Toshiba TOSVERT VF-AS3 Instruction Manual page 32

Actual output frequency is, regardless of the converted frequency, the output frequency as a result of PID
control.
Impor-
tant
4
9
3) Preset speed
Example of process value setting
Input the set value to terminal [S1] and [S2] by preset speed 1,2 and 3.
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.
1.5 atm
4. Setting for PID control
Input the set value to maximum of the feedback value or less.
If the process value is 2 atm=10V (60Hz), the deviation becomes zero when the feedback value
reaches 2 atm=20mA (60Hz). The output frequency is fixed even though actual output becomes
even higher, because the feedback value will not exceed over 20mA (60Hz).
Title
F107 Terminal RX input voltage select
F210 RX point 1 input value
F211 RX point 1 frequency
F212 RX point 2 input value
F213 RX point 2 frequency
F216 II point 1 input value
F217 II point 1 frequency
F218 II point 2 input value
F219 II point 2 frequency
F360 PID1 feedback input select
F389 PID1 set value select
Feedback value
2 atm 60Hz
1 atm
4mA 20mA
Parameter name
Feedback value
(Converted frequency)
0Hz
4mA 20mA
4-8
E6582112
Example of setting
0: 0 to +10V
0(%)
0(Hz)
100(%)
60(Hz)
20(%)
0(Hz)
100(%)
60(Hz)
3: Terminal II
2: Terminal RX
Process value
(Converted frequency)
Preset speed 3: 45Hz (1.75 atm)
Preset speed 2: 30Hz (1.5 atm)
Preset speed 1: 15Hz (1.25 atm)
VF-AS3