Memo
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
4
F362
F363
5
F366
<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.
9
<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.
5. [Fundamental operation] How to use parameters
• PID control can be temporarily turned off with an external signal. Assign "36: PID control OFF"
to an input terminal.
• PID control should be OFF when very low speed drive is needed.
• If speed PID is selected, motor is possibly rotating forward and reverse. If you don't want to
rotate reverse, set <F311: Reverse inhibited> or select process PID (<F359>=1, or 11).
Parameter name
PID1 proportional gain
PID1 integral gain
PID1 differential gain
Output frequency
<F362>
Large
Fast response
Adjustment range
0.01 - 100.0
0.01 - 100.0
0.00 - 2.55
<F362>
Small
Slow response
5-56
E6582062
Default
Unit
setting
-
0.30
0.20
-1
s
s
0.00
PID set value
Time