Download from Www.Somanuals.com. All Manuals Search And Download.
Download from Www.Somanuals.com. All Manuals Search And Download.
Download from Www.Somanuals.com. All Manuals Search And Download.
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(5) Near high voltage power lines or where inductive
interference can affect the operation of the product.
(6) Dew drops or direct exposure to sun light.
(7) Where the elevation is in excess of 2,000 m.
Dimension of current transformer (CT) for heater break
alarm
• For 0-30A (CTL-6-S)...................................For 0-50A (CTL-12-S36-8)
φ 2.36
30
2.36
2.8
15
Note: The environmental conditions belong to the installation
φ 5.8
category II of IEC 664 and the degree of pollution is 2.
21
2-2. Mounting
φ 12
2- φ 3.5
(1) Machine the mounting hole by referring to panel cutout in
section 2-4.
(2) Applicable thickness of the mounting panel is from 1.0 to 3.5
mm.
30
40
2-M3 depth 4
30
40
(3) As this product provides mounting fixture, insert the product
from the front panel for installation.
(unit : mm)
2-5. Wiring
2-3. How to remove the instrument out of the case
WARNING
CAUTION
• Always disconnect this product from any power source
during wiring operation to prevent electrical shock.
• Be certain that the protective conductor terminal ( ) is
properly grounded. Otherwise, a serious electric shock may
result.
When the instrument is removed/replaced in the case, make sure
the power is off. If it is done while the power is on, it may lead
to problems with the product and/or other problems.
There is no need to remove your
CN150 series controllers out
of the case. Nevertheless, should the
• Avoid touching the wired terminal and charged devices while
supplying power.
PV
need arise, for example, for
replacement, follow the steps
described below:
˚C
SV
(1) Wiring operation should be done according to the instruction
for the terminal arrangement in section 2-6. Exercise care
that no wrong connection is made.
(2) Crimp terminal should accommodate the M3.5 screw and
should have a width of less than 7mm.
(3) For thermocouple input, select the compensation wire
suitable to the thermocouple type.
(4) For R. T. D. input, leads should be less than 5Ω in resistance
and three leads should have the same resistance.
(5) Input signal line should be conducted safely apart from the
high voltage power line.
OUT AT
AH AH/HB MAN STBY COM
Insert a minus screwdriver of 6mm ~
9mm into the opening (where
packing is exposed) of the front case
and rotate the screwdriver while
pushing up the lock lever behind the
packing. Once the instrument comes
out by a few millimeters, you can
remove it by hand.
ENT
MAN
(6) Shield wiring (single point grounding) is effective for static
induction noise.
2-4. External dimensions and panel cutout
CN154/CN155 External dimensions
CN154/CN155 Panel cutout
(7) Short interval twisted pair wire for input signal is effective
for electromagnetic induction noise.
(8) For power line, use wire or cable which is 1mm or more in
110
130 min.
10
100
2
sectional area and of which the performance is equal to or
higher than that of 600V vinyl insulated wire.
92+0.8
0
(9) Earth grounding should be performed with earth resistance
2
less than 100Ω and with wire thicker than 2mm .
96
91.6
2-6. Terminal arrangement
SR73A
422A 485
L
1
2
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
11
12
13
14
15
16
17
18
19
20
SG
SG
+
CN158/CN159 External dimensions
CN158/CN159 Panel cutout
Power
SB
CT
110
N
SD+
SD–
RD+
RD–
10
100
45+0.6
0
3
–
(48 x N-3) +1.0
0
4
COM+
CONTROL
OUTPUT
5
NO
NC
–
height 91.6
92+0.8
0
height 96
×
6
×
width 44.6
width 48
7
+A
TC•mV
V•mA
–B
8
COM
AH
When N pieces are
installed laterally.
N= number
ALARM
OUTPUT
9
B
10
AL/HB
(unit : mm)
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CN158/CN159
3-2. Instruction for front panel
422A 485
: Measured value (PV) display (green)
(1) Displays current measured value on the mode 0 basic
screen.
ꢀ
ꢁ
ꢂ
L
1
2
11
12
13
14
15
16
17
18
19
20
SG
SG
+
Power
21
22
N
SD+
SD–
RD+
RD–
SB
3
(2) Displays parameter type on each parameter screen.
–
4
COM+
: Set value (SV) display (orange)
CONTROL
OUTPUT
5
NO
NC
–
(1) Displays set value on the mode 0 basic screen.
(2) Displays selected item and set value on each parameter
screen.
6
7
+A
TC•mV
V•mA
–B
8
COM
AH
: Monitor LED
CT
ALARM
OUTPUT
9
(1) OUT (output) monitor LED (green)
• For contact or SSR drive voltage output, a light turns
on for output ON and turns off for output OFF.
• For current or voltage output, the light intensity
changes proportionally to the output altitude.
(2) AT (auto tuning) monitor LED (green)
23
24
B
10
AL/HR
2-7. Terminal arrangement table
Terminal number
CN150 Series
• On selection by
, ON turns on AT waiting
Name of terminal and description
ENT
(
key), flashes on AT execution.
(3) AH alarm output monitor LED (red)
• Turns on for higher limit alarm output ON.
(4) AL/HB alarm output monitor LED (red)
• Turns on for lower alarm output ON or heater break
alarm ON.
(5) MAN (manual control output) monitor LED (green)
• Flashes when control output is in manual operation.
(6) STBY (control output stop) monitor LED (green)
• Turns on when the control output stop mode is
selected.
Power terminal
100-260V AC±10% 50/60Hz 12VA
11-12
13
Protective conductor terminal (
)
Input terminal
R. T. D. A, Thermocouple, Voltage, Current +
R. T. D. B, Thermocouple, Voltage, Current –
R. T. D. B
7
8
10
Output terminal
Contact: COM, SSR Drive voltage, Voltage,
Current +
Contact: NO, SSR Drive voltage, Voltage,
Current –
14
15
16
(7) COM (communication) monitor LED (green)
• Turns on when the remote communication mode is
selected.
Contact: NC
Communication terminal
: Key switches
ꢃ
For RS-422A
SG
For RS-485
(1)
(parameter) key
1
2
3
4
5
SG
+
• Press on set screen to move to next set screen.
• Keep pressing three (3) seconds for function of move
key between basic screen of the mode 0 screen group
and direct call screen of mode 1 screen group.
(down) key
• Press on the set screen to flash the point of the least
digit and to reduce data or back increment data.
(up) key
SD+
SD–
RD+
RD–
–
(2)
(3)
(4)
Alarm output (option) terminal
COM Contact rating 240V AC 1.5A
(resistive load)
18
AH
Higher limit alarm
19
20
AL/HB Lower limit alarm or heater break alarm
• Press on the set screen to flash the point of the least
digit and to increase data of increment data.
Set value bias (option) input terminal
21-22
23-24
ENT
(entry/registration) key
Heater break alarm (option) CT input terminal
• Press on the set screen of the mode 0 screen group
and mode 1 screen group to fix the data changed by
the
Note: For Thermocouple, Voltage, and Current input,
measurement error results by connection between B and
B terminal.
,
keys and to extinguish flash of the point.
• The function selecting screen, of the mode 2 screen
group, registers data of the point flashing digit and
simultaneously shifts a data changeable digit (the
point flashing digit).
• The input scaling screen, of the mode 2 screen group,
registers data and shifts a parameter capable of being
set (in the row in which the rightmost point is
flashing).
• Press the key for five seconds and it functions to
change the basic screen of the mode 0 screen group to
the function selecting screen of the mode 2 screen
group and vice versa.
3. Instruction for front panel
3-1. Drawing and the name of the parts
This is an example of the front panel of CN154/CN155.
Name of parts
: Measured value
(PV) display
: Set value (SV)
display
: Monitor LED
: Key switches
ꢀ
PV
1
ꢁ
˚C
SV
MAN
(5)
(manual) key
2
ꢂ
ꢃ
• Pressing this key on the control output screen changes
automatic control output to manual control output and
vice versa. During manual control output, the MAN
monitor LED flashes.
OUT
AT
AH AH/HB
MAN STBY
COM
3
4
ENT
MAN
MAN
• The
key does not function in the control output
stop mode.
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(3) Screen change within mode 0 screen group
• By pressing the key, the screen changes.
