Omron Sysmac CPM1 Operation Manual page 50

Wiring and Connections
CPM1-10CDR-j CPU Units
CPM1-20CDR-j CPU Units
and CPM1-20EDR
Expansion I/O Unit
CPM1-30CDR-j
CPM1-30CDR-j-V1 CPU
Units
Output Wiring Precautions
An AC-type CPU Unit is shown. DC-type CPU Units don't have power supply
outputs.
This diagram shows the output configuration for CPM1-20CDR-j CPU Units
and CPM1-20EDR Expansion I/O Unit.
This diagram shows the output configuration for CPM1-30CDR-j or
CPM1-30CDR-j-V1 (Available soon) CPU Units.
Observe the following precautions to protect the PC's internal components.
Output Short Protection
The output or internal circuitry might be damaged when the load connected to an
output is short-circuited, so it is recommended to install protective fuses in the
output circuits.
Inductive Loads
When connecting an inductive load to an input, connect a surge protector or
diode in parallel with the load.
The surge protector's components should have the following ratings:
CPM1 relay output
OUT
Surge protector
COM
Section 3-4
39