BONFIGLIOLI Vectron ACTIVE Manual page 56

This operation mode limits the input characteristic to the range between 5% and
100% of the analog input signal. If the value for a characteristic point of the X axis is
outside 5%, it is mapped to the characteristic point (2 V / 0 Hz).
The characteristic point on the X axis is calculated according to the following formula:
characteri
54
54
Y
(X2=80% / Y2=85%)
42.50Hz
3.00V
-25.00Hz
(X1=30% / Y1=-50%)
Operation mode "21 – unipolar 2...10 V / 4...20 mA"
stic point X =
Y
(X2=80% / Y2=85%)
42.50Hz
-7.60V
-25.00Hz
(X1=-70% / Y1=-50%)
Y
(X2=80% / Y2=85%)
42.50Hz
-25.00Hz
(X1=30% / Y1=-50%)
Characteristic point 1:
X1 = 30,00% · 10 V = 3.00 V
Y1 = -50.00% · 50.00 Hz = -25.00 Hz
Characteristic point 2:
X2 = 80.00% · 10 V = 8.00 V
Y2 = 85.00% · 50.00 Hz = 42.50 Hz
X
Tolerance band:
8.00V
ΔX = 2.00% · 10 V = 0.20 V
The change of direction of rotation is done
in the example at an analog input signal of
4.85 V, with a tolerance band of ±0.20 V.
parameter value X ⋅ (100.00%
Characteristic point 1:
X1 = [-70.00% · (100.00% - 20.00%)
+ 20.00% ] · 10 V = -7.60 V
Y1 = -50.00% · 50.00 Hz = -25.00 Hz
Characteristic point 2:
X2 = [80.00% · (100.00% - 20.00%)
X
+ 20.00% ] · 10 V = 8.40 V
Y2 = 85.00% · 50.00 Hz = 42.50 Hz
8.40V
Tolerance band:
ΔX = [2.00% · (100.00% - 20.00%)
· 10 V] = 0.16 V
The characteristic point 1 has been dis-
placed to the point (2.00V / 0.00 Hz). The
parameter
taken into account in this example, as no
change of sign of the reference frequency
value takes place.
Characteristic point 1:
X1 = [30,00% · (100.00% - 20.00%)
+ 20.00% ] · 10 V = 4.40 V
Y1 = -50.00% · 50.00 Hz = -25.00 Hz
Characteristic point 2:
X2 = [80.00% · (100.00% - 20.00%)
+ 20.00% ] · 10 V = 8.40 V
X
4.40V
Y2 = 85.00% · 50.00 Hz = 42.50 Hz
8.40V
Tolerance band:
ΔX = [2.00% · (100.00% - 20.00%)
· 10 V] = 0.16 V
The change of direction of rotation is done
in the example at an analog input signal of
5.88 V, with a tolerance band of ±0.16 V.
- 20.00%) + 20.00%
Tolerance band
560 is not
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