(4) Screen change within mode 1 screen group
4. Screen instruction
4-1. Power on and initial screen display
• Two methods are used for screen change within mode 1
After turning on power, the display shows each power on initial
screen for approx. 1.5 seconds, then moves into the basic screen
of the mode 0 screen group.
screen group. One is to press the
key as shown on
above mode 0 screen group. The other is to mode the
screen directly by indicating screen No. on the top direct
call screen.
Example: Direct calling the screen No.8 PV bias value set
screen
Turning
on power
,
Series type (
Input type (
)
: Thermocouple,
: Voltage (mV),
: R. T. D.,
: Voltage (V),
1-0 direct call screen
1-0 direct call screen
1-8 PV bias value set screen
ENT
key
: Current (mA))
key
Displays output screen
Control output type : Contact
: Current
several times
: SSR drive voltage
: Voltage
point flashes
(5) Selecting and setting digit to change of function selecting
screen of mode 2 screen group
Lower limit of the selected measuring range
Higher limit of the selected measuring range
• When the function selecting screen is displayed, the point
of selectable digit flashes.
Mode 0 screen group basic screen
Measured value (PV)
Set value (SV)
• By pressing
point is flashing) moves.
key, the selectable digit (digit whose
ENT
• In case of changing the set value, flash the point to be
ENT
changed with
key, select data with the keys and
4-2. Alarm type code table
press key again to register the set value and move
selectable digit.
Example: changing the control output characteristics from
(heating) to (cooling)
With/Without AL/HB
With/Without
AH
Alarm code
inhibit action assignment inhibit action
assignment
Not assigned
– – – – –
Not assigned
– – – – –
0 (
1 (
2 (
3 (
4 (
5 (
6 (
7 (
8 (
)
)
)
)
)
)
)
)
)
Without
inhibit action
Without
inhibit action
Higher limit
deviation value
Higher limit
absolute value
Lower limit
deviation value
ENT
ENT
key
key
key
Lower limit
absolute value
Without
inhibit action
Without
inhibit action
Higher limit
deviation value
Higher limit
absolute value
Lower limit
deviation value
With
inhibit action
With
inhibit action
Lower limit
absolute value
With
inhibit action
With
inhibit action
* “.” on the screen shows the selectable digit (digit whose
point is flashing).
Higher limit
deviation value
Higher limit
absolute value
Without
Heater break
Heater break
Heater break
Heater break
– – – – –
– – – – –
– – – – –
– – – – –
inhibit action
Without
inhibit action
ENT
Note: In case of changing data and pressing
key longer
than 5 seconds, the screen moves to mode 0 basic screen
without a data registration. It requires a data verification
Higher limit
deviation value
Higher limit
absolute value
With
inhibit action
With
inhibit action
ENT
with
key and screen change.
(6) Shifting setting items on input scaling screen of mode 2
screen group and setting method
Note: In the above table, the alarm codes 5 through 8 are
selectable when the apparatus has the optional function
of heater break alarm.
• Pressing the
key on the function selecting screen calls
the input scaling screen onto the display. The decimal
point in the rightmost position on the top row flashes.
4-3. Screen change
Press the
and press the
or
ENT
key to change the lower limit value
key to register the data.
(1) Screen change from mode 0 group to mode 1 group
• Upon registering the lower limit value data, the decimal
point in the rightmost digit in the bottom row begins to
flash. Change the higher limit value by pressing the
ENT
• Pressing the
of the mode 0 screen group changes it to the direct call
screen of the mode 1 screen group and vice versa.
key for three seconds on the basic screen
or
key and register it by means of the
key.
0-0 Basic Screen
1-0 direct call screen
• Upon registering the higher limit value data, the decimal
points in the rightmost digits of the bottom and top rows
flash. Change the positions of the decimal points by
key
3 seconds
pressing the
or
key and register it by means of the
ENT
key.
(2) Screen change from mode 0 group to mode 2 screen group
• Pressing the key for five seconds on the basic screen
ENT
• Each time the
key is pressed, the flashing decimal
ENT
point in the rightmost digit moves from the top row→
bottom row→top and bottom rows→top row→.
of the mode 0 screen group changes it to the function
selecting screen of the mode 2 screen group and vice versa.
• In case the lower limit value and the higher limit value are
set to produce a difference which is less than 100 counts or
more than 5000 counts, the higher limit value is forced to
change to +100 or +5000 counts. The higher limit cannot
be set to be less than a lower limit value +100 counts or
more than a lower limit value +5000 counts.
0-0 Basic Screen
2-0 Function selecting screen
ENT
key
5 seconds
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4-4. Instruction for screen change and each screen
ENT
Note: In the following, the
indicates that the key above
the mark should be pressed.
mark
key
5 seconds
MODE 1 Screen Group
1-0
Mode 0 Screen Group
0-0
key
3 seconds
Direct call screen (screen No.0)
Initial value: 0
Setting range: 0~19
Set the screen No. to move the screen of the mode 1 screen group.
Refer to Item 4-3 (4) for detail.
The screen with no display condition is skipped.
Basic screen
SV initial value: lower limit of measuring range
Setting range: within measuring range
1-1
1-2
Upper row displays measured value (PV) and lower row displays and
changes the set value (SV). Refer to Item 5-1 for detail.
Set value bias set screen (screen No.1)
Initial value: 0
Setting range: -1999~2000 unit
Displays in the case with set value bias option. The set value is effective
during shorted SB terminal, and is added to the set value. While it is
valid, the leftmost point on the bottom row stays lit on each displayed
screen, excluding the input scaling setting screen.
0-1
0-2
Control output screen
Initial value for manual operation:
The value immediately before switched to manual
Setting range for manual operation: 0~100%
The measured value (PV) is displayed on the top and the control output
value on the bottom. Pressing the MAN key on this screen switches
auto to manual and vice versa. Refer to Item 4-6 (1) for detail.
Proportional band set screen (screen No.2)
Initial value: 3.0%
Setting range: OFF, 0.1~999.9%
Refer to Item 6-2 (1) for proportional band.
Select “OFF” to perform ON/OFF action.
P ≠ OFF
Control execution/stop selecting screen
Initial value: EXEC
Setting range: EXEC, STBY
STBY, MAN,
For ON/OFF
P=OFF
Execution (
) or stop (
) of control is selected.
1-3
Refer to Item 4-6 (2) for detail.
Action hysteresis set screen (screen No.3)
Initial value: 3 or 0.3
Setting range: 1~999 unit
Set ON/OFF hysteresis on ON/OFF action.
This screen appears only when P=OFF.
0-3
AT (auto tuning) action control screen
Initial value: OFF
Setting range: OFF, ON
For “ON” selection, AT is executed and for “OFF” selection, AT is
cancelled.
Refer to Item 5-2 for detail. This screen appears only during ON/OFF
operation; it does not appear when control is suspended or during
manual output.
1-4
1-5
Integral time set screen (screen No.4)
Initial value: 120 seconds
Setting range: OFF, 1~6000 seconds
Refer to Item 6-2 (2) for integral time.
Not shown on ON/OFF action. Selection of OFF starts P or PD action.
No option
0-4
Higher limit alarm set screen
Initial value: Absolute value alarm:
Derivative time set screen (screen No.5)
Initial value: 30 seconds
Setting range: OFF, 1~3600 seconds
Refer to Item 6-2 (3) for derivative time.
Not shown on ON/OFF action.
higher limit for the measuring range
Deviation alarm: 2000 unit
Setting range: Absolute value alarm: within measuring range
Deviation alarm: 0~2000 unit
Displays except the case with alarm option and the alarm type of the
function selecting screen of mode 2 screen group is not specified.
Refer to Item 5-3 (1) for detail.
I ≠ OFF
Selection of OFF starts P or PI action.
I=OFF
1-6
Manual reset value setting screen (screen No.6)
No.6 Initial value: 0.0%
Setting range: -50.0~-50.0%
0-5
Lower limit alarm set screen
Offset is adjusted when I=OFF (P or PD action) is selected.
For details of manual resetting, refer to Item 4-6 (3).
This screen appears only when 1=OFF has been selected.
