MTS Series 793 Utility Software - Manual (Page 79)

Description Item
Input Filter Settings:
Filter Type: Used to select the type of digital filter used to filter the
input signal. Filter selections include: Disabled, Bessel, Butterworth,
and Elliptical. (Default=Bessel, 300 Hz.)
Filter: This is the frequency where the filter, selected in the Filter Type
box, attenuates the signal by 3 dB.
Low frequency limit = >0 Hz (A setting of 0 disables the filter.) High
frequency limit = 1/2 the system rate.
Important:
Rotary SSI/Gurley devices with Turns Counting = False: filtering
may be undesirable because as the signal is filtered, the angle
step that occurs every 360 degrees causes ringing due to the
high-frequency content of the step. Filtering occurs normally if
the encoder is operated in a range that does not include the
angle step.
MTS Series 793 Utility Software 65
HWI Hardware Settings