Set Value - Toshiba TOSVERT VF-AS3 Instruction Manual

4. 1. 2

Set value

Input the target value in relation to the feedback value as set value.
(1) Select the input of set value
Title
F389
It is possible to add or multiply for process value by override function.
(2) Convert the set value to frequency.
Input the set value to maximum of the feedback value or less.
If the set value is same as maximum of the feedback value, the deviation becomes zero when the
feedback value reaches maximum. The output frequency is fixed even though actual output
Impor-
becomes even higher, because the feedback value will not exceed maximum.
tant
Upper limit of set value can be set by parameter [F367: PID1 set value upper-limit].
1) When setting set value to [FPId]
Example of set value setting
Set [F389]= "12: FPId".
Convert the target of the pressure value to frequency as set value, and then set it to [FPId].
Example: [FPId]= "30(Hz)" when the target is 1.5 atm.
Input the feedback signal of 1 to 2 atm into terminal [II] by 4 to 20mA signal. Convert the input level 4-20mA
by terminal [II] to 0-60Hz.
VF-AS3
Parameter name
PID1 set value select
4-5
Adjustment range (input of set value)
0: selected by FMOd/F207
1: Terminal RR
2: Terminal RX
3: Terminal II
4: Terminal AI4 (option)
5: Terminal AI5 (option)
6 - 11: -
12: FPId
13,14: -
15: Terminal Up/Down frequency
16: Pulse train
17: High resolution pulse train (option)
18,19: -
20: Ethernet
21: RS485 communication (connector 1)
22: RS485 communication (connector 2)
23: Communication option
4. Setting for PID control
E6582112
3
4
9