
Parameters 179
Defines the derivation time for acceleration(/deceleration)
compensation. In order to compensate for a high inertia
load during acceleration, a derivative of the reference is
added to the output of the speed controller. The principle
of a derivative action is described under parameter
Note:
As a general rule, set this parameter to the value
between 50 and 100% of the sum of the mechanical time
constants of the motor and the driven machine.
The figure below shows the speed responses when a high
inertia load is accelerated along a ramp.
No acceleration compensation:
Acceleration compensation:
0.00 s
0.00…1000.00 s
Acceleration compensation derivation time.
10 = 1 s
Defines the acceleration (or deceleration) compensation
filter time constant. See parameters
and
8.0 ms
0.0…1000.0 ms
Acceleration/deceleration compensation filter time.
1 = 1 ms
Defines the proportional gain for the speed controller
when an emergency stop is active. See parameter
10.00
1.00…250.00
Proportional gain upon an emergency stop.
100 = 1
Activates the flux adaption enable function.
Off
Disable
Flux adaption disabled.
0
No.
Name/Value
Description
Default
FbEq 16
Time
Speed reference
Actual speed
Time
Speed reference
Actual speed
ACS180 FW.book Page 179 Tuesday, March 9, 2021 2:25 PM