Omron CPM1

445
Troubleshooting Flowcharts Section 8-8
Power Supply Check
Note The allowable voltage ranges for the CQM1 are as shown below.
CQM1-PA203/PA206: 85 to 264 VAC
CQM1-PD026: 20 to 28 VDC
Power indicator not lit.
Replace the Power
Supply Unit.
Is power being
supplied?
Is voltage adequate?
(See note.)
Are there any loose
terminal screws or bro-
ken wires?
Connect power
supply.
Is Power indicator lit?
Set supply voltage with-
in acceptable limits.
Is Power indicator lit?
Tighten screws or
replace wires.
End
Ye s
No
Not lit
Lit
Ye s
No
No
Not lit
Is Power indicator lit?
Lit
No
Ye s
Ye s