Omron CQM1 User Manual

253
Wiring Section 2-5
2-5 Wiring
Wiring
Units for Thermocouples
• Do not touch or remove the cold junction compensator.
• The sensor must be of the type set on the input type DIP switch.
Units for Platinum
Resistance Thermometers
• The +DC terminals for NPN outputs are internally connected.
• The 0V terminals for NPN outputs are internally connected.
Crimp Terminals Use M3 crimp connectors and tighten terminal screws to a torque of 0.3 to
0.5 N
•m
CQM1-TC201
(4 loops, NPN
outputs)
CQM1-TC202
(4 loops, PNP
outputs)
CQM1-TC203
(2 loops, heater burnout
alarm NPN outputs)
CQM1-TC204
(2 loops, heater burnout
alarm PNP outputs)
Loop 2
Cold junction
compensator
Loop 4
Output 2
Output 4
+24 VDC
(from external
power supply)
Output 1
Output 3
Loop 3
Loop 1
Loop 2
Cold junction
compensator
Loop 4
Output 2
Output 4
+24 VDC
(from external
power supply)
Output 1
Output 3
Loop 3
Loop 1
Loop 2
Cold junction
compensator
Output 2
+24 VDC
(from external
power supply)
Output 1
Loop 1
Loop 2
Output 2
+24 VDC
(from external
power supply)
Output 1
Loop 1
Cold junction
compensator
Loop 2
Loop 4
Output 2
Output 4
+24 VDC
(from external
power supply)
Output 1
Output 3
Loop 3
Loop 1
CQM1-TC301
(4 loops, NPN
outputs)
CQM1-TC302
(4 loops, PNP
outputs)
CQM1-TC303
(2 loops, heater burnout
alarm NPN outputs)
CQM1-TC304
(2 loops, heater burnout
alarm PNP outputs)
Output 2
Output 4
+24 VDC
(from external
power supply)
Output 1
Output 3
Loop 3
Loop 1
Loop 2
Loop 4
Output 2
+24 VDC
(from external
power supply)
Output 1
Loop 1
Loop 2
Output 2
+24 VDC
(from external
power supply)
Output 1
Loop 1
Loop 2
6.2 mm max. 6.2 mm max.

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