Initial value: Absolute value alarm:
lower limit for the measuring range
Deviation alarm: -1999 unit
Setting range: Absolute value alarm: within measuring range
Deviation alarm: -1999~0 unit
Displays in case with alarm option and the alarm type of the function
selecting screen of mode 2 screen group is higher limit and lower limit.
Refer to Item 5-3 (2) for detail.
1-7
1-8
Set value function set screen (screen No.7)
Initial value: 0.40
Setting range: OFF, 0.01~1.00
Used for suppressing overshooting and undershooting in expert PID.
For SF=1.00, minimize overshooting, for SF=OFF, expert PID is unable
to be normal PID action. This screen does not appear when P=OFF or
I=OFF.
0-6
Heater break alarm value set screen
Initial value: OFF
Setting range: OFF, 0, 1~50.0A or OFF, 1~500A
Displays in the case with heater break alarm option and alarm type of the
mode 2 screen is higher limit+heater break.
Refer to Item 5-3 (3) for detail.
PV bias value set screen (screen No.8)
Initial value: 0 or 0.0
Setting range: -200~200 unit
Used for sensor input error compensation.
Controlling is performed with corrected value for bias setting.
Upper row displays load current detected by CT.
(If the output is OFF, it shows
)
1-9
PV filter time set screen (screen No.9)
Initial value: 0 second
Setting range: 0~100 seconds
Used for the case of large input change and noise overlapping to reduce
the effect.
NOTE: The heater break alarm can be added if the instrument has alarm option and the
control output is the contact type or the SSR drive voltage type.
Heater break alarm
• Set the alarm level at approx. 85% of the normal load current. In case of large current
variation, set larger value.
If multiple heaters are connected in parallel, set a larger value to output alarm for single heater
break.
1-10
Key lock mode set screen (screen No.10)
Initial value: OFF
Setting range: OFF, 1, 2, 3
No data change is effective on the display screen locked.
Nevertheless, the direct call screen and the keylock mode setting screen
are not locked by setting any lock No.
• If “
” is selected, no alarm output is obtained. Selecting “
” during alarm output,
the alarm output is canceled.
• For case when heater break function is not applicable to direct current load, phase controlling
current and three phase heater.
• Connecting current transformer (CT)
One of the load line wires passes through the hole of the custom CT.
Wire from the secondary side terminal of CT to the CT input terminal of the instrument.
Lock Nos. and Ranges to be locked are as follows:
Lock No.
OFF
1
Range of Screens to Be Locked
Release of lock
To CT input terminal of
controller (no polarity)
NOTE: Two types of the heater break
CT of 30A and 50A are available, the
type selected upon ordering is shipped
with the product as an accessory. Note
the maximum current to be set is 50.0A
Other screens than basic, control output,
AT action control and communication mode screens
for both types. CT is not provided when
0~500A is designated.
Heater (load) wire
All except basic screen
All screens
2
3
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Mode 2 Screen Group (Function selecting screen)
2-0
2
3
4
1
=
=
6
8
5
7
1-11
Proportional cycle setting screen (screen No.11)
Initial value: Contact output 30 seconds
SSR drive voltage 3 seconds
ENT
Use
key to move select digit and data
registration, the selectable digit is indicated by
flashing point.
V and I
output
Setting range: 1~120 seconds
Time of proportional setting cycle is set.
The screen does not display voltage or current output.
Refer to Item 4-6 (4).
NOTE: If it is on auto tuning execution or key lock is set on lock No.1,
2 or 3, no selection can be performed even if the digit point is
flashing.
1-12
Lower limit output limiter setting screen (screen No.12)
Initial value: 0%
Setting range: 0~99%
5
7
6
3
Digits and are not shown in case of no option. Digits of
,
8
and are not displayed.
A lower limit value of control output is set.
Refer to Item 4-6 (5) for output limiter.
2
1
4
•
:
Measuring range code select digit
Initial value: Multi 05, Voltage (V) 81, Current 95 fixed.
Selecting two digits from “4-5. Measuring range code table”.
1-13
Higher limit output limiter setting screen (screen No.13)
Initial value: 100%
Setting range: 1~100%
:
Control output characteristic select digit
Initial value:
: RA (heating characteristics)
: DA (cooling characteristics)
Refer to Item 6-3.
A higher limit value of control output is set.
1-14
5
7
:
:
Alarm type select digit
Initial value:
Select from “4-2. Alarm type code table”.
Soft start time setting screen (screen No.14)
Initial value: OFF
Setting range: OFF, 1~100%
Time for soft start, during which output is changed gradually, is set.
Refer to Item 4-6 (6).
No
communi-
cation
Heater break alarm action mode select digit
Initial value:
Select from
: Lock mode and
Refer to Item 5-3 (3).
1-15
: REAL mode.
Communication mode selecting screen (screen No.15)
Initial value: Locl (local)
Setting range: Locl, Remt
2-1
Communication is allowed in the mode displayed on the bottom.
Input scaling screen
Initial value:
Lower limit value (top row)
1-16
0.0
Communication address setting screen (screen No.16)
Initial value: 0
Setting range: 0~99
Higher limit value (bottom row) 100.0
Position of decimal point
Setting range:
0.0
In case a plurality of apparatus are connected for communication, the
machine No. is set in a range from 0 to 99.
Lower limit value -1999~9899 units
Higher limit value -1899~9999 units
Span = Higher limit value - Lower limit value
= 100~5000 counts
Position of decimal point:
No decimal point, 0.0, 0.00 and 0.000
1-17
1-18
Communication data format selection screen (screen No.17)
Initial: 7b_E
Setting range: 7b_E, 8b_n
Select data format of communication from 7b_E (data bit length : 7bits,
parity: even, stop bit : 1)or 8b_n (data bit length: 8bits, parity: none,
stop bit : 1)
Scaling is done for linear input (mV, V or mA).
The screen is only for monitoring and no setting is possible in the case
of sensor input.
Refer to Item 4-3 (6) for details.
Communication rate selecting screen (screen No.18)
Initial value: 1200 bps
4-5. Measuring range code table
Measuring
Selectable range: 1200, 2400, 4800 and 9600 bps
A rate for data transmission to the host is selected.
Measuring
Range
RS-422A
1-19
Input type
Code
Code
Range
01
02
03
04
05
06
07
08
09
10
11
31
32
33
34
35
36
37
38
71
72
73
81
82
83
~
~
0
0
*1B
1800°C 12
1700°C 13
1700°C 14
400°C
15
1200°C 16
700°C
600°C
200.0°C
1300°C
200.0°C
600°C
600°C 39
100.0°C 40
50.0°C 41
200.0°C 42
600°C 43
3300°F
3100°F
3100°F
750°F
2200°F
1300°F
1100°F
400°F
Delay setting screen Screen No.19
Initial value: 80
Setting range: 0~255
Delay time for starting communication from receiving communication
command is set.
Delay time = 0.1 × set value msec.
The screen is displayed for RS-485.
R
S
K
K
E
J
0 ~
0 ~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
0
-100
0
-150
0
0
0
-300
0
-300
0
0
0
17
18
19
20
21
22
0
-199.9
0
-199.9
0
T
N
U
L
2300°F
400°F
*2
*2
Note: For details of communication, refer to the instructions on
1100°F
-1100°F
200.0°F
120.0°F
400°F
communication in Item 8.
-200 ~
-300 ~
~
~
~
~
~
~
-100.0
-50.0
0.0
-200
-100.0
-50.0
0.0
-150.0
-50.0
0
Pt 100
~
~
~
~
-300
-150.0
-50.0
0
-1100°F
200.0°F
120.0°F
400°F
100.0°C 44
50.0°C 45
200.0°C
JPt 100
~
~
~
~
46
~
~
~
~
~
~
0
10
0
10
50
100
1
Initial value: 0.0~100.0
Conditions of scaling
Scaling setting range:
-1999~9999,
Span: 100~5000 counts
Position of decimal point:
No decimal point, the
first, second and third
decimal places
Thermocouple
B, R, S, K, E, J, T, N: JIS/ANSI/IEC
R. T. D.
Pt100 : Present JIS/IEC
JPt100 : Former JIS
*1 Thermocouple B: Accuracy not
guaranteed for temperatures
below 400 °C (750 °F).
NOTE:
Screen flame on Item 4-4 is as follows:
Screens always shown
during key operation.
