ABB ACS880-104

360 Parameters
44.12 Brake close request Selects the source of an external brake close request signal.
When on, the signal overrides the internal logic and closes
the brake.
0 = Normal operation/No external close signal connected
1 = Close brake
Notes:
• In an open-loop (encoderless) application, if the brake is
kept closed by a brake close request against a modulating
drive for longer than 5 seconds, the brake is forced to
close and the drive trips on a fault, 71A5 Mechanical brake
opening not allowed.
• This parameter cannot be changed while the drive is
running.
Not selected
Not selected 0. 0
Selected 1. 1
DI1 Digital input DI1 (10.02 DI delayed status, bit 0). 2
DI2 Digital input DI2 (10.02 DI delayed status, bit 1). 3
DI3 Digital input DI3 (10.02 DI delayed status, bit 2). 4
DI4 Digital input DI4 (10.02 DI delayed status, bit 3). 5
DI5 Digital input DI5 (10.02 DI delayed status, bit 4). 6
DI6 Digital input DI6 (10.02 DI delayed status, bit 5). 7
DIO1 Digital input/output DIO1 (11.02 DIO delayed status, bit 0). 10
DIO2 Digital input/output DIO2 (11.02 DIO delayed status, bit 1). 11
Other [bit] Source selection (see Terms and abbreviations on page 148). -
44.13 Brake close delay 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.
0.00 s
0.00 … 60.00 s Brake close delay. 100 = 1 s
44.14 Brake close level 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 (44.15 Brake close level delay), a
close command is given.
Note: Check the compatibility of this setting with 21.03 Stop
mode (and the applicable deceleration time).
10.00 rpm
0.00 … 1000.00
rpm
Brake close speed. See par.
46.01
44.15 Brake close level
delay
Defines a brake close level delay. See parameter 44.14
Brake
close level.
0.00 s
0.00 … 10.00 s Brake close level delay. 100 = 1 s
44.16 Brake reopen delay Defines a minimum time between brake closure and a
subsequent open command.
0.00 s
0.00 … 10.00 s Brake reopen delay. 100 = 1 s
No. Name/Value Description Def/FbEq16