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F-49
6
5) Adjusting analog command voltages
To use external analog setting (VIB) or feedback input (VIA), perform voltage-scaling adjustments as
required. See Section 6.5.2 for further details.
If the feedback input data is too small, voltage-scaling adjustment data can also be used for gain adjustment.
Example of VIB terminal setting
Example of VIA terminal setting
(voltage input)
Example of VIA terminal setting
(current input)
H
(60Hz)
H
(0Hz)
0V
H
0%
10V
H
100%
H
(60Hz)
H
(0Hz)
0V
H
0%
10V
H
100%
H
(60Hz)
H
(0Hz)
4mA
H
20%
20mA
H
100%
6) Setting the time elapsed before PID control starts
You can specify a waiting time for PID control to prevent the inverter from starting PID control before the
control system becomes stable, for example, after start-up.
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
H
and enters the PID control mode after a lapse of
the specified time.
