Adjusting Pid Control Gain Level - Toshiba TOSVERT VF-AS3 Instruction Manual

Industrial inverter (for 3-phase motors)
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• PID control can be temporarily turned off with an external signal. Assign "36: PID control OFF"
Memo
to an input terminal.

3) Adjusting PID control gain level

Adjust the PID control gain level according to the set values, the feedback signals, and the
object to be controlled.
Title
Parameter name
F362
PID1 proportional gain
F363
PID1 integral gain
F366
PID1 differential gain
<F362: PID1 proportional gain>
This parameter adjusts the proportional gain level of PID control. A correction value proportional
to the particular deviation (the difference between the set value and the feedback value) is
obtained by multiplying this deviation by the parameter setting.
A larger P-gain adjustment value gives faster response. Too large an adjustment value,
however, results in an unstable event such as hunting.
Output frequency
Large
<F362>
Fast response
<F363: PID1 integral gain>
This parameter adjusts the integral gain level of PID control. Any remaining deviations (residual
deviation offset) during proportional action are cleared to zero.
A larger I-gain adjustment value reduces residual deviations. Too large an adjustment value,
however, results in an unstable event such as hunting.
Adjustment range
0.01 - 100.0
0.01 - 100.0
0.00 - 2.55
<F362>
Small
Slow response
5-57
5. [Fundamental operation] How to use parameters
E6582062
Default
Unit
setting
-
0.30
0.20
-1
s
s
0.00
PID set value
Time
3
4
5
9

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