￭ du/dt filter support
With an external du/dt filter connected to the output of the drive, bit 13 of 95.20 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 and diagnostics
Parameter: 95.20 HW options word 1 (page 504).
￭ 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 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 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 and diagnostics
Parameters: 95.15 Special HW settings (page 502), 97.1 Switching frequency
reference (page 519), 97.2 Minimum switching frequency (page 519), 99.18 Sine filter
inductance (page 535) and 99.19 Sine filter capacitance (page 535).
Program features 107
To Next Page
