Omron CV500 - Page 103

90
Start
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START
NORMAL
Indicators of
inputs (000002,
000003) normal?
Check terminal
voltage of 000500
with tester
Indicator of
000500 normal?
YES
Correct wiring Replace terminal
block connector
Replace fuse Monitor ON/OFF
status of 000500
with peripheral
device
NO YES YES
Decision
NORMAL
Output
wiring correct?
YES
Faulty
terminal block
connector con -
tact?
Is the
blown fuse indi -
cator lit?
Decision
NORMAL
Check terminal
voltage of 000500
with tester
Decision
Check output de -
vice SOL1
NORMAL ABNORMAL
Replace Output
Unit
Check terminal
voltages of 000002
and 000003 with
tester
Check terminal
voltages of 000002
and 000003 with
tester
Decision
Decision
Input
wiring correct?
NO
Correctly wire
Remove external
wiring and mount
Dummy Input Unit
to check
Decision
Check input de -
vices LS1 and LS2
Terminal
screws loose?
NO
Faulty
terminal block
connector con -
tact?
YES
Replace terminal
block connector
Tighten
Replace Input
Unit
Replace Input
Unit
NO NO ABNORMAL
NO
YES
ABNORMAL
NORMAL
ABNORMAL
ABNORMAL
NORMAL
YES
NO
YES
(Only
unit with
fuse)
(Unit with -
out fuse)
ABNORMAL
NO
Troubleshooting Flowcharts Section 5-2