Set To Suit The System; Set If Necessary; Switch Pid Characteristics - Toshiba TOSVERT VF-AS3 Instruction Manual

4. 3

Set to suit the system

4. 3. 1

Set if necessary

Set the following parameters if necessary.
Title
F367
F368
4. 3. 2

Switch PID characteristics

You can set and switch the PID plus / minus characteristics.
It is useful for process type PID control including hot / cool switching of temperature control.
Title
F359
You can switch the characteristics of set value and feedback value by the input signal.
Input terminal function
Positive Negative
logic logic
54 55
VF-AS3
Parameter name
PID1 set value upper-
limit
PID1 set value lower-limit
Parameter name
PID control 1
(with selection of plus/
minus)
Function
PID plus/minus
switching
4-11
Description
• This is upper limit of set value.
• If the set value exceeds the upper limit of feedback value,
the output frequency is fixed. (Refer to 4.2.1 for detail)
Set the upper limit of set value when it is difficult to adjust
by the input level of set value.
This is lower limit of set value.
Description
You can select the process PID plus / minus characteristics.
Action (Positive logic)
Switch the PID plus / minus characteristics of the set value
and the feedback value.
E6582112
4. Setting for PID control
3
4
9