• Built-in PID control with 2 or 4 control loops or ON/OFF control
• Direct input of 7 types of thermocouple or resistance thermometer
• 500 ms sampling cycle
• RUN/STOP control from CPU Unit
• Unrestricted CPU Unit cycle time
• Heater burnout detection
• Auto-tuning (AT) function
General Specifications
|
Item |
Specification |
|
Unit classification |
CJ-series Special I/O Unit |
|
Compatible Racks |
CJ-series CPU Rack or CJ-series Expansion Rack |
Max. number of
Units |
10 Units/Rack max. (CPU Rack or Expansion Rack) |
CPU Unit data
areas for data
storage/exchange |
Special I/O Unit Area
(960 words)
CIO 2000 to CIO 2959 |
20 words/Unit for
constant data
exchange (6 output
words and 14
input words) |
CPU Unit to
Temperature
Control Unit |
Set point (SP)
Operating commands
RUN/STOP control
Start/Stop AT
Write commands
Heater burnout set value |
Temperature
Control Unit
to CPU Unit |
Process value (PV)
Set point (SP)
Status
Heater current monitor |
DM words allocated to
Special I/O Units
(9,600 words)
D20000 to D29599 |
10 words/Unit
transferred when
power is turned ON or
Unit is restarted |
CPU Unit to
Temperature
Control Unit |
Alarm mode
Alarm hysteresis |
90 words/Unit for regular
data exchange |
Two-way
transfer
between CPU
Unit and
Temperature
Control Unit |
Alarm value
Input compensation value
Control period
Hysteresis
Proportional band
Integral time
Derivative time
Output monitor |
Insulation
resistance |
20 M Ω min. (at 500 VDC) between the following points:
All output and NC terminals and external AC terminals (Power Supply Unit)
All input terminals and external AC terminals (Power Supply Unit)
All input terminals and all output terminals
All external DC terminals (inputs, outputs, and NC) and the FG plate
Between input terminals (sensor and CT inputs)
I/O terminals and NC terminals |
|
Dielectric strength |
2,000 VAC 50/60 Hz for 1 min., detected current: 1 mA
The output terminals/NC terminals and external AC terminals (Power Supply Unit)
1,000 VAC 50/60 Hz for 1 min., detected current: 1 mA
Input terminals and external AC terminals (Power Supply Unit)
Input terminals and output terminals
External DC terminals (inputs, outputs, and NC) and the FG plate
500 VAC 50/60 Hz for 1 min., detected current: 1 mA
Between input terminals (sensor and CT inputs)
I/O terminals and NC terminals |
Internal current
consumption |
250 mA max., 5 VDC |
|
Other |
Other general specifications conform to the CJ-series general specifications. |
|
Dimensions |
31 × 90 × 65 mm (W × H × D) |
|
Weight |
150 g max. |
Characteristics
|
Item |
Specification |
|
Model number |
CJ1W-TC00[] |
CJ1W-TC10[] |
|
Temperature sensor |
Thermocouple: R, S, K, J, T, L, B |
Platinum resistance thermometer: Pt100, JPt100 |
|
Number of loops |
4 loops or 2 loops with heater burnout detection *1 |
Control output
and heater burnout
alarm output |
NPN or PNP outputs, both with short-circuit protection *1
External power supply voltage: 24 VDC +10%, -15%
Max. switching capacity: 100 mA (per output)
Leakage current: 0.3 mA max.
Residual voltage: 3 V max. |
Temperature
control method |
ON/OFF control or PID control with two degrees of freedom (Set with pin 6 on the Unit's DIP switch.) |
|
Control operation |
Forward or reverse operation (Set with pins 4 and 5 on the Unit's DIP switch.) |
|
RUN/STOP control |
Supported (Controlled from the CPU Unit through bits allocated in the Special I/O Unit area.) |
Operation with
CPU Unit in
PROGRAM mode |
The Temperature Control Unit can be set to continue operating or stop operating when the CPU Unit is in PROGRAM mode. (Set with pin 1 on the Unit's DIP switch.) |
Auto/Manual
switch for
operational output |
None |
Autotuning (AT)
of PID constant |
Supported (Controlled from the CPU Unit through bits allocated in the Special I/O Unit area.) |
|
Indication accuracy |
Celsius: ± 0.3% of PV or ± 1 ° C (whichever is larger) ± 1 digit max.
