ABB ACS880 Firmware Manual page 244

244 Parameters
No. Name/Value
44.13 Brake close delay
0.00 ... 60.00 s
44.14 Brake close level
0.0 ... 1000.0 rpm
44.15 Brake close level
delay
0.00 ... 10.00 s
44.16 Brake reopen delay
0.00 ... 10.00 s
44.17 Brake fault function
Fault
Warning
Open fault
Description
Specifies a delay between a close command (that is, when
the brake control output is de-energized) and when the drive
stops modulating. This is to keep the motor live and under
control until the brake actually closes.
Set this parameter equal to the value specified by the brake
manufacturer as the mechanical make-up time of the brake.
Brake close delay.
Defines the brake close speed as an absolute value.
After motor speed remains below this level for the duration of
the brake close level delay
close command is given.
Brake close speed.
Brake close level delay. See parameter
level.
Brake close level delay.
Defines a minimum time between brake closure and a
subsequent open command.
Brake reopen delay.
Determines how the drive reacts upon a mechanical brake
control error.
Note: If parameter 44.07 Brake acknowledge selection
to No acknowledge, acknowledgement status supervision is
disabled altogether and will generate no warnings or faults.
However, the brake open conditions are always supervised.
The drive trips on a 71A2 Mechanical brake closing failed
71A3 Mechanical brake opening failed
acknowledgement does not match the status presumed by
the brake control logic.
The drive trips on a 71A5 Mechanical brake opening not
allowed fault if the brake open conditions cannot be fulfilled
(for example, the required motor starting torque is not
achieved).
The drive generates a A7A1 Mechanical brake closing failed
A7A2 Mechanical brake opening failed
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).
Upon closing the brake, the drive generates a
Mechanical brake closing failed
acknowledgement does not match the status presumed by
the brake control logic.
Upon opening the brake, the drive trips on a
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 Mechanical brake opening not
allowed fault if the brake open conditions cannot be fulfilled
(for example, the required motor starting torque is not
achieved).
(44.15 Brake close level
44.14 Brake close
fault if the status of the
warning if the status of
A7A1
warning if the status of the
71A3 Mechanical
Def/FbEq16
0.00 s
100 = 1 s
10.0 rpm
delay), a
See par.
46.01
0.00 s
100 = 1 s
0.00 s
100 = 1 s
Fault
is set
/ 0
/ 1
2