ABB Robotics OmniCore C90XT Product Manual page 365

Troubleshooting flowchart
xx2000000444
Product manual - OmniCore C90XT
3HAC073706-001 Revision: E
No LEDs are lit
Check switch Q0
On
Check input power
Normal
Check connector X0
Connection ok
Check AC input cable
Cable ok
Check Q0 power out
Ok
Check T2.X1
Ok
Troubleshoot power
supply
Ok
Not lit
Check LED status
Lit
Problem solved
© Copyright 2020-2021 ABB. All rights reserved.
7.2.1 No LEDs are lit on the controller
Off
Switch on Q0
Abnormal
Troubleshoot
mains
Connection
not ok
Repair connection
Broken cable
Replace cable
Abnormal
Replace Q0
Abnormal
Troubleshoot
power unit
7 Troubleshooting
Continued
Continues on next page
365