0
Voltage
V
0
5
0
10
Screens shown during case with
option or selected option.
Current
mA
~
4
20
95
*2 Thermocouple U, L: DIN43710
In case measuring range is modified, set values, alarm action point and other
related values are all intialized.
NOTE: In case types of Alarms are changed, values are initialized.
Screens shown or skipped depending on the type of
output or the setting status of control action mode.
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4-6. Supplementary explanation of screens
(6) 1-14 Soft Start Time Setting Screen
• Soft start is the function selected to raise control output
gradually in the beginning of control. It is effective in
preventing excessive current from flowing into a heater or
similar apparatus.
(1) 0-1 Control Output Screen
• During manual control an output value is set on this
screen. In automatic control, it is only for monitoring.
• For switching automatic control to manual, press the
key on the control output screen.
• The MAN monitor LED flashes during manual control and
goes out when control is changed to auto.
• This screen is only for monitoring in the stop mode, when
AT is ON, or keylock is set at 2 or 3.
• Manual control output is released if the stop mode is
selected or the type of input or the measuring range is
changed during manual control.
• For changing the manual output value, the
keys are used. It is not necessary to press the
• During manual control, the setting range of control output
is between 0 and 100%. In case an output limiter has been
set, that value serves as the higher/lower limit of the
setting range.
• In ON/OFF action (P=0), manual control output should be
at 0% or 100% (For V and I output, lower limit output
limiter or higher limit output limiter).
MAN
• Soft start functions in the following cases:
ꢀ Upon applying power in the auto mode
ꢁ When control stop (STBY) is changed to control
execution (EXEC)
ꢂ When scale-over is restored to the normal state (in auto
mode)
The above are on condition that soft start time and
proportional band are not set at OFF.
• In the following cases, the soft start function is released.
ꢀ Soft start time has elapsed without problem.
ꢁ Auto is changed to stop or manual mode during the
execution of soft start.
ꢂ Soft start time or proportional band is changed to OFF
during the execution of soft start.
ꢃ The measurement range code is changed during the
execution of soft start.
ꢄ Control output characteristic is changed during the
execution of soft start.
ꢅ Scale-over of a measured value occurs during the
execution of soft start.
and
ENT
key.
• When auto is changed to manual, the action becomes
balanceless and bumpless. If the measured value (PV) is
out of the proportional band, it does not attain balanceless
and bumpless action.
• If power is turned off during manual control output and is
turned on again, the condition is stored in the memory.
ꢆ Control output falls to a level below the output value of
soft start during the execution of soft start.
• Auto tuning is unable to be carried out during the
execution of soft start.
Note: Moving to another screen while maintaining the manual
mode is possible. In this case, it should be noted that
control output is made manually. The apparatus is in the
manual mode when the MAN monitor LED is flashing.
5. Operation
5-1. Setting of set value (SV)
(1) Press the
or
key to set set value. Keep pressing it to
(2) 0-2 Control Execution/Stop Screen
flash the point of the least digit of set value and increase (or
decrease) value.
(2) After confirming the value to coincide the set value, press
• Use the
and
keys to select control execution
(EXEC) or stop (STBY). Then register it by means of the
ENT
key.
to register the data.
ENT
• Upon selecting stop, the STBY monitor LED turns on and
the control output display turns to 0%.
• Upon selecting execution, the mode changes to automatic
control; it is not possible to go directly from the stop to the
manual mode. When control is being executed, the STBY
monitor LED remains unlit.
(3) After registration of the data, the point of the least digit goes
off.
Example: Setting set value to 500 °C.
0-0 basic screen
ENT
key
key
key
• Even at stop, the alarm works.
• When AT is ON or 1, 2 or 3 of keylock has been selected,
no change is allowed.
one by one
continuing
point goes off to
indicate registration
point flashing
point flashing
5-2. AT (Auto tuning)
(3) 1-6 Manual Reset Value Setting Screen
• In the PID operation, an offset is corrected automatically
by I, i.e., integral calculation. When I is set at OFF, this
correction is not made and output is manually increased or
decreased for correction. This is called manual reset (MR).
(4) 1-11 Proportional Cycle Setting Screen
• In the case of contact output or SSR drive voltage output,
time in which output is ON + time in which it is OFF in
the proportional band, that is, proportional cycle time is
set.
(1) Execution of AT action
• By pressing the
or
key on AT action control
and the
screen, display on lower row turns into
point of the least digit starts flashing, then the LED for AT
monitoring turns on to indicate AT standby. Press
key to start AT action with point going off and LED for
AT monitoring flashing.
ENT
• LED for AT
monitoring
turns on
• LED for AT
monitoring starts
0-1
0-0 basic screen
flashing
AT action control screen
AT
ENT
key
key
(5) 1-12, 1-13 Lower Limit and Higher Limit Output Limiters
Setting Screens
key
action
Starting
point goes off to
• The output limiters function effectively to maintain the
lowest temperature, to suppress control overshoot by
limiting control output to minimum and maximum values
set.
• In the output limiters, priority is given to the lower limit
value. Therefore, when the lower limit is set at a value
higher than the higher limit value, the higher limit value is
forced to be the lower limit value + 1%. Therefore, the
higher limit value cannot be set to be less than the lower
limit value + 1%.
point flashing
indicate registration
• When AT is carried out, ON/OFF action of output is
repeated several times, with the set value as the border
line, to make PID values stored in the memory and
terminates. At the same time, control is started by using
stored PID constants.
The AT monitor LED goes out and the display on the AT
action control screen changes to
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(2) Abort of AT
To abort the AT action, by showing the AT action control
Example 2:
In case of setting the alarm action point at 600 °C for higher
limit absolute value alarm.
screen, press the
or
key to select
and press
ENT
key to abort AT and LED for AT monitoring also goes
The set point is action point.
off.
0-2 Higher limit deviation value alarm set screen
ENT
key
key
key
Note: When the AT action is aborted, each value for PID is not
changed.
continuing
one by one
point goes off to
indicate registration
point flashing
point flashing
(3) AT unable for following conditions.
• When the control stop mode is on (The AT screen is not
displayed.)
(2) Lower limit alarm setting
• The lower limit alarm set screen is shown in case where
alarm option is added and the lower limit alarm of the
alarm type select digit on the function selecting screen of
the mode 2 group screen group is selected.
• During manual output control (The AT screen is not
displayed.)
• The proportional band is
setting (ON/OFF action).
(The AT screen is not displayed.)
• Lock No.2 or 3 is selected on the key lock set screen.
• PV (measured) value is over the scale.
• Lower limit deviation value alarm is output for measured
value to be less than set value + (alarm set value).
• For lower limit deviation value alarm, if set value + (alarm
set value) is less than the lower limit of the measuring
range, the action point is lower limit of the measuring
range.
•
During the execution of soft start
(4) AT is automatically canceled in the following condition
during AT execution.
• Duration equal to or longer than 2 hours passed in the
output level of 0% or 100%.
• Lower limit absolute value alarm outputs alarm signal for
the measured value is less than the alarm set value.
• Power shutdown.
• With the
or
key, value at which the alarm signal
ENT
• PV (measured) value is over the scale during AT
execution.
should be output is selected and registered with
(3) Heater break alarm setting
key.
(5) The items enable to be set are as follows:
• Level setting of the higher limit alarm.
• Level setting of the lower limit alarm or heater break
alarm.
• The heater break alarm value setting screen is displayed
when the apparatus is equipped with the optional heater
break alarm function and heater break alarm is selected in
the alarm type selection digit of the function selecting
screen of the mode 2 screen group. The top row shows for
monitoring purposes the value of the presently flowing
current detected by CT and the bottom row shows the set
value of the alarm current.
• When OFF is set as the heater break alarm value, the
heater break alarm does not function.
• By setting OFF during heater break alarm signal output,
heater break alarm output is terminated.
• For set value other than OFF, heater break alarm signal is
output if the current that flows in case where control
output (contact or SSR drive voltage) is ON, is less than
set value.
• If LOCK mode is selected at heater break alarm action
mode select digit on the function selecting screen of the
mode 2 screen group and the break alarm signal is output,
alarm signal is only terminated by changing the break
alarm value into OFF or shutting down power.
