Du/Dt Filter Support - ABB ACS880-x04 Firmware Manual

94 Program features
1. Disconnect the supply voltage and all auxiliary voltages from the drive/inverter
unit.
2. If the inverter control unit is powered from the faulty module, install an extension
to the wiring and connect it to one of the remaining modules.
3. Remove the module to be serviced from its bay. See the appropriate hardware
manual for instructions.
4. If the Safe torque off (STO) function is in use, install jumpering in the STO wiring
in place of the missing module (unless the module was the last on the chain).
5. Install an air baffle to the top module guide to block the airflow through the empty
module bay.
6. In case the inverter unit has a DC switch with a charging circuit, disable the
appropriate channel on the xSFC-xx charging controller.
7. Switch on the power to the drive/inverter unit.
8. Enter the number of inverter modules present into parameter
mode.
9. Reset all faults and start the drive/inverter unit. The maximum current is now
automatically limited according to the new inverter configuration. A mismatch
between the number of detected modules (95.14) and the value set in
generate a fault.
After all modules have been reinstalled, parameter
reset to 0 to disable the reduced run function. In case the inverter is equipped with a
charging circuit, the charging monitoring must be reactivated for all modules. If the
Safe torque off (STO) function is in use, an acceptance test must be performed (see
the hardware manual of the drive/inverter unit for instructions).
Settings
Parameters 06.17


du/dt filter support

With an external du/dt filter connected to the output of the drive, bit 13 of
options word 1 must be switched on. The setting limits the output switching
frequency. With frame size R5i...R7i inverter modules, the setting also forces the
drive/inverter module fan to full speed. Note that the setting is not to be activated with
inverter modules with internal du/dt filters.
Settings
Parameter 95.20 HW options word 1
(page 133) and 95.13...95.14
95.13 Reduced run mode
(page 413).
(page 416).
95.13 Reduced run
95.13 will
must be
95.20 HW