Fault Codes DTC & Troubleshooting

Table Of Contents
2 TROUBLESHOOTING
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The remote I/O process produces outputs but does not accept inputs.
Check if: What to do
A terminating resistor(s) are installed between
the following terminals for the LPU:
RI/O1 100 Ω : Terminals A6 and A7
150 Ω : Terminals A5 and A7
RI/O2 100 Ω : Terminals B5 and B6
150 Ω : Terminals B4 and B6
If not, install them.
The PCs OK output is OFF.
Check if: What to do
The LADDER switch is set in STOP position. If true, set it in RUN position.
The LPU module’s ERR indicator (LED) is lit. If true, check the error log to see if an
LPU error is recorded. If so,
troubleshoot according to the
instructions given under “4 ERROR
LOG INFORMATION.”
The SIMU indicator (LED) is lit. If true, change the LADDER MODE
to “NORM” in the S10V BASE
SYSTEM.
The power supply module is abnormal. If true, follow the troubleshooting map
for the power supply module in order
to check out the said module.
The wiring or connections are made correctly. If not, correct them.
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