If REAL mode is selected and heater current is less than
current value being set, break alarm signal is generated. If
heater current exceeds the current threshold (0.1A), output
of break alarm is terminated.
• Screen number setting and key lock setting on the direct
call screen of mode 1 screen group.
(6) Relationship between AT and set value bias is as follows;
• When SB terminal is shorted before AT execution, AT
executes in the condition with SV+set value bias.
• When SB terminal is opened during AT execution
mentioned in the above, AT executes with SV+set value
bias condition, then controlled with SV condition after
completing AT execution.
• When SB terminal is opened, AT executes with SV
condition.
• When SB terminal is shorted during AT execution
mentioned in the above, AT executes with SV condition,
then controlled with SV+set value bias condition after
completing AT execution.
5-3. Setting of alarm
(1) Higher limit alarm setting
• The higher limit alarm set screen is shown in case where
alarm option is added and the higher limit alarm of the
alarm type select digit on the function selecting screen of
the mode 2 screen group is selected.
• Higher limit deviation value alarm is output for measured
value to be greater than set value + alarm set value.
• For higher limit deviation value alarm, if set value + alarm
set value exceeds the higher limit of the measuring range,
the action point is the higher limit of the measuring range.
• Higher limit absolute value alarm outputs alarm signal for
the measured value exceeds the alarm set value.
• Set the heater break alarm current value by means of the of
ENT
the
or
key and register it by using the
key.
6. Supplement
6-1. Auto return function
In case there is no key operation for three minutes on each of the
screens except the control output screen and the heater break
alarm value setting screen, the basic screen of the mode 0 screen
group is displayed (auto return).
• With the
or
key, value at which the alarm signal
ENT
should be output is selected and registered with
Example 1:
key.
In case of setting the alarm action point at 600 °C for higher
limit deviation value alarm. Set value is 500 °C.
As 500 °C + X °C + = 600 °C, X=600-500 = 100 °C should
be set.
6-2. PID (Screen No.2, 4 and 5 of mode 1 screen group)
PID values are automatically set by performing auto tuning,
modification may be required for object to be controlled.
If auto tuning is not performed, PID value should be set.
0-2 Higher limit deviation value alarm set screen
ENT
key
key
key
continuing
one by one
point goes off to
indicate registration
point flashing
point flashing
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(1) P (proportional action)
7. Instructions on Communication
Control output rate (%) is set for measuring range.
Control output value changes in proportion with measured
value (PV) and set value (SV).
For wide proportional band, change of control output is small
relative to deviation. The narrower the proportional band is,
the larger the output variation is and the more intense
proportional action is. Too narrow proportional band causes
ON-OFF like action with oscillation.
7-1. General
Section 7 deals with communication interface, which is an
optional function, and communication procedure.
For the CN150 series, two types of communication
interface, RS-422A and RS-485 are available. Each enables a
personal computer or the like to set and read various data by the
use of signals which conform with EIA standards.
(2) I (integral time)
A function that compensates the offset created by
proportional action. Effect of compensation is weaker for
longer integral time and is intensified by shortening time.
Too short integral time causes integrating hunting and may
result in wavy operation.
RS-422A and RS-485 are communication standards established
by the Electric Industries Association (EIA), which are meant for
electrical or mechanical matters, the so-called hardware, but not
for the software portion of the data transmission procedure.
Accordingly, communication even with an apparatus having the
same interface cannot be made unconditionally. It requires a
thorough understanding of specifications and procedures.
(3) D (derivative time)
Improves stability of control by reducing overshooting of
integration from expected change of the control output.
Effect of compensation is weaker for shorter derivative time
and is intensified for longer time. Too long derivative time
may result in oscillating operation.
The use of RS-422A or RS-485 allows a plurality of apparatuses
to be connected in a parallel configuration. It is also possible to
use a line converter for conversion of RS-232C to/from RS-422A
and RS-232C to/from RS-485.
6-3. Control output characteristics ( digit of function
ꢃ
selecting screen of mode 2 screen group)
7-2. How to connect CN150 Series with host computer
7-2-1. Control signals
Control output characteristics determines the control output
direction according to the measured value (PV) relative to the set
value (SV).
Since the apparatus is provided with input/output transmitting and
receiving data lines and an earthing line for signals but not with
any other signal line, control signals should be processed by the
host side.
(1)
(RA characteristics)
Control output increases for lower measured value relative to
set value, it is used for heating on temperature control.
The method of processing differs from system to system and
connection details should meet requirements of the host
computer. Examples of connection are shown in the following.
(2)
(DA characteristics)
Control output decreases for lower measured value relative to
set value, it is used for cooling on temperature control.
7-2-2. Connection of RS-422A
6-4. Error message
(1) The logical levels of input and output of this apparatus are
basically as follows:
(1) Defect of measuring input
In case of thermocouple break, R.T.D. A break
and PV being approx. 10% greater than higher
limit of measuring range.
Mark state
**– <**+ (Example: SD- < SD+)
(including the state in which communication is not carried
out)
Space state
**– >**+ (Example: SD- > SD+)
In case of PV being approx. 10% less than the
lower limit of measuring range with inverted
polarity of input wiring.
However, since the impedance of SD+ and SD- of this
apparatus is high until just before transmission, the above
levels are output just before commencing transmission.
(2) Example of Connection of RS-422A
Cold junction (CJ) defect to higher side for
thermocouple input.
Host computer
Cold junction (CJ) defect to lower side for
thermocouple input.
SR73A and 74A Controllers 1
FG (Earthing for protection)
terminal No.
Shielding wire
2
SD+
SD -
RD+
RD -
SG
SD+
SD -
RD+
RD-
SG
Transmitted data
3
4
5
1
Break of B or B and multiple break of A, B, B
upon R.T.D. input
Received data
Earthing for signal
(2) Defect of Heater Break Alarm CT Input
The CT input value exceeds 55A (550A for 0~5V
DC input).
SR73A and 74A Controllers 2
terminal No.
+ 2
SD
SD
RD
RD
SG
The CT input value falls to -5A (-50A for 0~5V
DC input) or lower.
Transmitted data
- 3
+ 4
- 5
1
Received data
Earthing for signal
Terminal resistance (510Ω)
Note: Message of heater break alarm is only displayed on
heater break alarm set screen.
Note: Some line converters between RS-232C and RS-422A
may have the following indication for terminal
(connector) output. If that is the case, logical levels
should be checked before connection.
is shown when output is OFF. It is not
defective.
Note: Contact to us or our representative in case of any defect
regarding this product.
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Example: Mark state
Space state
T × D+ > T × D-
T × D+ < T × D-
7-3-1. Communication mode selecting screen (
(1) Local Mode (
)
)
Line converter
SR73A and 74A Controllers
terminal No.
The COM lamp on the front panel goes out to allow the
setting to be changed by the use of the front keys. In
communication, only the change from local to remote and the
read commands are valid.
FG (Earthing for protection)
Shielding wire
2
3
4
5
1
T x D+
T x D-
R x D+
R x D-
SG
SD+
SD-
RD+
RD-
SG
(2) Remote Mode (
)
The COM lamp on the front panel turns on and the
commands for read and write through communication
become valid.
Front key operation works only to change from remote to
local.
7-2-3. Connection of RS-485
(1) The logical levels of input and output of this apparatus are
basically as follows:
Mark state
-Terminal < +Terminal
(including the state in which communication is not carried
out)
7-3-2. Communication address (
) setting screen
Space state
-Terminal > +Terminal
RS-422A and RS-485 allow connection of a plurality of
apparatuses but in fact, communication is carried out between two
apparatuses. Therefore, the address of each apparatus is
designated by a number between 00 and 99 so as to enable the
designated apparatus to respond.
However, since the impedance of +terminal and -terminal of
this apparatus is high until just before transmission, the above
levels are output just before commencing transmission.
(2) Example of Connection of RS-485
Host computer
FG (Earthing for protection)
CN150 Controllers 1
Shielding wire
7-3-3. Communication data format (
) selecting screen
terminal No.
(+)
(-)
SG
(+)
(-)
SG
2
3
1
Select data format of communication from 7b_E (data bit length
: 7 bits, parity : even, stop bit : 1) or 8b_n (data bit length : 8bits,
parity : none, stop bit : 1)
CN150 Controllers 2
terminal No.
