39
System with flow switch
Make the following additional settings:
1. Mark Go to setting of digital input with or , and
press . Now the display Digital inputs (4.3.7) appears.
2. Select the digital input where the flow switch is connected with
or , and press .
3. Mark Flow switch with or , press and return with
.
System with flowmeter
Make the following additional settings:
1. Mark Go to setting of analog input with or , and
press . Now the display Analog inputs (4.3.8) appears.
2. Select the analog input where the flowmeter is connected, and
set up the input for the flowmeter by selecting Flow rate.
3. Return to Stop function by pressing twice.
4. Mark Stop limit with or .
5. Set the value with or , and save with .
Factory setting
The function is activated in booster applications with the settings
in the table.
The function is deactivated in all other applications.
11.7.24 Soft pressure build-up (4.3.3)
Fig. 64 Soft pressure build-up
Description
This function is typically used in booster applications and ensures
a smooth start-up of systems with for instance empty pipes.
Start-up takes place in two phases. See fig. 65.
1. Filling phase.
The pipework is slowly filled with water. When the pressure
sensor of the system detects that the pipework has been filled,
phase two begins.
2. Pressure build-up phase.
The system pressure is increased until the setpoint is
reached. The pressure build-up takes place over a ramp time.
If the setpoint is not reached within a given time, a warning or
an alarm can be given, and the pumps can be stopped at the
same time.
Fig. 65 Filling and pressure build-up phases
Setting range
• Activation of the function.
• Setting of pump speed.
• Setting of number of pumps.
• Setting of filling pressure.
• Setting of maximum filling time.
• Setting of warning or alarm + stop.
• Setting of ramp time for the pressure build-up phase.
Setting via control panel
1. Mark the Settings menu with
2. Mark Secondary functions with or , and press .
3. Mark Soft pressure build-up with or , and press
.
4. Mark Speed with or .
5. Set the value with or , and save with .
6. Mark Number of pumps with or .
7. Set the value with or , and save with .
8. Mark Filling pressure with or .
9. Set the value with or , and save with .
10. Mark Max. time with or .
11. Set the value with or , and save with .
12. Mark Warning or Alarm + stop with or , and press
.
13. Mark Ramp time with or .
14. Set the value
with or , and save with .
15. Mark Activated, and press .
Factory setting
The function is deactivated.
An open contact indicates low flow.
On/off band: 25 %
Min. flow rate: 30 % of the nominal flow rate of one pump
TM03 8970 4807
TM03 9037 3207
1. Filling phase
2. Pressure build-up phase
H [m]
Filling time Ramp time
Time [sec]
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