Cleveland Motion Controls Quantum Tension Controller REV A - Manual (Page 20)

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Menu INPUTS
2.2 FILTERING
All the inputs can be filtered. Filtering makes the regulation less sensitive to electric and
mechanical disturbances but generates a delay in the system response time.
A few rules:
Measure :
Filtering depends on the application and product.
Converting force from 100.
Converting force on elastic product from 400.
Dancer from 0.
Set point: Useful for external set point to filter the signal or simulate a ramp.
Diameter: It is recommended to use filtering on this signal because diameter is changing
slowly.
The recommended initial value is 100.
Tachymeter: Try to find a compromise between noise reduction and quick response. The
recommended initial value is 10
The QUANTUM uses a first order digital filter, the larger the number you give, the lower the cut
off frequency (Fc) will be and therefore the more filtering you will obtain.
Fc 18 20 22 25 29 34 40 50 70 110 150 240
numbers seize 51 45 40 35 30 25 20 15 10 5 3 1
Fc 1 2 3 4 5 6 7 8 9 10 12 15
numbers seized 1000 500 330 245 195 162 138 120 106 95 78 62