7-3-4. Communication rate (
) selecting screen
2
3
1
(+)
(-)
SG
A rate of transmission from the controller to the host is selected
from among 1200, 2400, 4800 and 9600 bps.
Terminal resistance (510Ω)
7-3-5. Delay (
) setting screen
7-2-4. Terminal resistance
In the case of RS-485, a minimum delay time for transmission
from receiving a communication command is set. Delay time is a
set value (0~255) × 0.1 msec. Nevertheless, actual delay time
includes time for processing the command added to the above
delay time.
As CN150 Series are not provided with terminal resistance,
connect a 510Ω resistance to only the last (the furthest from the
host) station.
Note: If terminal resistance is connected to two or more,
correct action is not guaranteed.
7-4. Communication protocol
7-4-1. Communication procedure
7-2-5. Control of 3-state output
Communication is carried out for each block and the
communication right alternates between the controller and the
host from block to block.
(1) Since RS-422A and RS-485 employ the multi-drop system,
in order to prevent signals from colliding, transmission
output should be controlled to maintain high impedance
while communication is not being made or signals are being
received.
Host computer
Controller (CN150 Series)
Transmission
(Reading)
Transmitting command block
(2) It should be controlled so that high impedance turns to the
normal state of output immediately before starting
transmission and high impedance is restored immediately
when transmission ends. Because 3-state control is delayed
by about 3 msec. maximum from the transmission of the end
bit of the end character, a delay time of about 4 msec. should
be provided in case transmission is started immediately.
Response
Returning response block
(Reading)
Transmission
(Reading)
Transmitting command block
Response
Returning response block
(Reading)
7-4-2. Explanation of block
7-3. Setting of communication parameters
(1) The data format in one block is shown below:
There are four communication-related parameters to be set as
shown below. They are set by means of front keys except for
changing the communication mode from remote to local.
Lower
Lower
position
Higher
position
Higher
position
:
CR
@
Text
position
1
2
3
4
6
[
[
[
[
[
] Communication mode
] Communication address
] Communication data format
] Communication rate
] Delay
5
ꢀ: Start character• • • • • @(40H) Shows the start of a
block.
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(2) Write Data
ꢁ: Address (Machine No.)
• • • • • • • • • • • • • • • • • • • • • • • • • • • • •
Two digits
The text format of write data
contains a command and write data
value.
Command
Write data
Two-digit address data (00~99) set in the controller is
divided to the higher position (tens) and the lower
position (units) and each is shown by an ASCII code.
ꢂ: Text •••••••••••••••••••••••••••••••••••A group of a command and data,
in the format of each command.
Contents of
Write Data
Contents of
Write Data
Command
Command
Attribute
Attribute
PV bias value
E1
SV value
*2 Numerical
value
Numerical
value
F1
Control output value
Stop status
PV filter value
Numerical
value
E2
E3
E4
E5
E6
E7
E8
E9
EA
EB
EC
ED
EE
EF
Numerical
value
F2
F3
F4
F5
F6
F7
ꢃ: End character.• • • • • • • • • (3AH) Shows the end of the
block.
1 byte
1 byte
1 byte
Proportional cycle
time
Numerical
value
ꢄ: BCC check
• • • • • • • • • • • •
BCC check data is shown in two
digits.
Manual status
AT status
Lower limit output
limiter value
Numerical
value
Higher limit output
limiter value
Numerical
value
A value obtained by exclusive OR operation of data
following @(data in the higher position of the address)
through : is converted to two ASCII characters and
shown by two digits in the higher and lower positions.
Higher limit alarm
(AH) value
Numerical
value
Soft start time value
Numerical
value
Lower limit alarm
(AL) value
Numerical
value
Communication
mode
1 byte
Heater break alarm
(HB) value
Numerical
value
(Example) BCC operation of DI read command (Address: 01)
Set value bias (SB)
value
Numerical
value
@
0
1
D
1
:
BCC
CR
Proportional band
(P) value
Numerical
value
(40H)
(30H)
(31H)
(44H)
(31H)
(3AH)
(34H)(45H)
(0DH)
Integral time (I) value
Numerical
value
4
E
Derivative time (D)
value
Numerical
value
•
••BCC=(34H), (45H)
30H + 31H + 44H + 31H + 3AH=4EH
In the above, + =EX-OR (exclusive OR)
Target value function
(SF) value
Numerical
value
Hysteresis (DF) value
Numerical
value
ꢅ: Terminator
• • • • • • • • • • • •
CR(0DH) Shows the termination
of the data of the block.
Manual reset (MR)
value
Numerical
value
(2) In this protocol, address data is inserted in the block in each
transmission or response and so no data link needs to be
established or aborted.
*2 SV value is target set value.
(3) Response Data
(3) The apparatus which has the address matches the one in the
command block, interprets the command, data, etc., and
returns a response block by inserting the same address into it.
Apparatuses which the addresses do not match the one in the
block wait for the next block without activating.
(4) In the case of receiving block data and the terminator CR is
not completed in about 1 second after receiving the start
character, it designates a time-out and automatically waits for
the next command, that is, the start character @ is being
waited for.
Response data has different formats depending on whether
read data has been received or write data has been received.
ꢀ
Response data to read data received
Command
Data 1
,
Data 2
,
,
Data n
Appropriate read data contents of commands shown in
the table of the read data text format are sent back.
Response data to write data received
ꢁ
Command
Write data
The same data as the received write data is sent back.
7-5. Text
7-5-2. Data format
7-5-1. Text format
The data format is divided to 3 categories; numerical data, 1 byte
data and special data.
The text format is classified into read data, write data and
response data.
(1) Numerical Data (-2999~9999)
(1) Read Data
The length of numerical data in the text is fixed to six
characters including a code and a decimal point. A code (+
or -) is attached to the head of the numerical data. In the case
where the numerical value including a code is less than six
characters, 0 is inserted between the code and the figure or
figures to make the value six characters. When a code is
excluded, each of the 5 characters is a figure or a decimal
point.
The text format of read data contains only of a
command of two characters.
Command
Command
D1
Contents of Read Data
PV value, Execution SV value*1, Control output value,
Stop (STBY) status, Manual (MAN) status, AH status,
AL/HB status, AT status, SB status.
Set value of higher limit alarm (AH), Set value of lower
limit alarm (AL).
D2
Load current value, Set value of heater break alarm (HB).
D3
D4
+
Numerical value
-
Set value of set value bias (SB).
Numerical data (30H~39H) or a decimal point (2EH)
Code + (2BH) or – (2DH)
Proportional band (P) value, Integral time (I), Derivative
time (D) value, Set value of target value function (SF).
D5
D6
D7
D8
D9
Set value of hysteresis (DF).
Examples of numerical data
Set value of manual reset (MR).
Set value of PV bias, Set value of PV filter.
Set value of proportional cycle time.
Set value of lower limit output limiter, Set value of
higher limit output limiter.
1
+
2
0
3
0
4
0
5
0
6
1
1
–
2
0
3
0
4
0
5
0
6
1
1
0.01
-1
-0.01
DA
+
+
+
+
–
–
–
–
0
0
1
0
0
1
2
0
.
2
.
0
3
3
0
1
4
4
0
0
1
1
0
0
2
2
.
.
3
.
0
.
1
4
4
1
DB
DC
Set value of soft start time.
Communication mode, Delay time.
1234
12.34
-123.4
-12.34
-0.001
*1
The execution SV value is a total of the SV value and the
value bias.
3
0
0
0
0 or OFF
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(2) One-Byte Data
ꢁ
Error Types
One-byte data in the text has a fixed length of one character
which is either 0 or 1. Seven items are covered, namely, stop
status, manual status, AT status, AH status, AL/HB status
and communication mode.
Description
Error No.
Error Type
BCC error
05
06
08
09
11
12
Arithmetic value is not in accord with BCC.
Command other than prescribed one was received.
Command error
Data format error
Data error
ꢀ
Stop (STBY), Manual (MAN), AT (ON), AH (ON),
AL/HB (ON), SB (ON), Communication (when the
remote mode is on).
The format is different from prescribed one.
Value is out of prescribed data range in the case of
write command.
Write command was received when write command
was invalid.
