Start/Stop/Direction - ABB ACS380 Firmware Manual

ACS380 FW.book Page 155 Friday, May 4, 2018 4:18 PM
No. Name/Value
Torque
Minimum
Maximum
19.14 Ext2 control mode
19.16 Local control mode
Speed
Torque
19.17 Local control disable
No
Yes
20

20 Start/stop/direction

20.01 Ext1 commands
Not selected
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Description
Torque control. The torque reference used is
ref ramp out (output of the torque reference chain).
Combination of selections Speed and Torque: the torque
selector compares the speed controller output
Torque reference speed control) and the torque reference
(26.74 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 Speed and Torque: the torque
selector compares the speed controller output
Torque reference speed control) and the torque reference
(26.74 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.
Selects the operating mode for external control location
EXT2 in vector motor control mode.
For the selections, see parameter 19.12 Ext1 control
mode.
Selects the operating mode for local control in vector
motor control mode.
Speed control. The torque reference used is
reference speed control (output of the speed reference
chain).
Torque control. The torque reference used is
ref 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.
Start/stop/direction and run/start/jog enable signal source
selection; positive/negative reference enable signal
source selection.
For information on control locations, see section
and external control locations (page 52).
Selects the source of start, stop and direction commands
for external control location 1 (EXT1).
See also parameters 20.02...20.05. See parameter
for the determination of the actual direction.
No start or stop command sources selected.
Parameters 155
Default
FbEq 16
26.74 Torque 3
4
(25.01
5
(25.01
Speed
Speed
25.01 Torque 0
26.74 Torque 1
No
0
1
Local
In1 Start; In2
Dir
20.21
0