Grundfos TPE 2 Series Installation And Operating Instructions Manual page 40

14.17.1 Setpoint influence
The table below gives an overview of the types of setpoint
influence and the availability depending on pump type.
Setpoint influence
Not active
Linear function
Linear with Stop
Linear with Min.
Inverse function
Inverse with Stop
Inverse with Min.
Influence table
Influence table with Stop at Min.
Influence table with Stop at Max.
You can select these functions:
• Not active
When set to "Not active", the setpoint will not be influenced
from any external function.
Linear function
•
The setpoint is influenced linearly from 0 to 100 %. See fig. 61.
Setpoint influence [%]
100
0
0
0.5
0
0
0
4
-50
Fig. 61 Linear function
40
Pump type
TPE3 TPE2
TPE3 D TPE2 D
● ●
● ●
- ●
● ●
- ●
- ●
- ●
- ●
- ●
- ●
External input
100 %
3.5 V
5 V
10 V
20 mA
20 mA
204 C
• "Linear with Stop" and "Linear with Min."
– 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 pump will change to
operating mode "Stop".
If the input signal is above 15 %, the operating mode will be
changed back to "Normal". See fig. 62.
– Linear with Min.
In the input signal range from 20 to 100 %, the setpoint is
influenced linearly.
If the input signal is below 10 %, the pump will change to
operating mode "Min.".
If the input signal is increased above 15 %, the operating
mode will be changed back to "Normal". See fig. 62.
Setpoint influence [%]
100
0
0 20
0.5
0
0
0
4
-50
Normal
Min. or
Stop
Fig. 62 "Linear with Stop" and "Linear with Min."
• Linear with Min.
The setpoint is influenced inversely from 0 to 100 %.
See fig. 63.
Setpoint influence [%]
100
0
0
0.5
0
0
0
4
-50
Fig. 63 Linear with Min.
External
100 %
input
3.5 V
5 V
10 V
20 mA
20 mA
204 C
External input
100 %
3.5 V
5 V
10 V
20 mA
20 mA
204 C