ABB ACS580 - Page 189

Parameters 185
EFB MCW bit 11 Control word bit 11 received through the embedded fieldbus
interface.
32
FBA A connection
loss
Detected communication loss of fieldbus interface A changes
control mode to EXT2.
33
EFB connection
loss
Detected communication loss of embedded fieldbus interface
changes control mode to EXT2.
34
Other [bit] Source selection (see Terms and abbreviations on page 144). -
19.12 Ext1 control mode Selects the operating mode for external control location EXT1
in vector motor control mode.
Speed
Zero None. 1
Speed Speed control. The torque reference used is 25.01 Torque
reference speed control (output of the speed reference
chain).
2
Torque Torque control. The torque reference used is 26.74 Tor qu e re f
ramp out (output of the torque reference chain).
3
Minimum Combination of selections Speed and Torque: the torque
selector compares the speed controller output (25.01 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.
4
Maximum Combination of selections Speed and Torque: the torque
selector compares the speed controller output (25.01 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.
5
19.14 Ext2 control mode Selects the operating mode for external control location EXT2
in vector motor control mode.
For the selections, see parameter 19.12 Ext1 control mode.
Speed
19.16 Local control mode Selects the operating mode for local control in vector motor
control mode.
Speed
Speed Speed control. The torque reference used is 25.01 Torque
reference speed control (output of the speed reference
chain).
0
Torque Torque control. The torque reference used is 26.74
Tor qu e re f
ramp out (output of the torque reference chain).
1
19.17 Local control
disable
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.
No
No Local control enabled. 0
Yes Local control disabled. 1
No. Name/Value Description Def/FbEq16
ACS580 FW.book Page 185 Wednesday, September 21, 2016 9:48 PM