509
Troubleshooting Flowcharts
Section 8-7
I/O Check
The I/O check flowchart is based on the following ladder diagram section.
10500
00002
(LS1)
00003
(LS2)
SOL1 malfunction.
SOL1
10500
Yes
Monitor the ON/OFF
status of IR 10500
with a Peripheral
Device.
No
Is the IR 10500 out-
put indicator operat-
ing normally?
Check the voltage at the
IR 10500 terminals.
Wire correctly.
Replace terminal
connector.
Operation OK?
Is terminal
block making prop-
er contact?
Disconnect the external wires
and check the conductivity of
each wire.
Operation OK?
Start
Is output wiring
correct?
No
Yes
Check output device
SOL1.
Replace the Output
Unit.
Yes
No
No
Yes
No
No
Yes
Yes
A
To
next
page
(See note)
The error may be due to a blown fuse
or output transistor malfunction.
Operation OK?
