ABB ACS880 - Page 398

Def / Type
FbEq 16b / 32b
DescriptionName / Range /
Selection
No.
Source selection See Terms and abbreviations (page 132).
Other [bit]
Not selected / uint32Selects 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
Note:
• 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
Mech brk opening not allowed.
• This parameter cannot be changed while the drive is
running.
Brake close request44.12
00Not selected
11Selected
2
Digital input DI1 (10.2 DI delayed status, bit 0).
DI1
3
Digital input DI2 (10.2 DI delayed status, bit 1).
DI2
4
Digital input DI3 (10.2 DI delayed status, bit 2).
DI3
5
Digital input DI4 (10.2 DI delayed status, bit 3).
DI4
6
Digital input DI5 (10.2 DI delayed status, bit 4).
DI5
7
Digital input DI6 (10.2 DI delayed status, bit 5).
DI6
10
Digital input/output DIO1 (11.2 DIO delayed status, bit 0).
DIO1
11
Digital input/output DIO2 (11.2 DIO delayed status, bit 1).
DIO2
Source selection See Terms and abbreviations (page 132).
Other [bit]
0.00 s / real32Defines 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 delay44.13
100 = 1 s / 100 = 1 sBrake close delay.0.00 ... 60.00 s
10.00 rpm / real32Defines 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 21.3 Stop
mode (and the applicable deceleration time).
Brake close level44.14
- / -
Brake close speed. For scaling, see parameter 46.1.
0.00 ... 1000.00 rpm
0.00 s / real32
Defines a brake close level delay. See parameter 44.14
Brake close level.
Brake close level
delay
44.15
100 = 1 s / 100 = 1 sBrake close level delay.0.00 ... 10.00 s
398 Parameters