Write mode error
Option error
1
Command of unequipped option was received.
ꢁ
Execution (EXEC), Auto (AUTO), AT (OFF), AH
(OFF), AL/HB (OFF), SB (OFF), Communication
(when the local mode is on).
7-5-4. Non-response process
0
When an error is found in the block upon receiving data
(3) Special Data
Special data is data sent in response to numerical data which
transmitted from the host, the next correct data block is waited for
without transmission of response data. Therefore, the host has to
retransmit the command block in any of the following cases:
are outside of the ordinary range. Their patterns are shown
in the following.
ꢀ
ꢁ
ꢂ
ꢃ
The start character was not @ (40H).
The communication No. did not match.
The end character was not CR (0DH).
A hardware error such as a framing error, overrun or a
parity error occurred.
ꢀ
ꢁ
ꢂ
Numerical data is +10000~+10999.
0
0
0
0
0
0
0
9
9
9
10000
U
10999
U
Numerical data exceeds the indicated range.
more than
11000
less than
-3000
H
0
0
0
L
0
0
0
0
0
0
D
E
D
E
7-5-5. Restrictions by commands, etc.
Numerical data is over the scale.
(1) Restrictions by Read Command
0
0
0
0
0
The (+) side
H
0
The (-) side
L
0
Upon receiving the D1 read command, the status of
unequipped options (AH, AL/HB, SB) become 0 (30H).
(2) Restrictions by Write Command
ꢃ
CT temperature exceeded the higher limit value or fell
below the lower limit value in the case of thermocouple
input.
ꢀ
ER09
The higher
limit side
The lower
limit side
H
0
0
0
L
0
0
0
C
J
C
J
In the case of P=OFF and Y and P output, write data of
E2 (write command of manual output value) is either of
the following two. Otherwise, ER09 is sent back.
ꢄ
ꢅ
Wire breaking detected in the case of R.T.D. input
0
0
0
0
B
0
+
+
0
0
0
0
0
0
0
1
0
0
0%
100%
CT input value exceeded the higher limit value or fell
below the lower limit value.
In the case of P=OFF and V and I output, a lower limit
output limiter value or a higher limit output limiter
value is to be set.
The higher
limit side
The lower
limit side
H
0
0
0
L
0
0
0
H
B
H
B
ꢁ
ER11
ꢆ
ꢇ
Control output either turned on or turned off while CT
input measurement was ongoing.
If a write command is invalid due to the local mode, a set
value of keylock, AT or some other conditions, and that
command is received, ER11 should be sent back. The
following cases also require ER11 to be sent back.
–
–
–
–
–
–
Data is undeterminable due to a set value of alarm code,
P=OFF, or some other reasons.
• Data in the case where the alarm code is 0 and D2
(AH, AL) or D3 (CT, HB) command has been
received.
Condition
Received Write Command
E2 (Manual control output value)
E4 (Manual status)
Stop mode (STBY)
• Data in the case where the alarm code is 1~4 and D3
(CT, HB) command has been received.
• AL data in the case where the alarm code is 5~8 and
D2 (AH, AL) command has been received.
• I, D, SF or MR data in the case where P=OFF and D5
(P, I, D, SF, MR) command has been received.
E5 (AT status)
Auto mode (AUTO)
Manual mode (MAN)
E2 (Manual control output value)
E5 (AT status)
E6 (Set value of AH)
E7 (Set value of AL)
E8 (Set value of HB)
E8 (Set value of HB)
E7 (Set value of AL)
EE (DF: Hysteresis)
Alarm code = 0
Alarm code = 1~4
Alarm code = 5~8
P=OFF
0
0
0
0
+
0
7-5-3. Communication error
E5 (AT status)
When an error is found in the block after receiving data from the
host, an error message is sent back. The format of error messages
and the types of errors are described in the following.
EB (I: Integral time)
EC (D: Derivative time)
ED (SF: Target value function)
EF (MR: Manual reset)
EF (MR: Manual reset)
ED (SF: Target value function)
P=OFF
ꢀ
Error Message Format
I=OFF
I=OFF
Address No.
Error No.
BCC
:
@
40H
CR
E
45H
R
52H
Space
20H
3AH
Higher Lower
position position
Higher Lower 0DH
position position
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(3) Restrictions by Read/Write Commands Depending on
Equipped Optional Functions
(8) D8
Received
data
D8
D8
ꢀ
ER12
Transmitted
data
PV bias
PV filter
,
When a command which becomes invalid because an
optional function is not equipped, ER12 should be sent
back. (Read commands are included.)
(9) D9
Received
data
D9
D9
Proportional cycle
time
Condition
Received Command
Transmitted
data
D2 (AH/AL) read command
(10) DA
E6 (Set value of AH) write command
E7 (Set value of AL) write command
D3 (CT/HB) read command
Without alarm option
Without HB option
Without SB option
Received
data
DA
DA
Transmitted
data
Lower limit output
limiter value
Higher limit output
limiter value
E8 (Set value of HB) write command
D4 (Set value of SB) read command
E9 (Set value of SB) write command
,
(11) DB
Received
data
DB
DB
(4) Others
Transmitted
data
When P (proportional band)=OFF is prepared to be set, data
is as follows:
Soft start time
(12) DC
+
–
0
0
0
.
0
0
0
0
.
0
OFF
or
Received
data
DC
DC
Transmitted
data
7-6. A list of transmitted/received data
C_MD
Delay time
,
The text portions of data in read commands and write commands
are listed below.
7-6-2. Write command
In write commands, received data and transmitted data are
identical.
Block Data Format
Text Data
Address No.
:
BCC
position position 0DH
@
40H
CR
(1) E1
3AH
Higher Lower
Higher Lower
position position
SV value
E
1
(2) E2
7-6-1. Read command
Control output value (OUT)
STBY : 1 (31H)
E
2
3
(1) D1
(3) E3
Received
D1
data
STBY
E
EXEC : 0 (30H)
Output
value
Transmitted
data
PV
value
SV
value
STBY MAN
AH
AL
AT
SB
D1
,
,
,
,
,
,
,
,
(4) E4
0 (30H) or 1 (31H)
MAN : 1 (31H)
AUTO : 0 (30H)
MAN
AT
E
4
(2) D2
(5) E5
Received
data
D2
D2
AT-ON : 1 (31H)
AT-OFF : 0 (30H)
E
5
6
7
Transmitted
data
Set value of AH
Set value of AL
,
(6) E6
(3) D3
Set value of AH
Set value of AL
E
Received
data
D3
D3
(7) E7
Transmitted
data
CT current value
Set value of HB
,
E
(4) D4
(8) E8
Received
data
D4
D4
Set value of HB
Set value of SB
E
8
9
Transmitted
data
Set value of SB
(9) E9
E
(5) D5
(10) EA
Received
data
D5
D5
P (proportional band) value
I (integral time) value
E
A
B
Transmitted
data
SF value
P value
I value
D value
,
,
,
(11) EB
(6) D6
E
Received
data
D6
D6
(12) EC
Transmitted
data
Hysteresis
D (derivative time) value
E
(13) ED
E
C
D
(7) D7
Received
data
D7
D7
SF (target value function) value
Transmitted
data
Set value of MR
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(14) EE
measuring range in case of T and U
input, though.
JIS Pt100 / JPt100 3-wire type
Approx. 0.25mA
DF (hysteresis) value
E
E
• R.T.D:
Amperage:
Lead wire tolerable
resistance:
(15) EF
MR (manual reset) value
E
F
5Ω max. / wire (The 3 lead wires
should have same resistance.)
0~10, 10~50, 0~100mV DC or 0~1,
1~5, 0~10V DC
500kΩ min.
4~20mA DC
(16) F1
• Voltage :
PV bias value
PV filter value
F
1
2
Input impedance:
• Current:
(17) F2
Receiving impedance: 250Ω
• Input scaling function: Scaling possible for voltage (mV, V)
or current (mA) input.
F
(18) F3
Scaling range:
Span:
Position of decimal
point:
• Sampling cycle:
• PV bias range:
• PV filter:
-1999~9999 counts.
100~5000 counts
Proportional cycle time
Lower limit output limiter value
Higher limit output limiter value
F
3
(19) F4
None, 0.0, 0.00, 0.000
0.5 sec.
