NoteTest
Make sure that the cabling is correctly connec-
ted and not faulty.
• If the cabling is OK, see Troubleshooting
the power unit on page 382. Verify that
the fault has been fixed and restart this
guide if necessary.
• If the cabling is found unconnected or
faulty, connect/replace it. Verify that the
fault has been fixed and restart this
guide if necessary.
Check the cabling.9
See Replacing the power supply on page 247.The power supply may be faulty,
replace it and verify that the fault
has been fixed.
10
Product manual - OmniCore C90XT 405
3HAC073706-001 Revision: D
© Copyright 2020-2021 ABB. All rights reserved.
7 Troubleshooting
7.3.10 Troubleshooting the power supply
Continued
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