ABB OmniCore C30 - Page 504

Troubleshooting flowchart
No LEDs are lit
Check switch Q0
Check input power
On
Lit
Switch on Q0
Off
Check LED status
Lit
Not lit
Abnormal
Normal
Troubleshoot
mains
Check Q0 lamp
Not lit
Troubleshoot
the cable
Check connector X0
Repair connection
Connection
not ok
Check AC input cable
Connection ok
Replace cable
Broken cable
Cable ok
No
Ok
Check T2.X1
Abnormal
Replace Q0
Yes
Abnormal
Troubleshoot
power unit
Troubleshoot
power supply
Problem solved
Check Q0 power out
CRB15000 controller
xx1800001827
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504 Product manual - OmniCore C30
3HAC060860-001 Revision: P
© Copyright 2019-2022 ABB. All rights reserved.
6 Troubleshooting
6.2.1 No LEDs are lit on the controller
Continued