Grundfos NBE Series - 7.16.1 Setpoint influence functions

100
0
100 %0
3.5 V0.5
5 V0
10 V0
20 mA0
20 mA
204 °C
4
-50
25
61
85
Y1
Y2
Y3
Y4
X1
Y
X
TM070253
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
7.16.1 Setpoint influence functions
7.16.1.1 Linear function
The setpoint is influenced linearly from 0 to 100 %.
100 %0
3.5 V
0.5
5 V
0
10 V0
20 mA
0
20 mA
4
-50
100
0
204 °C
X
Y
TM070255
Pos. Description
X: External input signal from 0 to 100 %
Y: Setpoint influence from 0 to 100 %
7.16.1.2 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.
100
3.5 V
5 V
10 V
20 mA
20 mA
B
2015100
0.5
0
0
0
4
-50
204 °C
Y
100
X
A, 0
TM070542
Pos.
Description
X: External input signal from 0 to 100 %
Y: Setpoint influence from 0 to 100 %
A: Normal
B: Stop
7.16.1.3 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.
55
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