Speed Pid Control - Toshiba TOSVERT VF-S15 Instruction Manual

2.2. Speed PID control

Speed PID control is selected for speed control of a winder to which fast response is required.
Acceleration/ deceleration time is automatically set to the shortest time. It also responds much faster by
controlling with the increase/ decrease rate which is separated from acceleration/ deceleration time.
Delay filter is set to the feedback value for the stable operation.
[Speed PID control (f360=2)]
[Diagram]
Process upper limit
(f367）
Process value
（f372， f373）
Process lower limit
（f368）
Feedback value
[Parameter setting]
Refer to the chapter 4 and 5 for details of parameter setting.
1) Select the input of process value and feedback value.
It is necessary to convert tension level into frequency for setting.
Item
Process value
Feedback value
a) Frequency free unit conversion function enables to set process value and feedback value easily.
Refer to the chapter 3 for detail.
b) It is possible to add or multiply for process value by override function.
Item
Addition
Multiplication
2) Set the following parameters to suit the motor if necessary.
Title
fh
ul
ll
f270 to f275
f240
f241
Increase/
Decrease
－
PID forward/reverse characteristics selection
Delay filter
（f380）
（f361）
Title
f389 PID control reference signal selection
fpid Process input value of PID control (f389=3)
f369
PID control feedback signal selection
Title
f660 Override addition input selection
f661 Override multiplication input selection
Maximum frequency
Upper limit frequency
Lower limit frequency
Jump frequency 1 to 3
Starting frequency
Operation starting frequency
PID control
Function
Function
Function
5
E6581879
Output frequency
upper limit
（ul）
Jump
frequency
processing
Output frequency
lower limit
（ll）