187
Frequency setting by analog input (terminal 2, 4)
4.17.3 Response level of analog input and noise elimination (Pr. 74)
The above parameter can be set when
Pr. 160 Extended function display selection
= "0".
Valid for eliminating noise of the frequency setting circuit.
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.)
REMARKS
Pr. 178 STF terminal function selection
must be set to "60" (or
Pr. 179 STR terminal function selection
must be set to "61").
(All are initial values.)
The motor will not rotate ... Why?
Check that [EXT] is lit.
[EXT] is valid when
Pr. 79
= "0" (initial value) or "2."
Use
to lit [EXT].
Check that wiring is correct. Check once again.
Change the frequency (0Hz) of the minimum value of potentiometer (at 0V initial value)
Adjust the frequency in
calibration parameter C2 Terminal 2 frequency setting bias frequency. (Refer to page 188.)
The time constant of the primary delay filter can be set for the external frequency command (analog input (terminal 2, 4)
signal).
Parameter
Number
Name
Initial Value
Setting Range
Description
74
Input filter time constant
1
0 to 8
Primary delay filter time constant for the
analog input.
A larger setting results in a larger filter.
Summary of Contents for FR-F700PJ Series
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