ABB ACS880 Firmware Manual page 277

No. Name / Range /
Selection
EFB MCW bit 11
Other [bit]
19.12 Ext1 control mode
Zero
Speed
Torque
Minimum
Maximum
Add
Voltage
19.14 Ext2 control mode
19.16 Local control mode
Speed
Torque
Description
Control word bit 11 received through the embedded
fieldbus interface.
See Terms and abbreviations (page
Selects the operating mode for external control location
EXT1.
None.
Speed control. The torque reference used is
reference speed control
chain).
Torque control. The torque reference used is
Torque ref ramp out (output of the torque reference
chain).
Combination of selections
torque selector compares the speed controller output
(25.1 Torque reference speed
reference (26.74 Torque ref ramp
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
torque selector compares the speed controller output
(25.1 Torque reference speed
reference (26.74 Torque ref ramp
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
selector adds the speed reference chain output to the
torque reference chain output.
(Type BCU control units only) DC voltage control. The
torque reference used is 29.1 Torque ref DC voltage
control (output of the DC voltage reference chain).
Selects the operating mode for external control location
EXT2.
For the selections, see parameter
mode.
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
Torque ref ramp out (output of the torque reference
chain).
169).
25.1 Torque
(output of the speed reference
26.74
Speed and Torque: the
control) and the torque
out) and selects the
Speed and Torque: the
control) and the torque
out) and selects the
Speed and Torque: Torque
19.12 Ext1 control
25.1 Torque
(output of the speed reference
26.74
Parameters 277
Def / Type
FbEq 16b / 32b
32
Speed / uint16
1
2
3
4
5
6
7
Speed / uint16
Speed / uint16
0
1