ABB ACS880-37 Hardware Manual page 166

166 Maintenance
6. If the control unit (A41 or A51) is powered from the faulty module, connect the power
supply wiring using the extension wire set included to another module.
7. If the Safe torque off (STO) function is in use, install the jumper wire set included in the
STO wiring in place of the missing module. (This is not needed if the module was the
last on the STO wire chain.)
8. Reinstall all shrouding removed earlier. Note: Do not reinstall the DC fuses or busbars
but store them elsewhere until the module can be reinstalled.
9. Switch on the power to the drive.
10. Enter the number of supply/inverter modules present into parameter 195.13/95.13
Reduced run mode.
11. Reset all faults and start the drive.
12. If the module removed was an inverter module and the Safe torque off function is in
use, perform an acceptance test as described under
test (page 243).
The maximum current is now automatically limited according to the new configuration. A
mismatch between the number of detected modules and the value set in 195.13/95.13 will
generate a fault.
5
3
Start-up including acceptance