Mitsubishi Electric FR-D720S SC EC, Инструкция по эксплуатации

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Frequency setting by analog input (terminal 2, 4) Parameter
6 - 152
6.15.2 Input filter time constant (Pr. 74)
If the set point signal (terminal 2 or 4) is an unstable signal or contains noise you can filter out
the instability or noise by increasing the setting value of Pr. 74.
The above parameter can be set when Pr. 160 = 0.
Increase the filter time constant if steady operation cannot be performed due to noise. A larger
setting results in slower response. (The time constant can be set between approximately 5ms
to 1s with the setting of 0 to 8.)
Pr.
No.
Name
Initial
Value
Setting
Value
Description Parameters referred to
Refer to
Section
74
Input filter time constant 1 0–8
Set the primary delay filter time constant
for the analog input.
A larger setting results in a larger filter.
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