ABB ACS880 Manual page 14

14 Description of the high-speed option
ACS880
+P967
3
M
ACS880
+P967
3
BLHF
M
ACS880
3
BLHF
M
Inverter modules with +P967, no BLHF filter
NOT ALLOWED. The du/dt of the motor voltage increases potentially enough to
damage the insulation. (Inverter modules with +P967 are not able to sufficiently
limit the du/dt.)
Inverter modules with +P967; BLHF filter when output filter is requested by motor
data sheet
OK for a maximum switching frequency of 13.3 kHz (with 400...500 V units) or
12 kHz (with 690 V units)
In the diagram, "BLHF" denotes either
• ACS880 cabinet-built multidrive option +E230, +E231 or +2E231, or
• BLHF-2x-7 filter module(s) available in the ACS880 multidrive modules product
offering.
Inverter modules without +P967; BLHF filter when output filter is requested by
motor data sheet
OK for a maximum switching frequency of 10.5 kHz (with 400...500 V units) or
7.5 kHz (with 690 V units)
In the diagram, "BLHF" denotes either
• ACS880 cabinet-built multidrive option +E230, +E231 or +2E231, or
• BLHF-2x-7 filter module(s) available in the ACS880 multidrive modules product
offering.