Omron CV500 Installation Manual page 95

Troubleshooting Flowcharts
Power Check Flowchart
POWER indicator not lit
Power supplied?
Voltage in rated
terminals tightened
and lead wires
Replace Power Supply Unit
82
NO
YES
NO
NO
range?
YES
NO
All
NO
intact?
YES
NO
Unit
CV500-PS221
CVM1 PA208 CVM1-PA208
CV500-PS211
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.
Supply power
POWER indica-
tor lit?
Adjust voltage
POWER indica-
tor lit?
Tighten screws or replace
lead wires
POWER indica-
tor lit?
Supply voltage
100 to 120 VAC
200 to 240 VAC
24 VDC
Section 5-2
YES
YES
YES
END
Operating voltage range
85 to 132 VAC
170 to 264 VAC
20.4 to 28.8 VDC