ABB DCS 400, Manual

Page: 82 / 192

II K 4-58
Overview of Software
ParNo. Parameter name and significance Min Max Default Unit (1) custom.
setting
Grp 5 Speed Controller (continued)
5.22 Alt Speed KP
Proportional gain of the speed controller
(PI controller) for the alternative parameter set.
0.000 19.000 0.200 integer
5.23 Alt Speed TI
Integration time constant of the speed controller
(PI controller) in milliseconds for the alternative
parameter set.
0.0 6553.5 5000.0 ms
5.24 Alt Accel Ramp
Duration of the acceleration ramp in the case of
acceleration from 0 to maximum speed (1.06) in
seconds for the alternative parameter set.
0.0 3000.0 10.0 s x
5.25 Alt Decel Ramp
Duration of the deceleration ramp in the case of
decelerationen from maximum speed (1.06) to 0 in
seconds for the alternative parameter set.
0.0 3000.0 10.0 s x
5.26 Aux Sp Ref Sel
Selection of the desired location for the auxiliary
speed reference value:
0 = Macro depend/ dependent on the selected
macro
1 = AI1 / analog input 1 (X2:1-2)
2 = AI2 / analog input 2 (X2:3-4)
3 = Bus Main Ref / main fieldbus reference value
4 = Bus Aux Ref / auxiliary fieldbus reference value
5 = Fixed Sp1 / fixed speed value 1 (5.13)
6 = Fixed Sp2 / fixed speed value 2 (5.14)
7 = Commis Ref1 / commissioning reference val. 1
8 = Commis Ref2 / commissioning reference val. 2
9 = Squarewave / square-wave generator
10 = Const Zero / constant zero speed
0 10 0 Text x
5.27 Drooping
Desired decrease in speed at nominal torque in %
related to the maximum speed (1.06).
Is usually used in slave drives, which are
temporarily speed-controlled in order to lower the
speed by a specific value in the case of increasing
load. The master is not influenced by the slave
when the slave is switching over to torque control.
This function will also used in drives with a
mechanical coupling which is not suited for torque
control.
0 10 0 %
5.28 Ref Filt Time
Filter time constant for smoothing speed reference
before the speed regulator.
0.00 10.00 0.00 s
5.29 Act Filt 1 Time
Filter time constant 1 for smoothing speed deviation
at the input of the speed regulator.
0.00 10.00 0.00 s
(1) no changes possible if the drive is in ON-status