± 200 unit
F
4
5
0~100 sec. (0=without filter)
(20) F5
F
Control
(21) F6
• Control mode:
• Proportional band (P): Off, 0.1~999.9% FS (Off setting: On-
Off action)
• Integral time (I):
• Derivative time (D):
• Manual reset (MR):
• Output limiter:
Auto tuning PID/ ON-OFF control
Soft start time
F
6
7
(22) F7
Off, 1~6000 sec. (Off setting: P-PD
action)
Off, 1~3600 sec. (Off setting: P-PI
action)
-50.0~50.0% (Valid when P ≠ OFF
and I=OFF)
Lower limit limiter 0~99%, Higher
limit limiter 1~100% (Priority given to
lower limit limiter)
Off, 1~100 sec.
1~999 units
1~120 sec. (Factory-set value: 30 sec.
for contact output and 3 sec. for SSR
drive voltage output.)
C MD: Communication mode
C_MD
E
Remote: 1 (31H)
Local:
0 (30H)
8. Specifications
Display
• Digital display:
Measured value (PV)/7-segment green
LED 4 digits
Set value (SV) /7-segment orange
LED 4 digits
7-segment LED for PV and SV
Green LEDs for 5 points of output
(OUT), auto tuning (AT), operating
mode (STBY), remote (COM) and
manual output (MAN). Red LEDs for
2 points of alarm (AH, AL/HB).
±(0.3% FS+1 digit) excluding cold
junction temperature compensation
accuracy in the case of the
• Soft start of output:
• ON/OFF hysteresis:
• Proportional cycle:
• Parameter display:
• Action display:
• Control output
characteristics:
RA / DA selectable (set to RA when
shipped)
• Set value function (SF) : Off (Off = 0.00) and 0.01~1.00
• Display accuracy:
Control Output
• Contact output:
• Current output :
240V AC 2.5A / resistive load: 1.5A /
inductive load
4~20mA DC / load resistance: 600Ω
max.
thermocouple input.
±5% FS for temperatures below 400°C
(750 °F) of thermocouple B.
• Display accuracy range: 23±5 °C (18~28 °C)
• Display resolution: Depends on measuring range (0.001,
0.01, 0.1, 1)
• Measured display range: -10~110% (-210~680 °C for -200~
600 °C of R.T.D. input)
•
SSR drive voltage
output :
15±3V DC (with load resistance at
1.5kΩ) /load current: 20mA maximum
0~10V DC /
• Voltage output :
load current: 2mA maximum
Setting
Manual Control
• Setting:
• Setting range:
By 5 front key switches
Same as measuring range.
• Output setting range:
0~100% (setting resolution: 1%) but
within range set by higher/lower
output limiters.
Input
• Auto/manual switching: Balanceless bumpless. Within
proportional band range.
• Type of input :
Multiple input of Thermocouple,
R.T.D., Voltage (mV), or Voltage (V),
or Current 4~20mA DC by code
selection
B, R, S, K, E, J, T, N, {U, L (DIN
43710)} Refer to Measuring range
code table.
100Ω max.
500kΩ min.
Standard feature (up scale)
Communication (Optional)
• Signal level:
EIA standards, conforming with RS-
422A and RS-485.
• Thermocouple:
• Communication system: RS-422A 4-wire half duplex multi-
drop system. RS-485 2-wire half
External resistance:
Input impedance:
Burnout:
Cold junction
temperature
duplex multi-drop (bus) system.
• Synchronous system:
• Data format:
Start-stop synchronous system.
Select data format of communication
from 7b_E (data bit length: 7bits,
parity: even, stop bit: 1) or 8b_n
(data bit length: 8bits, parity: none,
stop bit: 1)
compensation accuracy: ±2°C (°F) (5~45 °C)
±5 °C to the negative side of
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• Communication address:Machine numbers are set in a range
from 0 to 99.
• Current setting range: Off, 0.1~50.0A (Alarm action stops
when Off is set.) or, Off, 1~500A
(when 0~5 V DC for CT input is
selected)
• Communication rate:
1200, 2400, 4800 and 9600 bps.
• Communication delay: To be set in a range from 0 to 255
(Setting possible only in the case of
RS-485.)
• Setting resolution:
• Amperage display:
• Display accuracy:
0.1A or 1A
0.0~55.0A or 0~550A
5% FS (when sine wave is 50 Hz) or
1% FS (in case of 0~5 V DC input)
• Communication
distance:
RS-422A maximum 1200m
(depending on conditions)
RS-485 maximum 500m
(depending on conditions)
• Minimum time for
action confirmation:
• Alarm holding:
On time: 500 msec.
Selectable between Lock (holding)
and Real (no holding)
2 sec.
• Transmission procedure: No procedure.
• Communication code: Conforming with ASCII codes.
• Sampling cycle:
• Control signal:
• Error detection:
Not used.
Vertical parity (even parity) checking.
BCC (block check character)
checking.
Set value Bias (option)
• Setting range:
• Setting resolution:
• Action input:
-1999~2000 unit
Same as display resolution
Non-voltage contact (bias in action
when SB terminal is closed)
• Connectable number
of apparatuses:
Possible to connect 100 units
maximum (including the host,
depending on conditions)
Others
Alarm Output (Optimal)
• Data storage:
• Isolation:
By non-volatile memory (EEPROM)
Input, control output, communication
and alarm output circuits are isolated
from each other.
Input, set value bias and CT input
circuits are not isolated from each
other.
• Number of alarm points: 2 (AH and AL/HB, both for normal
open and common)
• Alarm Type:
Selectable from the following 9
combinations.
(5 through 8 are selectable only when
apparatus has heater break alarm
function.)
• Ambient conditions for use
Temperature/humidity
ranges:
0. Not assigned
1. Higher limit deviation value + lower limit deviation value
without inhibit action
2. Higher limit absolute value + lower limit absolute value
without inhibit action
3. Higher limit deviation value + lower limit deviation value
with inhibit action
4. Higher limit absolute value + lower limit absolute value with
inhibit action
5. Higher limit deviation value without inhibit action + heater
break
6. Higher limit absolute value without inhibit action + heater
break
7. Higher limit deviation value with inhibit action + heater
break
-10~50 °C and below 90%RH (on the
condition that there is no dew
condensation)
2000 m above sea level or lower
II
2
Height:
Installation category:
Degree of pollution:
• Supply voltage/
frequency:
• Power consumption:
• Insulation resistance:
100-260V AC±10% (50 / 60 Hz)
12 VA max.
Between input / output terminal and
power supply terminal:
500V DC 20 MΩ minimum
Between input / output terminal and
protective conductor terminal:
500V DC 20 MΩ minimum
1 min. at 2300V AC between input /
output terminal and power supply
terminal
1 min. at 1500V AC between power
supply terminal and protective
conductor terminal
8. Higher limit absolute value with inhibit action + heater break
• Dielectric strength:
• Alarm setting range:
Higher limit and lower limit absolute
value alarms: Within full scale of
measuring range
Higher limit: 0~2000 unit
Lower limit: -1999~0 unit
On-Off action
Deviation value:
• Alarm action:
• Alarm action hysteresis: Fixed to 0.2% of the measuring range
• Alarm output / rating: Contact 1a (common) / 240V AC 1.5A
(resistive load)
• Protective structure:
• Material :
Only front panel has simple dust-proof
and drip-proof structure
PPO resin molding (equivalent to
UL94V-1)
• External dimensions
CN154, CN155:
H96 × W96 × D110
(panel depth: 100)mm
H96 × W48 × D110
(panel depth: 100)mm
Push-in panel (one-touch mount)
1.0~3.5 mm
Heater Break Alarm (option)
This function can be added if the instrument has an alarm option
and the control output is the contact type or the SSR drive voltage
type.
CN158, CN159:
• Mounting:
• Alarm action:
Heater amperage detected by
externally attached CT. (except 0~5V
DC input)
Alarm output On upon detection of
heater break while control output is
On.
• Panel thickness:
• Panel cutout
CN154, CN155:
CN158, CN159:
• Weight
H92 × W92mm
H92 × W45mm
CN154, CN155:
CN158, CN159:
Approx. 400 g
Approx. 300 g
The contents of this manual are subject to change without notice.
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