LS Industrial Systems XBC-DR10E - Page 508

Chapter 10 Maintenance
XBC E-Type Main Unit 10-6 Ver. 1
1. Power (PWR) LED Off Troubleshooting Flowchart
Is PWR LED Off?
Incoming voltage at
PLC power Terminals?
Is the incoming voltage
within specified range?
Contact Tech Support for further
assistance.
Supply incoming voltage to
the PLC
Is PWR LED On?
Supply the power
properly.
Is PWR LED On?
1) Eliminate the source of the
excess current
2) Power cycle the incoming power
Is PWR LED On?
No
No
No
Yes
No
No
Yes
Yes
Yes
Complete
Is circuit overcurrent
protection open?
Yes
No
Yes