Grundfos CRE Series Installation And Operating Instructions Manual page 64

Y
100
Y1
85
Y2
Y3 61
25
Y4
0
0
0.5
0
0
0
4
-50
Pos. Description
X: External input signal from 0 to 100 %
Y: Setpoint influence from 0 to 100 %
X1: Actual input signal, 60 %
Y1: Fixed maximum speed in percentage
Y2: Setpoint speed in percentage
Y3: Actual setpoint speed in percentage
Y4: User-set minimum speed in percentage
9.18.1 Setpoint influence functions
9.18.1.1 Linear function
The setpoint is influenced linearly from 0 to 100 %.
Y
100
0
0
0.5
0
0
0
4
-50
Pos. Description
X: External input signal from 0 to 100 %
64
X
100 %
X1
3.5 V
5 V
10 V
20 mA
20 mA
204 °C
100 % X
3.5 V
5 V
10 V
20 mA
20 mA
204 °C
Pos. Description
Y: Setpoint influence from 0 to 100 %
9.18.1.2 Linear with Stop
In the input signal range from 20 to 100 %, the
setpoint is influenced linearly. If the input signal is
below 10 %, the motor changes to the Stop operating
mode. If the input signal increases more than 15 %,
the operating mode changes back to Normal.
Y
100
A, 0
B
0 10 15 20
0.5
0
0
0
4
-50
Pos. Description
X: External input signal from 0 to 100 %
Y: Setpoint influence from 0 to 100 %
A: Normal
B: Stop
9.18.1.3 Influence table
The setpoint is influenced by a curve made of two to
eight points. There is a straight line between the
points and a horizontal line before the first point and
after the last point.
Y
100
0
0
0.5
0
0
0
4
-50
100 X
3.5 V
5 V
10 V
20 mA
20 mA
204 °C
X
100 %
3.5 V
5 V
10 V
20 mA
20 mA
204 °C