Speed Control - ABB ACS880 Firmware Manual

No. Name/Value
Enable
Other [bit]
24.42 Speed window
control mode
Normal speed
control
P-control
24.43 Speed error window
high
0.00 ... 3000.00
rpm
24.44 Speed error window
low
0.00 ... 3000.00
rpm
24.46 Speed error step
-3000.00 ...
3000.00 rpm
25

25 Speed control

25.01 Torque reference
speed control
-1600.0 ... 1600.0% Limited speed controller output torque.
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Description
1.
Source selection (see Terms and abbreviations
When speed error window control (see parameter
Speed error window control
determines whether the speed controller only observes the
proportional term instead of all three (P, I and D) terms.
All three terms (parameters 25.02,
observed by the speed controller.
Only the proportional term (25.02) is observed by the speed
controller. The integral and derivative terms are internally
forced to zero.
Defines the upper boundary of the speed error window. See
parameter 24.41 Speed error window control
Upper boundary of speed error window.
Defines the lower boundary of the speed error window. See
parameter 24.41 Speed error window control
Lower boundary of speed error window.
Defines an additional speed error step given to the input of the
speed controller (and added to the speed error value). This
can be used in large drive systems for dynamic speed
normalizing.
WARNING! Make sure the error step value is removed
when a stop command is given.
Speed error step.
Speed controller settings.
See the control chain diagrams on pages
Displays the speed controller output that is transferred to the
torque controller. See the control chain diagram on page 580.
This parameter is read-only.
on page 112). -
24.41
enable) is enabled, this parameter
25.03 and 25.04) are
enable.
enable.
579 and 580.
Parameters 229
Def/FbEq16
1
Normal
speed control
0
1
0.00 rpm
See par.
46.01
0.00 rpm
See par.
46.01
0.00 rpm
See par.
46.01
-
See par.
46.03