ABB ACS880 Firmware Manual page 287

No. Name / Range /
Selection
Other [bit]
20.23 Positive speed
enable
Not selected
Selected
DI1
DI2
DI3
DI4
DI5
DI6
DIO1
DIO2
Other [bit]
20.24 Negative speed
enable
Description
See Terms and abbreviations (page
Selects the source of the positive speed enable
command.
1 = Positive speed enabled.
0 = Positive speed interpreted as zero speed reference.
In the figure below, 23.1 Speed ref ramp input
zero after the positive speed enable signal has cleared.
Actions in different control modes:
Speed control: Speed reference is set to zero and the
motor ramps down along the currently active
deceleration ramp. The drive keeps modulating. The
rush controller prevents additional torque terms from
running the motor in the positive direction.
Torque control: The rush controller monitors the
rotation direction of the motor.
20.23
20.24
23.01
01.01
0
1
Digital input DI1 (10.2 DI delayed
Digital input DI2 (10.2 DI delayed
Digital input DI3 (10.2 DI delayed
Digital input DI4 (10.2 DI delayed
Digital input DI5 (10.2 DI delayed
Digital input DI6 (10.2 DI delayed
Digital input/output DIO1
0).
Digital input/output DIO2
1).
See Terms and abbreviations (page
Selects the source of the negative speed reference
enable command. See parameter
enable.
169).
is set to
status, bit 0).
status, bit 1).
status, bit 2).
status, bit 3).
status, bit 4).
status, bit 5).
(11.2 DIO delayed status, bit
(11.2 DIO delayed status, bit
169).
20.23 Positive speed
Parameters 287
Def / Type
FbEq 16b / 32b
Selected / uint32
0
1
2
3
4
5
6
7
10
11
Selected / uint32