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Frequency setting by analog input (terminal 2, 4)
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.
Pr.
Name
No.
74
Input filter time constant
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.)
6 - 152
Initial
Setting
Description
Value
Value
Set the primary delay filter time constant
1
0–8
for the analog input.
A larger setting results in a larger filter.
Parameter
Refer to
Parameters referred to
Section
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- Terminal Connection Diagram
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