Omron CQM1 User Manual

276
Wiring Section 3-4
3-4 Wiring
Wiring
Note When using only one control loop, short-circuit the loop 2 input terminals. If
used with the terminals open, “E400” (PV error) will be read into the CPU Unit
for approximately 10 seconds when power is turned ON.
• Do not touch or remove the cold junction compensator. (CQM1-TC001/
TC002)
• Connect to loop 1 terminals and turn ON pin 5 on SW1 when using only
one control loop.
• Use the input sensor set on the function DIP switch.
CQM1-TC001
CQM1-TC002
L
COM
+ DC
+ 24 VDC
LL L
Loop 1
OUT
Loop 2
OUT
Loop 1
TC
Loop 2
TC
–
+
–
+
Cold junction
compensator
Loop 1
TC
Loop 2
TC
–
+
–
+
Cold junction
compensator
Loop 1
OUT
Loop 2
OUT
0 V
COM
+ 24 VDC
CQM1-TC101 CQM1-TC102
B
LLLL
A
COM
+ DC
+ 24 VDC
Loop 1
OUT
Loop 2
OUT
Loop 1
OUT
Loop 2
OUT
0 V
COM
+ 24 VDC
B
B
A
B
Loop 1
Pt
Loop 2
Pt
B
A
B
B
A
B
Loop 1
Pt
Loop 2
Pt

Omron CQM1 Specifications

General

Model	CQM1
I/O Capacity	Up to 256 I/O points
Programming Language	Ladder Logic
Timer/Counter	128 timers/counters
Operating Temperature	0 to 55°C
Humidity	10 to 90% RH (non-condensing)
Power Supply	24 VDC or 100-240 VAC
Communication Ports	RS-232C
Memory Capacity	3.2K words
Instruction Set	Basic and advanced instructions
Memory	RAM (battery-backed)
Program Memory	3.2K words
Storage Temperature	-20 to 75°C