Program features 129
7. Switch on the power to the drive/inverter unit.
8. Enter the number of inverter modules present into parameter 95.13 Reduced run
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 95.13 will
generate a fault.
After all modules have been reinstalled, parameter 95.13 Reduced run mode must be
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 (page 168) and 95.13…95.14 (page 476).
du/dt filter support
With an external du/dt filter connected to the output of the drive, bit 13 of 95.20 HW
options word 1 must be switched on. The setting limits the output switching
frequency, and 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 477).
Sine filter support
The control program has a setting that enables the use of sine filters (available
separately from ABB and others).
With an ABB sine filter connected to the output of the drive, bit 1 of 95.15 Special HW
settings must be switched on. The setting limits the switching and output frequencies
to
• prevent the drive from operating at filter resonance frequencies, and
• protect the filter from overheating.
With a custom sine filter, bit 3 of 95.15 Special HW settings must be switched on.
(The setting does not limit the output frequency.) Additional parameters must be set
according to the properties of the filter as listed below.
Settings
For both ABB and custom filters: Parameter 95.15 Special HW settings (page 476).
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