“Filling” control mode: 1x well, 1x pump, 2x float switches or electrodes

HW

High water level

OFF

Switch-off level

ON

Switch-on level

DR

Dry-running level

When the fill level in the tank drops and the switch on-level is reached, the pump switches on. The tank is filled. When the switch off level is reached, the pump switches off after the set switch-off delay has elapsed.

To prevent the tank from overflowing, install a float switch or electrode in the tank:

  • If the high water level is exceeded, the pump switches off. An error message appears on the display and an alarm sounds.
  • If the water level falls below the high water level, the alarm and error message are automatically reset.

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.
Application diagram
Application diagram

1

Current pump status

4.1

DR

2

Standby pump activated

4.2

OFF

3

Control mode

4.3

ON

4

Switching status of the float switch/electrode

4.5

HW

6

Fieldbus active

Screen display
Screen display

Overview of terminals

Function

DR

OFF

ON

-

-

-

-

HW

Terminal overview symbol

Float switch operating principle

Top contact

closed

closed

closed

closed

Bottom contact

Open

Open

Open

Open

Required menu settings

Menu and value to be set