ABB OmniCore V250XT Type B - Page 353

NoteAction
Verify that the input to A1.X6 is
25.2 VDC +/- 5%.
• If the measured voltage is
normal, check and replace
the cable if necessary.
• If the measured voltage is
abnormal, troubleshoot the
power unit. See
Troubleshooting the power
unit on page 383.
Measure the 24VDC_TRUNK at connector A1.X6.4
• LED PC and/or LED HMI are
green, proceed with 6.
• LED PC and/or LED HMI are
not green,, troubleshoot the
main computer. See
Troubleshooting the main
computer on page 416.
Check LEDs PC (Power distribution board,
DSQC1085) and HMI (Safety board, DSQC1087).
5
If the drive unit status LED is not
lit, see Troubleshooting the drive
unit on page 370.
Check the drive unit status LED.6
If the problem remains, contact ABB.7
Tip
For more details, see Circuit diagram - OmniCore V250XT, rev 04 or later.
Product manual - OmniCore V250XT Type B 353
3HAC087112-001 Revision: A
© Copyright 2023-2023 ABB. All rights reserved.
7 Troubleshooting
7.2.2 Start-up failure
Continued