Omron CQM1H - PROGRAM Programming Manual page 531

Troubleshooting Flowcharts
Power Supply Check
506
Power indicator not lit.
Is power being
supplied?
Yes
Is voltage adequate?
(See note.)
Yes
Are there any loose
terminal screws or bro-
ken wires?
No
Replace the Power
Supply Unit.
Note Refer to CQM1H Operation Manual for the allowable voltage ranges for the
CQM1H.
No Connect power
supply.
No
Is Power indicator lit?
No
Set supply voltage with-
in acceptable limits.
No
Is Power indicator lit?
Tighten screws or
Yes
replace wires.
No
Is Power indicator lit?
Section 8-7
Yes
Yes
Yes
End