Grundfos TPE Series - Page 41

English (GB)
41
Example with constant curve with linear
influence
Actual setpoint: actual input signal x (setpoint -
user-set minimum speed) + user-set minimum
speed.
At a user-set minimum speed of 25 %, a setpoint of
85 % and an external setpoint of 60 %, the actual
setpoint is 0.60 x (85 - 25) + 25 = 61 %. See fig. 46.
Fig. 46 Example of setpoint influence with
constant curve
Factory setting
See section 30. Factory settings.
13.16.1 Setpoint influence
The table below gives an overview of the types of
setpoint influence and the availability depending on
pump type.
You can select these functions:
•Not active
When set to Not active, the setpoint is not
influenced from any external function.
• Linear function
The setpoint is influenced linearly from 0 to 100
%. See fig. 47.
Fig. 47 Linear function
• 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
changes to operating mode Stop. If the input
signal is above 15 %, the operating mode is
changed back to Normal. See fig. 48.
Fig. 48 Linear with Stop
TM06 4525 2515
Pump variant Setpoint influence
TPE, TPED, NBE,
NBGE, NKE, NKGE
●
TPE, TPED, NBE, NKE
Series 2000
●
Setpoint influence
Pump type
TPE,
TPED,
NBE,
NBGE,
NKE,
NKGE
TPE,
TPED,
NBE,
NKE
Series
2000
Not active ●●
Linear function ●●
Linear with Stop ●●
Influence table ●●
100
0
100 %
0
3.5 V0.5
5 V0
10 V0
20 mA0
20 mA4
-50 204 C
25
61
85
External
setpoint
signal
Speed [%]
Fixed
maximum
speed
Actual input
signal, 60 %
User-set
minimum.
speed
Setpoint
Actual setpoint
TM06 4166 1615TM06 4167 1615
100
0
100 %0
3.5 V0.5
5 V0
10 V0
20 mA0
20 mA4
-50 204 C
Setpoint influence [%]
External
input
100
0
20 100 %0
3.5 V0.5
5 V0
10 V0
20 mA0
20 mA4
-50 204 C
Setpoint influence [%]
External
input
Normal
Stop