ABB ACS880 Firmware Manual page 288

288 Parameters
No. Name/Value
20.23 Positive speed
enable
20.23 Positive speed enable
20.24 Negative speed
enable
23.01 Speed ref ramp input
01.01 Motor speed used
Not selected
Selected
DI1
DI2
DI3
DI4
DI5
DI6
DIO1
DIO2
Other [bit]
Description
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, 23.01 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 is stopped along the currently active deceleration
ramp. 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.
Example: The motor is rotating in the forward direction.
To stop the motor, the positive speed enable signal is
deactivated by a hardware limit switch (e.g. via digital
input). If the positive speed enable signal remains
deactivated and the negative speed enable signal is
active, only reverse rotation of the motor is allowed.
0.
1.
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
bit 0).
Digital input/output DIO2
bit 1).
Source selection (see Terms and abbreviations
page 187).
is set to
status, bit 0).
status, bit 1).
status, bit 2).
status, bit 3).
status, bit 4).
status, bit 5).
(11.02 DIO delayed status,
(11.02 DIO delayed status,
on
Def/FbEq16
Selected
0
1
2
3
4
5
6
7
10
11
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