9-5SectionTroubleshooting Flowcharts
140
I/O Check The I/O check flowchart is based on the following ladder diagram section.
00100
00002
(LS1)
00003
(LS2)
SOL1 malfunction.
SOL1
00100
Is the IR 00100 out-
put indicator operat-
ing normally?
Yes
Monitor the ON/OFF
status of IR 00100
with a Peripheral
Device.
No
Check the voltage at the
IR 00100 terminals.
Wire correctly. Replace the connec-
tor.
Operation OK?
Start
Is output wiring
correct?
Is terminal
block making prop-
er contact?
Disconnect external wires and
check conductivity of each
wire of terminal for 00100.
No
Yes
Check output device
SOL1.
Operation OK?
Replace the Customiz-
able Counter Unit.
Yes
No
No
Yes
No
Operation OK?
NoYes
Yes
A
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(See note)
The error may be due to an output
transistor malfunction.
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