ABB ACS880 Firmware Manual page 445

No. Name / Range /
Selection
44.13 Brake close delay
0.00 ... 60.00 s
44.14 Brake close level
0.00 ... 1000.00 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
Description
Defines 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
level delay), a close command is given.
Note: Check the compatibility of this setting with
Stop mode (and the applicable deceleration time).
Brake close speed. For scaling, see parameter 46.1.
Defines a brake close level delay. See parameter
Brake close 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 44.7 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.
The drive trips on a 71A2 Mech brake closing failed
71A3 Mech brake opening failed
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).
The drive generates a A7A1 Mechanical brake closing
failed / A7A2 Mechanical brake opening failed
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).
Parameters 445
(44.15 Brake close
21.3
44.14
/
fault if the status of
warning
Def / Type
FbEq 16b / 32b
0.00 s / real32
100 = 1 s / 100 = 1 s
10.00 rpm / real32
- / -
0.00 s / real32
100 = 1 s / 100 = 1 s
0.00 s / real32
100 = 1 s / 100 = 1 s
Fault / uint16
0
1