Adjusting Feedback Input - Toshiba TOSVERT VF-AS3 Instruction Manual

The integral/derivative amount of PID control can be reset with an external signal. Assign function
number "52: PID differential/integral reset" to an input terminal.
4
<F366: PID1 differential gain>
This parameter adjusts the differential gain level of PID control. This gain increases the speed
of response to a rapid change in deviation (difference between the set value and the feedback
5
value). Note that setting the gain beyond necessity may cause fluctuations in output frequency,
and thus operation to become unstable.
(Previous deviation) - (Current deviation)
9
The integral/derivative amount of PID control can be reset with an external signal. Assign "52:
PID differential/integral reset" to an input terminal.

4) Adjusting feedback input

Make adjustment by converting input level of the feedback value into frequency. Refer to [6. 6.
2].
5. [Fundamental operation] How to use parameters
Output frequency
<F363>
Feedback value
<F363> Small
Residual deviation
Large
Time
5-58
E6582062
PID set value
<F366> Large
<F366> Small
Time