ABB OmniCore V400XT Product Manual page 391

Troubleshooting flowchart
xx2300001468
Troubleshooting procedure
The troubleshooting table is supposed to be used as a detailed instruction together
with the troubleshooting flowchart.
1
Product manual - OmniCore V400XT
3HAC081697-001 Revision: A
7.3.6 Troubleshooting the HVLP power unit (DSQC3072)
Check all cables
and sockets/pins
OK
Measure
Not OK
24V_TRUNK
OK
Not OK
Measure AC_OK
OK
Not OK Measure
24V_BRAKE_PWR
OK
Not OK
Measure DC BUS
OK
Not OK
Measure AC_OUT
OK
Check bleeder
connection
Not OK
Action
Power on the controller. Check the
MODULE STATUS LED on the
power unit.
© Copyright 2022-2023 ABB. All rights reserved.
Trouble shooting power unit
Turn on power and
wait 1 minute
Check
Green
MODULE STATUS
LED
Not lit
Measure
AC input
OK
OK
Replace power unit
Note
Make sure that the power unit is operational.
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.
7 Troubleshooting
Continued
Red
Not OK
Troubleshoot
other modules
Replace bleeder
Continues on next page
391