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Pid Control - Toshiba Tosvert VF-AS1 Instruction Manual

The new high-performance inverter.
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- Warning -
• When switching to commercial power, make sure that the direction in which the motor rotates when operated
on commercial power agrees with the forward direction when operated via the inverter.
• Do not select any option (=) of  (reverse rotation prohibition selection) that prohibits forward
rotation. Or it becomes impossible to switch to commercial power, because the motor cannot rotate in the
forward direction.
6.20

PID control

  : PID control switching
  : PID control feedback control signal selection
  : Delay filter
  : Proportional (P) gain
  : Integral (I) gain
  : PID deviation upper limit
  : PID deviation lower limit
  : Differential (D) gain
  : Process upper limit
・Function
Using feedback signals (4 to 20mA, 0 to 10V) from a detector, process control can be exercised, for
example, to keep the airflow, amount of flow or pressure constant.
⇒ For details, see instruction Manual(E6581329)specified in Section.
6
[Parameter setting]
Title
















*1: Inverter with a model number ending with -WN1:  -WP1: 
Function
PID control switching
PID control feedback control signal
selection
Delay filter
Proportional (P) gain
Integral (I) gain
PID deviation upper limit
PID deviation lower limit
Differential (D) gain
Process upper limit
Process lower limit
PID control waiting time
PID output upper limit
PID output lower limit
Process increasing rate (speed type
PID control)
Process decreasing rate (speed type
PID control)
PID output dead band
  : Process lower limit
  : PID control waiting time
  : PID output upper limit
  : PID output lower limit
  : Process increasing rate
(speed type PID control)
  : Process decreasing rate
(speed type PID control)
  : PID output dead band
Adjustment range
:No PID control
:Process type PID control
(temp./pressure, etc.) operation
2:Speed type PID control
(potentiometer, etc.) operation
:Deviation input (no feedback
input)
:VI/II (voltage/current input)
:RR/S4 (potentiometer/voltage
input)
:RX (voltage input)
:Optional AI1 (differential current
input)
:Optional AI2 (voltage/current
input)
: PG feedback option
~
1~
~
~ Hz
~ Hz
~
~ Hz
~ Hz
~ sec.
~ Hz
~ Hz
~
~
~
F-34
E6581442
Default setting





*1
*1

*1


*1





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