Filter Time Constant - BONFIGLIOLI ACTIVE Cube ACU 201-01 Operating Instructions Manual

The default
rameterized tolerance band to the hysteresis.
For example, the output variable coming from positive input signals is kept on the
positive minimum value until the input signal becomes lower than the value for the
tolerance band in the negative direction. Then, the output variable follows the set
characteristic.

15.1.1.4 Filter Time Constant

The time constant of the filter for the analog reference value can be set via the pa-
rameter
The time constant indicates the time during which the input signal is averaged by
means of a low pass filter, e.g. in order to eliminate fault effects.
The setting range is between 0 ms and 5000 ms in 15 steps.
Filter Time Constant
0 - Time Constant 0 ms
2 - Time Constant 2 ms
4 - Time Constant 4 ms
8 - Time Constant 8 ms
16 - Time Constant 16 ms
32 - Time Constant 32 ms
64 - Time Constant 64 ms
128 - Time Constant 128 ms
256 - Time Constant 256 ms
512 - Time Constant 512 ms
1000 - Time Constant 1000 ms
2000 - Time Constant 2000 ms
3000 - Time Constant 3000 ms
4000 - Time Constant 4000 ms
5000 - Time Constant 5000 ms
Operating Instructions ACU
06/13
Minimum Frequency
pos. maximum value
pos. minimum value
neg. minimum value
neg. maximum value
Tolerance band with set minimum frequency
451.
Filter Time Constant
451
418 or
Minimum Percentage
(X2/Y2)
zero point
tolerance band
(X1/Y1)
Function
Filter deactivated – analog reference value is
forwarded unfiltered.
Filter activated – averaging of the input signal via
the set value of the filter time constants.
518 extends the pa-
+10 V
(+20 mA)
175