E6582175
F-40
6
6.10.3 Fine adjustment of analog frequency command
f470
: VIA input bias
f473
: VIB input gain
f471
: VIA input gain
f474
: VIC input bias
f472
: VIB input bias
f475
: VIC input gain
Function
These parameters are used to fine adjust the relation between the frequency command input through
the analog input terminal VIA, VIB, VIC and the output frequency.
Use these parameters to make fine adjustments after making rough adjustments using the
parameters
f201
to
f204
,
f210
to
f213
,
f216
to
f219
The figure below shows the characteristic of the frequency command input through the VI terminal and that of
the output frequency.
* Bias adjustment of analog input terminal (
f470
,
f472
,
f474
)
Decrease the value in case frequency is output even though the frequency command is 0 (zero) Hz.
* Gain adjustment of analog input terminal (
f471
,
f473
,
f475
)
Increase the value in case the output frequency doesn’t reach the maximum frequency even though the
maximum voltage and current are applied.
Output frequency (Hz)
Maximum frequency
f470
f472
f474
0%
0V
4mA
100%
10Vdc
20mAdc
f471
f473
f475
Large
Small
Large
Small
Frequency setting signal (Analog input value)
0
Summary of Contents for TOSVERT VF-S15 series
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