BONFIGLIOLI Active Cube User Manual

03/12 EM-ABS-01 for ACU 87
Operation mode “21 – unipolar 2-10V/4-20mA”
T
his operation mode limits the input characteristic to the area between 20% and
100% of the analog signal. If the value for a characteristic point of the X axis is out-
side 0%, 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:
20,00%20,00%)-(100,00%ert
X
Parameterwpunkt
X
Kennlinien +
⋅
=
(X2=80% / Y2=85%)
8.40V
Y
X
-25.00Hz
42.50Hz
(X1=-70% / Y1=-50%)
-7.60V
Point 1:
X1 = [-70.00% · (100.00% - 20.00%)
+ 20.00% ] · 10 V = -7.60 V
Y
1 = -50.00% · 50.00 Hz = -25.00 Hz
Point 2:
X2 = [80.00% · (100.00% - 20.00%)
+ 20.00% ] · 10 V = 8.40 V
Y
2 = 85.00% · 50.00 Hz = 42.50 Hz
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
Tolerance band 560 is not
taken into account in this example, as no
change of sign of the reference frequency
value takes place.
(X2=80% / Y2=85%)
8.40V
Y
X
-25.00Hz
42.50Hz
(X1=30% / Y1=-50%)
4.40V
Point 1:
X1 = [30.00% · (100.00% - 20.00%)
+ 20.00% ] · 10 V = 4.40 V
Y
1 = -50.00% · 50.00 Hz = -25.00 Hz
Point 2:
X2 = [80.00% · (100.00% - 20.00%)
+ 20.00% ] · 10 V = 8.40 V
Y
2 = 85.00% · 50.00 Hz = 42.50 Hz
Tolerance band:
ΔX = [2.00% · (100.00% - 20.00%)
· 10 V] = 0.16 V
T
he direction of rotation is chan
g
ed in this
example at an analog input signal of 5.88
V
, with a tolerance band of ±0.16 V.

BONFIGLIOLI Active Cube Specifications

General

Brand	BONFIGLIOLI
Model	Active Cube
Category	Inverter
Language	English