Toshiba Q9 Plus Bypass ASD Installation & Operation Manual page 263

5) Adjusting feedback input
Make adjustment by converting input level of the feedback amount into frequency. Refer to section 6.6.2 for
details.
Example of 0 - 10 Vdc voltage input
setting

(60Hz)

(0Hz)
0V

0%
VIA input value
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
becomes stable.
The inverter ignores feedback input signals, carries out operation at the frequency determined by the amount
of processing 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.
Process quantity
When characteristic is reversed according to parameters, set PID calculation reverse selection parameter
f380 is 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)
0V
10V
10

0%
100%
Opposite characteristic
−
Original characteristic
Feedback amount
F-83
Example of 4 - 20 mAdc voltage input
setting
19
(60Hz)
17
5V
(0Hz)
12
100%
VIB input value
×(-1)
Characteristic selection (parameter or terminal input)
E6581611
4mA 20mA
16 18
20% 100%
VIC input value
Output
PID
6