Troubleshooting flowchart
No LEDs are lit
Check
mains switch Q0
Check input power
On
Switch on Q0
Off
Check LED status
Lit
Not lit
Abnormal
Normal
Troubleshoot
incoming power
Check
mains connection X0
Repair
connection
Connection
not ok
Check AC input cable
Connection ok
Replace cable
Broken cable
Cable ok
Ok
Ok
Check fuse F1
Check A1.X1
Abnormal
Replace Q0
Abnormal
Replace fuse F1
Abnormal
Troubleshoot
power unit
Ok
Problem solved
Check Q0 power out
Not lit
Troubleshoot
LEDs
xx2100001064
Continues on next page
354
Product manual - OmniCore V250XT
3HAC073447-001 Revision: B
© Copyright 2020-2022 ABB. All rights reserved.
7 Troubleshooting
7.2.1 No LEDs are lit on the controller
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Summary of Contents for OmniCore V250XT
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