Omron CPM1A User Manual

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3-4-5 Output Wiring
Relay Output Wiring
Wire the outputs to the CPM1A’s CPU Unit and Expansion I/O Unit as shown in
the following diagrams. Use crimp connectors or solid wire (not stranded wire) to
connect to the PC. The power supply output terminals can be used with AC-type
CPU Units.
• Always use solid wire or attach crimp connectors if a stranded wire is used.
• Do not connect loads or apply voltages exceeding the maximum switching ca-
pacity to the output terminals.
• Don’t exceed the output capacity or the maximum common current. Refer to
2-1-3 I/O Specifications for details.
• Each common terminal is separated from one another for each group of output
terminals.
Item Specification
Output capacity 2 A (250 VAC or 24 VDC)
Max. common capacity 4 A/common
WARNING The PC outputs may remain ON or OFF due to deposition or burning of the
output relays or destruction of the output transistors. External safety measures
must be provided to ensure safety in the system. Not providing proper safety
measures may result in serious accidents.
Wiring and Connections
Section 3-4

Omron CPM1A Specifications

General

Model	CPM1A
Type	Compact PLC
Communication Ports	RS-232C (optional)
Instruction Set	Basic and advanced instructions
Operating Temperature	0 to 55°C
Storage Temperature	-20 to 75°C
Humidity	10% to 90% RH (non-condensing)
Power Supply	24 VDC or 100-240 VAC
Expansion	Expansion I/O units available
Timers	128
Counters	256 counters
I/O Points	10, 20, 30, or 40 points (depending on model)