Dynalco SWT-2000 Speed Switch/Speed Transmitter Manual do Utilizador descarregar pdf (Página 22)

Operating Instructions SWT-2000 DYNALCO

6.7.7 Math Function

Go to <Configuration>, <Math>.

Math function is an additional input available for System Limit.

The following Math functions may be constructed.

S1 – S2

S2 – S1

Subtraction of speed values

S1 / S2

S2 / S1

Division of speed values

100% x (S1-S2)/S2

100% x (S2-S1)/S1

Percentage difference

Variance (S1)

Variance (S2)

Variance

Acceleration (S1)

Acceleration (S2)

Speed value acceleration

The speed values are fed through

e.g. for the Math function.

Percentage difference

)12(100

nn −×

n: Speed

Variance

)(

∑

−

S j = 100

Acceleration

altFlankeSFlankeS

alt

−

n: Speed

If the variance for S1, S2 or Analog input needs to be calculated, the measurement time must be set to 5ms

or higher.

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Dynalco SWT-2000 Speed Switch/Speed Transmitter Manual do Utilizador Página 22