Set To Suit The System; Set If Necessary; Switch Pid Characteristic; Agreement Between Process And Feedback Value - Toshiba TOSVERT VF-PS1 Instruction Manual

4.3. Set to suit the system

4.3.1. Set if necessary

Set the following parameters if necessary.
Title Function
f367
Process upper limit
f368
Process lower limit
f370
PID output upper limit
f371
PID output lower limit

4.3.2. Switch PID characteristic

It is used in process PID control mainly.
You can switch the PID forward / reverse characteristic,for example cooler and heater.
[Input terminal function]
Positive Negative
logic logic
PID forward/reverse
54 55
switching

4.3.3. Agreement between process and feedback value

<VF-PS1 only>
Inverter can output agreement signal between the process value and the feedback value.
Select the output terminal function number for each input terminal (RR/S4,VI/II,RX) of feedback value.
Title Function
f374
Frequency command
agreement detection
range
.[Output teiminal function]
Positive Negative
logic logic
Frequency command
144 145 agreement signal
(RR/S4)
Frequency command
146 147 agreement signal
(VI)
Frequency command
148 149 agreement signal
(RX)
1) It is upper limit of process value.
2) It is necessary to input the process value less than
maximum of feedback value.
If the process value is setted maximum of feedvack
value or more, the feedback value reaches maximum
and the deviation becomes zero. The output frequency
is fixed because the feedback value does not become
high level anymore.
Set the upper limit of process value input by this
parameter if necesary.
It is lower limit of process value.
It is upper limit of output frequency by PID control.
It is lower limit of output frequency by PID control.
Function
Switch the PID forward / reverse characteristic of
process value and feedback value.
Set the PID frequency command agreement detection.
range :0.0～fh(Hz).
Function
Frequency command agreement between
fmod (or f207) and RR/S4 input.
Frequency command agreement between
fmod (or f207) and VI input.
Frequency command agreement between
fmod (or f207) and RX input.
20
Discription
Discription (Positiv logic)
Discription
Discription (Positiv logic)
E6581329①