Applied Adjustment (Common); Pid Integral / Differential Reset; Pid Control Wait Time; Applied Adjustment (For Speed Pid Control) - Toshiba TOSVERT VF-AS3 Instruction Manual

5. 3

Applied adjustment (Common)

Make the following adjustments for increasing stability if necessary.
5. 3. 1

PID integral / differential reset

You can reset the PID integral value and differential value by input terminal signal.
Input terminal function
Positive Negative
logic logic
52 53
5. 3. 2

PID control wait time

You can set the wait time to prevent PID control from starting before the system becomes stable.
Title
F369
5. 4 Applied adjustment
(for speed PID control)
Adjust the following for stability of speed PID control if necessary.
5. 4. 1

Delay filter

Delay filter set by [F361] moderates radical change in deviation (primary delay control) to stabilize the system.
Processing speed increases with the smaller setting value and decreases with the larger setting value. It is not
necessary to change under normal conditions.
Symbol Title

F361
VF-AS3
Function
PID differential/
integral reset
Parameter name
PID control start wait time
Delay filter Delay filter
t
−
τ
1 − e
Function
PID1 filter
Action (Positive logic)
Reset the PID integral value and differential value.
Description
Inverter operates with frequency set by [FMOd] or [F207]
within [F359] setting time.
After [F359] setting time has elapsed, switch the PID control.
(You can set operation during PID control start wait time by
[A308].)
Setting value
F361=1.0: =1.0 (s)
5-3
E6582112
5. PID control adjustment
3
4
5
9