Operation Mode
ASDA-B3
6-22
6
Theoretically, a stepping response can be used to explain proportional gain (KVP), integral gain
(KVI), and feed forward gain (KVF). Here, the time domain is used to illustrate the basic principle.
Time domain
The higher the KVP value, the larger the
bandwidth. The time of the speed increase
will also be shorter. However, if the value is
set too high, the phase margin is too small.
The effect is not as good as KVI for the
steady-state error but is better for the effect
on following error.
The higher the KVI value, the larger the
low-frequency gain. It shortens the time for
the steady-state error to reduce to zero.
However, it does not significantly reduce the
following error.
The closer the KVF value is to 1, the more
complete the forward compensation.
The following error becomes very small.
However, a KVF value that is set too high
also causes vibration.
Содержание ASDA-B3 Series
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