ABB ACS880 Firmware Manual page 142

142 Parameters
No. Name/Value
Speed
Torque
Minimum
Maximum
Add
19.14 Ext2 control mode
19.16 Local control mode
Speed
Torque
19.17 Local control
disable
No
Yes
19.20 Scalar control
reference unit
Hz
Rpm
Description
Speed control. The torque reference used is
reference speed control
chain).
Torque control. The torque reference used is
ramp out (output of the torque reference chain).
Combination of selections
selector compares the speed controller output
reference speed control) and the torque reference
Torque ref ramp out) and selects the smaller of the two.
If speed error becomes negative, the drive follows the speed
controller output until speed error becomes positive again.
This prevents the drive from accelerating uncontrollably if the
load is lost in torque control.
Combination of selections
selector compares the speed controller output
reference speed control) and the torque reference
Torque ref ramp out) and selects the greater of the two.
If speed error becomes positive, the drive follows the speed
controller output until speed error becomes negative again.
This prevents the drive from accelerating uncontrollably if the
load is lost in torque control.
Combination of selections
adds the speed reference chain output to the torque
reference chain output.
Selects the operating mode for external control location
EXT2.
For the selections, see parameter
Selects the operating mode for local control.
Speed control. The torque reference used is
reference speed control
chain).
Torque control. The torque reference used is
ramp out (output of the torque reference chain).
Enables/disables local control (start and stop buttons on the
control panel, and the local controls on the PC tool).
WARNING! Before disabling local control, ensure that
the control panel is not needed for stopping the drive.
Local control enabled.
Local control disabled.
Selects the reference type for scalar motor control mode.
See also section Operating modes of the drive
parameter 99.04 Motor control
Hz. The reference is taken from parameter
ref ramp output (output of the frequency control chain).
Rpm. The reference is taken from parameter
ramp output (speed reference after ramping and shaping).
25.01 Torque
(output of the speed reference
26.74 Torque ref
Speed and Torque: the torque
(25.01 Torque
Speed and Torque: the torque
(25.01 Torque
Speed and Torque: Torque selector
19.12 Ext1 control
25.01 Torque
(output of the speed reference
26.74 Torque ref
(page 22), and
mode.
28.02 Frequency
23.02 Speed ref
Def/FbEq16
2
3
4
(26.74
5
(26.74
6
Speed
mode.
Speed
0
1
No
0
1
Rpm
0
1