Toshiba Tosvert VF-S15 Instruction Manual page 198

5) Adjusting feedback value
Make adjustment by converting input level of the feedback value into frequency. Refer to section 6.10.2 for
details.
Example of 0 - 10 Vdc voltage input
setting

(60Hz)

(0Hz)
0V

0%
6) Setting the time elapsed before PID control starts
Waiting time until starting PID control system can be set to avoid PID control until the control system
6
becomes stable.
The inverter ignores feedback value, carries out operation at the frequency determined by the frequency
command value for the period of time specified with f359, and enters the PID control mode after the
elapsed time.
7) PID control forward/reverse characteristic switch
PID input characteristics can be reversed.
PID set value
 When characteristic is reversed according to parameters, set PID forward/reverse characteristics
selection f380 to 1: Set reverse characteristics.
When characteristic is reversed using logic input terminal, assign function number 54/55, PID

characteristics switching, to an input terminal.
Note) If reverse characteristics is selected for parameter f380 and terminal input at the same time,
Example of 0 - 10 Vdc voltage input
setting
13
(60Hz)
11
(0Hz)
10V

100%
VIA input value

Feedback value
they become forward characteristic.
0V 5V
10 12
0% 100%
VIB input value
Opposite characteristic
×(-1)
Original characteristic
Characteristic selection (parameter or terminal input)
F-86
E6582175
Example of 4 - 20 mAdc voltage input
setting
19
(60Hz)
17
4mA
(0Hz)
16
20%
VIC input value
Output
PID
20mA
18
100%