyte from the batteries is toxic
and harmful to the skin and eyes.
ꢀ
ꢀ
CAUTION - Risk of Electric Shock - Battery circuit is not isolated from AC, hazardous
voltage may exist between battery terminals and ground. Test before touching with bare
hands.
CAUTION - A Battery can present a risk of electrical shock and high short circuit current.
The following precautions should be observed when working on batteries:
a. Remove watches, rings, or other metal objects.
b. Use tools with insulated handles.
c. Wear rubber gloves and boots.
d. Do not lay tools or metal parts on top of batteries.
e. Disconnect charging source prior to connecting or disconnecting battery terminals.
EPM Specifications
EPM connectors are color coded as shown below. Do not try to install the EPM with
connectors that are a different color from the EPM connector in the UPS.
ꢀ
ꢀ
Nominal System Voltage: 24V
Connector color: Red(+), Black (-)
26
NXA-UPS1500 Uninterruptible Power Supply
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NXA-UPS1500 EPM Installation
EPM - Installation and Operation
The packing condition and the external outlook of the unit should be inspected carefully before
installation. Retain the packing material for future use.
Unpacking
1. Take the EPM out of the PE foam.
2. Remove the packing materials.
The EPM module is approx. 12.5~50 kgs, be cautious when unpacking and lifting the
unit to avoid injury.
FIG. 25 EPM Accessories for Tower and Rack Mount
Selecting Installation Position
It is necessary to select a proper environment to install the unit, in order to minimize the possibility of
damage to the EPM and extend the life of the batteries. Please follow the instructions below:
1. Keep at least 20cm (8 inches) clearance from the rear panel of the EPM from the wall or other
2. Do not block the air-flow to the ventilation openings of the unit.
3. Please ensure the installation site environmental conditions are in accordance with the EPM
4. Do not place the EPM in a dusty or corrosive environment or near any flammable objects.
5. This EPM is not designed for outdoor use.
27
NXA-UPS1500 Uninterruptible Power Supply
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NXA-UPS1500 EPM Installation
EPM Installation Instructions
Tower Installation - Step One
FIG. 26 EPM - Tower Installation - Step 1
Tower Installation - Step Two
FIG. 27 EPM - Tower Installation - Step 2
28
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NXA-UPS1500 EPM Installation
Using the EPM With The UPS
Use With UPS - Step One
FIG. 28 Use With UPS - Step 1
Use With UPS - Step Two
FIG. 29 Use With UPS - Step 2
29
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NXA-UPS1500 EPM Installation
EPM - Rack Mount Installation
Rack Mount Installation - Step One
FIG. 30 Rack Mount Installation - Step 1
In order to mount the EPM into an equipment rack, you must use a rack shelf (not
Rack Mount Installation - Step Two
FIG. 31 Rack Mount Installation - Step 2
30
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NXA-UPS1500 EPM Installation
Connecting the EPM To the UPS
FIG. 34 illustrates connecting the DC Cable on the EPM(s) to the UPS:
FIG. 34 Connect DC Cable
EPM - Storage Instructions
For extended storage through moderate climate(-15 to +30 °C / +5 to +86 °F), the batteries should be
charged for 12 hours every 6 months by plugging the UPS power cord into the wall receptacle.
Repeat this every 3 months under high temperature (+30 to +45 °C / +86 to +113 °F) environment.
32
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NXA-UPS1500 EPM Installation
Replacing the Battery In the EPM
Replacing the Battery in the EPM - Step One
FIG. 35 Replacing the Battery in the EPM - Step 1
Replacing the Battery in the EPM - Step Two
FIG. 36 Replacing the Battery in the EPM - Step 2
33
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NXA-UPS1500 EPM Installation
Replacing the Battery in the EPM - Step Three
FIG. 37 Replacing the Battery in the EPM - Step 3
Replacing the Battery in the EPM - Step Four
FIG. 38 Replacing the Battery in the EPM - Step 4
34
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UPS Maintenance
35
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