ABB ACS880 - Page 399

Def / Type
FbEq 16b / 32b
DescriptionName / Range /
Selection
No.
0.00 s / real32Defines a minimum time between brake closure and a
subsequent open command.
Brake reopen delay44.16
100 = 1 s / 100 = 1 sBrake reopen delay.0.00 ... 10.00 s
Fault / uint16Determines how the drive reacts upon a mechanical brake
control error.
Note: If parameter 44.7 Brake acknowledge selection is
set to No acknowledge, acknowledgement status
supervision is disabled altogether and will generate no
warnings or faults. However, the brake open conditions
are always supervised.
Brake fault function44.17
0
The drive trips on a 71A2 Mech brake closing failed / 71A3
Mech brake opening failed fault if the status of the
acknowledgement does not match the status presumed
by the brake control logic.
The drive trips on a 71A5 Mech brk opening not allowed
fault if the brake open conditions cannot be fulfilled (for
example, the required motor starting torque is not
achieved).
Fault
1
The drive generates a A7A1 Mechanical brake closing
failed / A7A2 Mechanical brake opening failed warning if
the status of the acknowledgement does not match the
status presumed by the brake control logic.
The drive generates a A7A5 Mechanical brake opening
not allowed warning if the brake open conditions cannot
be fulfilled (for example, the required motor starting torque
is not achieved).
Warning
2
Upon closing the brake, the drive generates a A7A1
Mechanical brake closing failed warning if the status of the
acknowledgement does not match the status presumed
by the brake control logic.
Upon opening the brake, the drive trips on a 71A3 Mech
brake opening failed fault if the status of the
acknowledgement does not match the status presumed
by the brake control logic.
The drive trips on a 71A5 Mech brk opening not allowed
fault if the brake open conditions cannot be fulfilled (for
example, the required motor starting torque is not
achieved).
Open fault
0.00 s / real32Defines a close fault delay, ie. time between brake closure
and brake close fault trip.
Brake fault delay44.18
100 = 1 s / 100 = 1 sBrake close fault delay.0.00 ... 60.00 s
100 ms / real32
Defines a filtering time for parameter 44.2 Brake torque
memory (actual torque value used as open torque
reference).
Filter time brake
torque memory
44.21
100 = 1 ms / 1 = 1 msFiltering time.0...100 ms
Parameters 399