Fahrenheit: ± 0.3% of PV or ± 2 ° F (whichever is larger) ± 1 digit max.
L and - 100 ° C or less for K and T are ± 2 ° C ± 1 digit max.
200 ° C or less for R and S is ± 3 ° C ± 1 digit max.
No accuracy is specified for 400 ° C or less for B *2 |
Celsius: ± 0.3% of PV or ± 0.8 ° C (whichever is larger) ± 1 digit max.
Fahrenheit: ± 0.3% of PV or ± 1.6 ° F (whichever is larger) ± 1 digit max. |
Hysteresis (when
using ON/OFF control) |
0.0 to 999.9 ° C or ° F (0.1 ° C or ° F units) |
|
Proportional band |
0.1 to 999.9 ° C or ° F (0.1 ° C or ° F units) |
|
Integral (reset) time |
0 to 9,999 s (one-second units) |
|
Derivative (rate) time |
0 to 9,999 s (one-second units) |
|
Control period |
1 to 99 s (one-second units) |
|
Sampling period |
500 ms (4 loops) |
|
Output refresh period |
500 ms (4 loops) |
|
Display refresh period |
500 ms (4 loops) |
Input
compensation
value |
- 99.9 to 999.9 ° C or ° F (0.1 ° C or ° F units) |
Alarm output
setting range |
- 999 to 9,999 ° C or ° F (1 ° C or ° F units)
The setting range will be - 99.9 to 999.9 ° C or ° F (0.1 ° C or ° F units) for K or J with decimal point mode, or platinum resistance thermometer.B24 |
External terminal
connections |
Removable terminal block with 18 points (M3 screws) |
Effect on the CPU
Unit's cycle time |
0.4ms |
*1. The last three digits of the model number indicate the Unit's features:
*2. Indication accuracy of thermocouples
• Accuracy ratings are given for the Temperature Control Unit used in a set with a cold-junction compensator (on the
terminal block). Always use the Unit and terminal block in a set. There are labels with serial numbers attached to
the terminal blocks and Units to help keep track of the sets.
• When returning a thermocouple-type Temperature Control Unit for repair, always return the Unit and the terminal
block (with the cold-junction compensator) as a set.
Heater Burnout (HB) Alarm
|
Item |
Specification |
|
Maximum heater current |
Single-phase AC, 50 A |
|
Indication accuracy of input current |
±5% of full scale ± 1 digit max. |
|
Heater burnout alarm setting range |
0.1 to 49.9 A (0.1 A units)
The heater burnout detection function will not operate if the set value is set to 0.0 A or 50.0 A.
(When the SV is 0.0 A, the heather burnout alarm will be OFF. When the SV is 50.0 A, the heater
burnout alarm will be ON.) |
|
Min. detectable ON time * |
200 ms |
* If the control output is ON for less than 200 ms, the heater burnout detection function will not operate and heater
current measurement will not be performed.
Current Transformer (CT) Ratings
|
Item |
E54-CT1 |
E54-CT3 |
|
Max. continuous heater current |
50A |
120 A * |
|
Dielectric strength |
1,000 VAC (1 min.) |
|
Vibration resistance |
50 Hz, 98 m/s2 |
|
Weight |
Approx. 11.5 g |
Approx. 50 g |
|
Accessories |
None |
Contacts (2)
Plugs (2) |
Note: Do not use any Current Transformer (CT) other than the OMRON E54-CT1 or E54-CT3 Current Transformer.
* The maximum continuous heater current that can be detected at a CJ1W-TC[][][] Temperature Control Unit is 50 A.