Omron CPM1A Operation Manual page 153

Troubleshooting Flowcharts
Non-fatal Error Check
130
ERR/ALM indicator flashing.
Determine the cause of the error
with a Peripheral Device.
Yes
Is a non-fatal error
indicated?
No
Replace the CPU
Unit.
Section 5-6
Identify the error, eliminate its
cause, and clear the error.
Is the ERR/ALM indi-
cator flashing?
Not lit
End
Flashing