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Preparations
Action
Check the FlexPendant for errors and warnings.
1
Power the controller off. Wait one minute, power the controller on.
2
Wait 30-60 seconds after power-on.
3
Make sure that the control system power is in run-time mode.
Troubleshooting flowchart
Trouble shooting power unit
Turn on power and
wait 1 minute
Check
MODULE STATUS
LED
Not lit
Measure A1.X1
AC input
Normal
Abnormal
Check
AC input
A1.X1
Connection ok
Connection ok
Reconnect
A1.X1
Replace
A1.X1 cable
Connection
not ok
Connection
not ok
Check power source
and incoming mains
Red
steady
Connection ok
Connection ok
Flashing
red
Verify DC_OUT
X4 and X8
Normal
MODULE STATUS Red
Replace power unit
Normal
Abnormal
MODULE STATUS
Green
Troubleshoot drive unit
Read error message
FlexPendant
Disconnect
DC_OUT loads
/test start
Not
resolved
Check
DC_OUT
Not OK
Not OK
OK
Replace
DC_OUT
Check A1.X2
cable
Replace A1.X2
cable
Connection
not ok
Connection
not ok
Steady green
DC-BUS High Voltage LED Not lit
Flashing green
Connection ok
Abnormal
Measure
24V_TRUNK
A1.X6
Replace power unit
Read error message
FlexPendant
Disconnect
24V_TRUNK
and restart
Normal
Measure
24V_TRUNK
Abnormal
Disconnect
loads/test start
Not OK
Check
DC_OUT, AC_OUT,
24V_TRUNK,
24V_BRAKE
OK
Not OK
Replace
DC_OUT, AC_OUT,
24V_TRUNK,
24V_BRAKE
Measure
24V_SYS
Normal
MODULE STATUS
Flashing green
Abnormal
Troubleshoot robot signal
exchange proxy
MODULE
STATUS
Green
Contact your local ABB
Not
resolved
OK
Not OK
Troubleshoot robot signal
exchange proxy
Normal
xx2100001981
Continues on next page
Product manual - OmniCore V250XT
385
3HAC073447-001 Revision: B
© Copyright 2020-2022 ABB. All rights reserved.
7 Troubleshooting
7.3.4 Troubleshooting the power unit
Continued
Содержание OmniCore V250XT
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