Troubleshooting Flowcharts
Section 5-2
Power Check Flowchart
POWER indicator not lit
NO
NO
NO
Supply power
Power supplied?
YES
NO
NO
NO
YES
YES
YES
POWER indica-
tor lit?
Adjust voltage
V
oltage in rated
range?
YES
POWER indica-
tor lit?
All
terminals tightened
and lead wires
intact?
T
ighten screws or replace
lead wires
YES
POWER indica-
tor lit?
Replace Power Supply Unit
END
Unit
Supply voltage
100 to 120 VAC
200 to 240 VAC
24 VDC
Operating voltage range
85 to 132 VAC
CV500-PS221
CVM1-PA208
170 to 264 VAC
CV500-PS211
20.4 to 28.8 VDC
Note 1. The fuse inside the DC Power Supply Unit will burn out if power is turned on
with the 5-V output terminals shorted.
2. If the POWER indicator does not light when power is properly supplied, re
-
place the Power Supply Unit.
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OMRON [ OMRON ELECTRONICS LLC ]
