Pid Control Adjustment; Outline Of Adjustment; Fundamental Adjustment (Common) - Toshiba TOSVERT VF-PS1 Instruction Manual

5. PID control adjustment

5.1. Outline of adjustment

If you have an aim of PID control gain, set each gain and check the working of your system.
Adjust the gain only if necessary.
If you don't have an aim of PID control gain, adjust in order of the following.
1) First, operate in default setting and check the working of your system.
2) Adjust the fundamental adjustment.
a) Adjust the proportional (P) gain first if the response speed delay.
b) Adjust the integral (I) gain if the unstable situation continues.
c) Adjust the differential (D) gain if the unstable situation continues after adjustment of PI gains
or the load fluctuates large continuously.
3) Adjust the applied adjustment for stability if necessary.
*Set the delay filter for stability of the speed PID control.

5.2. Fundamental adjustment (common)

Adjust the PID control fundamental gain.

（Hz）
x
Symbol Title
f362
Kp
f363
Ki
f366
Kd
PID control

    
y Kp x Ki x dt
Function
Proportional (P) gain
Integral(I) gain
Differential (D) gain

d x
（Hz）
y
Kd
dt
PID output frequency
Setting value
f362=1.0: Kp =1.0
f363=1.0: Ki =1.0（1/s）
f366=1.0: Kd =1.0（s）
22
E6581329①