ABB ACS880-01 Series, Firmware Instructions

Page: 282 / 664

282 Parameters
26.18 Torque ramp up
time Defines the torque reference ramp-up time, ie. the time for the
reference to increase from zero to nominal motor torque. 0.000 s
0.000 … 60.000 s Torque reference ramp-up time. 100 = 1 s
26.19 Torque ramp down
time Defines the torque reference ramp-down time, ie. the time for
the reference to decrease from nominal motor torque to zero. 0.000 s
0.000 … 60.000 s Torque reference ramp-down time. 100 = 1 s
26.25 Torque additive 2
source Selects the source of torque reference additive 2.
The value received from the selected source is added to the
torque reference after operating mode selection. Because of
this, the additive can be used in speed and torque modes.
Note: For safety reasons, the additive is not applied when an
emergency stop is active.
WARNING! If the additive exceeds the limits set by
parameters 25.11 Speed control min torque and 25.12
Speed control max torque , a ramp stop may be
impossible. Make sure the additive is reduced or removed
when a ramp stop is required eg. by using parameter
26.26
Force torque ref add 2 zero .
See the control chain diagram on page 653 .
For the selections, see parameter 26.11 Torque ref1 source .
Zero
26.26 Force torque ref
add 2 zero Selects a source that forces torque reference additive 2 (see
parameter
26.25 Torque additive 2 source ) to zero.
0 = Normal operation
1 = Force torque reference additive 2 to zero.
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 ). -
26.41 Torque step When enabled by parameter 26.42 Torque step enable , adds
an additional step to the torque reference.
Note: For safety reasons, the torque step is not applied when
an emergency stop is active.
WARNING! If the torque step exceeds the limits set by
parameters 25.11 Speed control min torque and 25.12
Speed control max torque , a ramp stop may be
impossible. Make sure the torque step is reduced or removed
when a ramp stop is required eg. by using parameter
26.42
Torque step enable .
0.0%
-300.0 … 300.0% Torque step. See par.
46.03
26.42 Torque step enable Enables/disables a torque step (defined by parameter 26.41
Torque step ).
Disable
Disable Torque step disabled. 0
No. Name/Value Description Def / FbEq16