ABB OmniCore C30 Product Manual page 534

6 Troubleshooting
6.3.4 Troubleshooting the power unit
Continued
Troubleshooting flowchart
xx1800002357
Troubleshooting procedure
The troubleshooting table is supposed to be used as a detailed instruction together
with the troubleshooting flowchart.
1
58 The connectors Q1, Q2 are not available for the DSQC3028 power unit on IRB14050 controller. No need to check the connectors
in IRB14050 controller.
Continues on next page
534
Repair
connection
Not lit or solid red
Measure X5, X9, 24V
DC input voltage
DC < 24V
Check connection to robot
signal exchange proxy
Connection
A1.X9 - K2.X4
not ok
Connection ok
Abnormal
Measure X6, X7,
AC output voltage
Normal
Troubleshoot power
supply
Troubleshoot robot
signal exchange proxy
Action
Check the connections between
58
connectors Q1, Q2
Tip
For more details, see Circuit dia-
gram - OmniCore C30, Circuit dia-
gram - OmniCore C30 for IRB
14050, Circuit diagram - OmniCore
C30 for CRB 15000.
© Copyright 2019-2022 ABB. All rights reserved.
Trouble shooting power unit
Connection
not ok
Check contactors
Q1,Q2 & X2
Ok
Turn on power and
wait 1 minute
Flashing red or flashing red/green
Check LED MS
Green
Repair connection
DC = 24V
Check LEDs of Abnormal
Ethernet ports X3,
X12
Normal
Check connection
of Ethernet cables
24 V
Measure X13,
AC OK signal
0 V
Check elog
DC-link voltage
Warning
Normal
Power unit is ok
Note
Open the top cover of the controller and check
& X2. the connections between connectors Q1, Q2 &
adapter X2.
How to open the controller is described in
Opening the robot controller on page
• If the connection is OK, proceed with
step 2.
• If there is a problem with the connection,
repair the connection and start over.
Repair connection
Replace
power unit
Connection
not ok
Connection ok
Measure X1,
AC input voltage
Normal
Abnormal
Check connection
power inlet to power
Connection
unit
not ok
Connection ok
Troubleshoot no
LEDs are lit
Product manual - OmniCore C30
3HAC060860-001 Revision: P
Repair
connection
222.