ABB OmniCore V400XT Product Manual page 387

12
13
14
15
16
17
18
Product manual - OmniCore V400XT
3HAC081697-001 Revision: A
Action
Activate safe CTRL signals and
verify DC_OUT.
Check error message on FlexPend-
ant and take appropriate action.
Test starting with DC_OUT loads
disconnected.
Make sure that the cables are con-
nected properly at both ends:
• CTRL/FB (A1.X2)
Replace cables:
• CTRL/FB (A1.X2)
Make sure that the cables are con-
nected properly at both ends:
• DC_OUT (X4 and X8)
Replace cables:
• DC_OUT (X4 and X8)
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7 Troubleshooting
7.3.5 Troubleshooting the power unit
Note
Verify VDC for DC_OUT (X4):
For DSQC3070 (HV 3x380-480V), verify that
DC_OUT (X4) is 650 +/- 3% VDC.
For DSQC3069 (LV 3x380-480V), verify that
DC_OUT (X4) is 370 +/- 3% VDC.
• If the measured voltage is normal, the
unit might be faulty. See
power unit on page
• If the measured voltage is normal and
MODULE STATUS LED is steady red,
read error messages on FlexPendant
and take action. Proceed with step 13.
• If the measured voltage is abnormal and
MODULE STATUS LED is steady green,
proceed with step 15.
• If the error message is insufficient, pro-
ceed with step 14.
• If an error was resolved, restart from step
1.
1 Turn off power for 10 seconds.
2 Disconnect DC_OUT (X4 and X8).
3 Turn on power again.
4 Activate CTRL signals.
5 The DC-BUS High Voltage LED should
turn yellow/orange and DC_OUT should
be charged to nominal voltage.
6 Verify that the disconnected load is
within specification and is not broken.
• If DC_OUT is OK and DC-BUS High
Voltage is on with the loads disconnec-
ted, proceed with step 17.
• If DC_OUT is not OK, the unit may be
faulty, see Replacing the power unit on
page 242.
If the connection and cables seem OK, proceed
with step 11.
If there is a problem with the connection, pro-
ceed with step 16.
If the connection and cables seem OK, restart
from step 1.
If there is a problem with the connection, see
Troubleshooting the drive unit on page
If the connection and cables seem OK, proceed
with step 18.
If DC_OUT is not OK, the unit may be faulty,
see Replacing the power unit on page
If DC_OUT is not OK, the unit may be faulty,
see Replacing the power unit on page
Continued
Replacing the
242.
368.
242.
242.
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