“Constant pressure control p-c” control mode: 2x pumps, with pressure sensor
1 | Activation point |
2 | 1st deactivation point |
3 | 2nd deactivation point |
The pressure sensor detects the actual pressure value. The pumps are switched on and off depending on the set thresholds:
- If the pressure in the system falls below the activation threshold, both pumps switch on.
- When the first deactivation threshold is exceeded, the first pump switches off after the set switch-off delay has elapsed.
- When the second deactivation threshold is exceeded, the second pump switches off after the set switch-off delay has elapsed.
To protect the pump from a dry run, install an additional float switch or electrode in the well:
- If the water level falls below the dry running level, the pump switches off. An error message appears on the display and an alarm sounds.
- If the dry-running level is exceeded, the alarm and error message are automatically reset.
1 | Current pump status |
2 | Standby pump activated |
3 | Control mode |
4 | Current pressure in the tank |
6 | Fieldbus active |
Overview of terminals
Function | DR | - | - | - | - | - | Pressure sensor | - |
Terminal overview symbol |
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Float switch operating principle | ||||||||
Top contact | closed | − | − | − | − | − | − | - |
Bottom contact | open | − | − | − | − | − | − | - |
Required menu settings
Menu and value to be set |
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