Grundfos TPE Series - Page 42

English (GB)
42
• Influence table
The setpoint is influenced by a curve made out of
two to eight points. There will be a straight line
between the points and a horizontal line before
the first point and after the last point.
Fig. 49 Influence table, example with five points
13.16.2 "Predefined setpoints"
You can set and activate seven predefined setpoints
by combining the input signals to digital inputs 2, 3
and 4. See the table below.
Set the digital inputs 2, 3 and 4 to "
Predefined
setpoints" if all seven predefined setpoints are to be
used. You can also set one or two of the digital inputs
to "Predefined setpoints" but this limits the number of
predefined setpoints available.
Example
Figure 50 shows how you can use the digital inputs
to set seven predefined setpoints. Digital input 2 is
open and digital inputs 3 and 4 are closed. If you
compare with the table above, you can see that
"Predefined setpoint 6" is activated.
Fig. 50 Principle sketch showing how
predefined setpoints function
If all digital inputs are open, the pump either stops or
runs at the normal setpoint. Set the desired action
with Grundfos GO or with the advanced control
panel.
Factory setting
See section 30. Factory settings.
TM06 4170 1615
Before the Digital inputs can be enabled,
set one of the analog inputs or Pt100/1000
inputs to External setpoint function.
See sections 13.7 Analog inputs and
13.9 Pt100/1000 inputs.
Pump variant "Predefined setpoints"
TPE, TPED, NBE,
NBGE, NKE, NKGE
●
TPE, TPED, NBE, NKE
Series 2000
●
100
0
100 %0
3.5 V0.5
5 V0
10 V0
20 mA0
20 mA4
-50 204 C
Setpoint influence [%]
External
input
Digital inputs
Setpoint
234
0 0 0 Normal setpoint or stop
1 0 0 Predefined setpoint 1
0 1 0 Predefined setpoint 2
1 1 0 Predefined setpoint 3
0 0 1 Predefined setpoint 4
1 0 1 Predefined setpoint 5
0 1 1 Predefined setpoint 6
1 1 1 Predefined setpoint 7
0: Open contact
1: Closed contact
TM06 4269 1815
0
1
2
3
4
5
6
7
Digital input 4
Setpoint 1
Setpoint 2
Setpoint 3
Setpoint 4
Setpoint 5
Setpoint 6
Setpoint 7
Digital input 3
Digital input 2
Actual setpoint
Stop
Normal
setpoint