ABB OmniCore V250XT Type B - Page 393

Troubleshooting flowchart
Trouble shooting power unit
Turn on power and
wait 1 minute
Check
MODULE STATUS
LED
Not OK
Not OK
Not OK
Not OK
Measure
AC input
Not lit
Not OK
OK
OK
OK
OK
OK
Not OK
OK
Not OK
OK
OK
Green
Red
Measure
24V_TRUNK
Check all cables
and sockets/pins
Replace power unit
Troubleshoot
o
ther modules
Replace bleeder
Measure AC_OK
Measure
24V_BRAKE_PWR
Measure DC BUS
Measure AC_OUT
Check bleeder
connection
xx2300001468
Troubleshooting procedure
The troubleshooting table is supposed to be used as a detailed instruction together
with the troubleshooting flowchart.
NoteAction
Make sure that the power unit is operational.Power on the controller. Check the
MODULE STATUS LED on the
power unit.
1
Wait at least 1 min after power-on.
If the MODULE STATUS LED is:
• If the LED is green, proceed with step 2.
• If the LED is not lit, proceed with step 4.
• If the LED is red, proceed with step 11.
Continues on next page
Product manual - OmniCore V250XT Type B 393
3HAC087112-001 Revision: A
© Copyright 2023-2023 ABB. All rights reserved.
7 Troubleshooting
7.3.6 Troubleshooting the HVLP power unit (DSQC3072)
Continued