5 Operation
5.3.4 Speed Reference Filter
5-26
Actual accel/decel time can be calculated with the following equation.
5.3.4 Speed Reference Filter
This smoothens the speed reference by applying a first order lag filter to the analog speed reference (V-REF)
input.
Note: The user need not usually change the setting. A value that is too large, however, will slow down response.
Actual accel time = Soft start time (accel time Pn305)
Target speed
Max. speed
Target speed
Max. speed
×
Actual decel time = Soft start time (decel time Pn306)
×
Pn305
Pn306
Max. speed
Target speed
Actual
decel time
Actual
accel time
Pn307
Speed Reference Filter Time Constant
Classification
Setting Range Setting Unit Factory Setting When Enabled
0 to 65535 0.01 ms 40 Immediately Setup
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