Omron CQM1H - PROGRAM

510
Troubleshooting Flowcharts Section 8-7
Ye s
No
Check the voltage at
the IR 00002 and IR
00003 terminals.
Check operation by using a
dummy input signal to turn the
input ON and OFF.
No
Replace the Input
Unit.
Are the terminal
screws loose?
Wire correctly.
Is input wiring
correct?
Tighten the terminal
screws
Check input devices
LS1 and LS2.
Return to "start."
Are the IR 00002
and IR 00003 input indi-
cators operating
normally?
Replace the Output
Unit.
Operation OK?
Ye s
Ye s
Ye s
Ye s
NoNo
No
No
No
No
No
Ye s
No
Check the voltage at
the IR 00002 and IR
00003 terminals.
A
From
previous
page
Ye s
Operation OK?
Replace terminal
connector.
Is terminal
block making proper
contact?
Operation OK?