Toshiba Q9 Plus ASD, Installation & Operation Manual

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E6581611
F-83
6
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 Example of 0 - 10 Vdc voltage input
setting Example of 4 - 20 mAdc voltage input
setting

(60Hz)

(0Hz)
0V

0%
10V

100%
VIA input value
O
utp
ut
fr
e
qu
en
cy
 13
(60Hz)
 11
(0Hz)
0V
 10
0%
5V
 12
100%
VIB input value
O
utp
ut
fr
e
qu
en
cy
 19
(60Hz)
 17
(0Hz)
4mA
 16
20%
20mA
 18
100%
VIC input value
O
utp
ut
fr
e
qu
en
cy
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
Feedback amount
−
×(-1)
PID
Output
Opposite characteristic
Original characteristic
Characteristic selection (parameter or terminal input)
x
When characteristic is reversed according to parameters, set PID calculation reverse selection parameter
f380 is 1: Set reverse characteristics.
x
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,