Filter
Top Products
7-4SectionTroubleshooting Flowcharts
123
Yes
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 CPU
Board or Expansion
I/O Board.
Are the terminal
screws loose?
Operation OK?
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?
Operation OK?
Replace the CPU
Board or Expansion
I/O Board.
Operation OK?
Yes
Yes
Yes
Yes
NoNo
No
No
No
No
No
Check the voltage at
the IR 00002 and
IR 00003 terminals.
A
From
previous
page
Yes