ABB ACS580 Firmware Manual page 212

208 Parameters
No. Name/Value
25.06 Acc comp
derivation time
0.00...1000.00 s
25.07 Acc comp filter time
0.0...1000.0 ms
25.15 Proportional gain
em stop
1.00...250.00
Description
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
time.
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:
Acceleration compensation derivation time.
Defines the acceleration (or deceleration) compensation filter
time constant. See parameters
and 25.06 Acc comp derivation time.
Acceleration/deceleration compensation filter time.
Defines the proportional gain for the speed controller when an
emergency stop is active. See parameter
proportional gain.
Proportional gain upon an emergency stop.
25.04 Speed derivation
Speed reference
Actual speed
Time
Speed reference
Actual speed
Time
25.04 Speed derivation time
25.02 Speed
Def/FbEq16
0.00 s
10 = 1 s
8.0 ms
1 = 1 ms
10.00
100 = 1