ABB ACS880 Firmware Manual page 242

242 Parameters
No. Name/Value
DIO2
Other [bit]
44.07 Brake acknowledge
selection
Off
On
No acknowledge
DI1
DI2
DI3
DI4
DI5
DI6
DIO1
DIO2
Other [bit]
44.08 Brake open delay
0.00 ... 5.00 s
44.09 Brake open torque
source
Zero
AI1 scaled
AI2 scaled
FBA ref1
FBA ref2
Brake torque
memory
Brake open torque
Other
Description
Digital input/output DIO2
Source selection (see Terms and abbreviations
Activates/deactivates (and selects the source for) brake
open/close status (acknowledgement) supervision.
When a brake control error (unexpected state of the
acknowledgement signal) is detected, the drive reacts as
defined by parameter 44.17 Brake fault function.
0 = Brake closed
1 = Brake open
0.
1.
Brake open/closed supervision disabled.
Digital input DI1 (10.02 DI delayed
Digital input DI2 (10.02 DI delayed
Digital input DI3 (10.02 DI delayed
Digital input DI4 (10.02 DI delayed
Digital input DI5 (10.02 DI delayed
Digital input DI6 (10.02 DI delayed
Digital input/output DIO1
Digital input/output DIO2
Source selection (see Terms and abbreviations
Defines the brake open delay, ie. the delay between the
internal open brake command and the release of motor speed
control. The delay timer starts when the drive has magnetized
the motor and increased the motor torque to the level
required for brake release (parameter
torque reference). Simultaneously with the timer start, the
brake control logic energizes the brake control output and the
brake starts to open.
Set this parameter to the value of mechanical opening delay
specified by the brake manufacturer.
Brake open delay.
Defines a source that is used as a brake opening torque
reference if
• its absolute value is greater than the setting of parameter
44.10 Brake open torque, and
• its sign is the same as the setting of
torque.
See parameter 44.10 Brake open
Zero.
12.12 AI1 scaled value
12.22 AI2 scaled value
03.05 FB A reference 1
03.06 FB A reference 2
Parameter 44.02 Brake torque memory.
Parameter 44.10 Brake open
Source selection (see Terms and abbreviations
(11.02 DIO delayed status, bit 1).
status, bit 0).
status, bit 1).
status, bit 2).
status, bit 3).
status, bit 4).
status, bit 5).
(11.02 DIO delayed status, bit 0).
(11.02 DIO delayed status, bit 1).
44.03 Brake open
44.10 Brake open
torque.
(see page 113).
(see page 114).
(see page 92).
(see page 92).
torque.
Def/FbEq16
11
on page 88). -
No
acknowledge
0
1
2
3
4
5
6
7
8
11
12
on page 88). -
0.00 s
100 = 1 s
Brake open
torque
0
1
2
3
4
7
8
on page 88). -