Draining Function; Electrical Connections Of Pump And Supply; Control Inputs; Connection Of Additional Protections: Overflow, Water Lack, Motor Thermal Protection - DAB E.Box Plus Instrucciones De Instalación Y Mantenimiento

7 DRAINING FUNCTION

The E.box panel can be used as a control and protection panel for draining systems. As control inputs, any of the
following may be used: floats, level probes or a depth sensor.
The general diagram is as follows:
Depth sensor

7.1 Electrical connections of pump and supply

Connect the supply line and the pumps as described in chapter 2.1.

7.2 Control inputs

As inputs the E.box accepts either floats, level probes or depth sensors. Particular care must be taken:

Use floats for draining, closed contact with low water level, see Figure 31 draining.

Floats and level probes cannot be used at the same time.

Level probes can only be used with clear, clean water.

If the depth sensor is being used, the maximum level and minimum level alarms can be generated by floats or
by level probes, or by thresholds of the value read by the sensor itself.

7.3 Connection of additional protections: overflow, water lack, motor thermal protection

It is possible, but not necessary, to use the alarm inputs to the E.box so that the pumps stop in the case of reaching
too low a level, or too high motor temperature. In the case of an alarm, the pumps stop, the alarm leds blink, the
corresponding alarm outputs are activated.
If too high a level is reached, the pumps are activated. The alarm leds blink, the corresponding
alarm outputs are activated.
ENGLISH
Floats or level
probes

Figure 31: Draining system diagram

92
Closed contact
Open contact