ABB OmniCore V400XT Product Manual page 384

7 Troubleshooting
7.3.5 Troubleshooting the power unit
Continued
Preparations
1
2
3
Troubleshooting flowchart
xx2100001981
Continues on next page
384
Action
Check the FlexPendant for errors and warnings.
Power the controller off. Wait one minute, power the controller on.
Wait 30-60 seconds after power-on.
Make sure that the control system power is in run-time mode.
Not lit
Abnormal
Measure A1.X1
AC input
Check power source
Normal
and incoming mains
Connection ok
Check
AC input
A1.X1
Connection
not ok
Connection ok
Reconnect
A1.X1
Connection
not ok
Connection ok
Replace
A1.X1 cable
Measure
24V_TRUNK
Abnormal A1.X6
Normal
Disconnect
24V_TRUNK
and restart
Abnormal
Measure
24V_TRUNK
Normal
Troubleshoot robot signal
Replace power unit
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Trouble shooting power unit
Turn on power and
wait 1 minute
Steady green
Check
DC-BUS High Voltage LED Not lit
MODULE STATUS
LED
Flashing green
Red Flashing
steady
red
Read error message
Read error message
FlexPendant
Not
resolved
MODULE
STATUS
Green
Not OK Disconnect
loads/test start
OK
Measure
24V_SYS
Normal
MODULE STATUS
Flashing green
Abnormal
Not OK
Troubleshoot robot signal
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Product manual - OmniCore V400XT
Normal
MODULE STATUS Red
Normal
Verify DC_OUT
X4 and X8
Abnormal
MODULE STATUS
Green
FlexPendant
Not
resolved
Check A1.X2
cable
Connection ok
Connection
not ok
Disconnect
Connection ok
Replace A1.X2
DC_OUT loads
cable
/test start
Connection
not ok
Check
Not OK
DC_OUT
OK
Not OK
Replace
DC_OUT
Check
DC_OUT, AC_OUT,
24V_TRUNK,
24V_BRAKE
Not OK
Replace
DC_OUT, AC_OUT,
24V_TRUNK,
24V_BRAKE
OK
Troubleshoot drive unit Replace power unit
3HAC081697-001 Revision: A