LS Industrial Systems XBC-E Series - Troubleshooting Flowcharts

Chapter 10 Maintenance
XBC E-Type Main Unit 10-5 Ver. 1
10.2.4 Troubleshooting Flowcharts
This section indicates which of the following troubleshooting flowcharts to use for an observed PLC system
condition.
Observed Symptoms
PLC Power (PWR) LED Off
Use Power (PWR) LED Off flowchart on page 10-6
PLC Error (ERR) LED
blinking
Use Error (ERR) LED blinking flowchart on page 10-7
PLC RUN LED Off
Use PLC RUN LED Off flowchart on page 10-8
I/O Module is not functioning
with the field device
Use I/O Module troubleshooting flowchart on page 10-9