6
FILLING FUNCTION
The E.box panel can be used for making filling systems. As control inputs, any of the following may be used: floats, level probes or a depth sensor.
The general diagram is as follows:
Level probes
6.1
Electrical connections of pump and supply
Connect the supply line and the pumps as described in chapter 2.1.
6.2
Control inputs
As inputs the E.box accepts either floats, level probes or depth sensors. Particular care must be taken:
Use floats for filling, closed contact with low water level, see Figure 19 Diagram of filling system inputs.
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Floats and level probes cannot be used at the same time.
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Level probes can only be used with clear, clean water.
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The maximum level and minimum level alarms can be generated by floats or by level probes, or, if the depth sensor is used, by thresholds
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of the value read by the sensor itself.
6.3
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 the maximum 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 the minimum level is reached, the pumps are activated. The alarm leds blink, the corresponding alarm outputs are
activated.
If the display is present, in all cases the type of alarm is indicated.
When the alarm conditions no longer exist, the E.box resumes normal operation.
Depth
Floats
sensor
Figure 19: Diagram of filling system inputs
ENGLISH
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Open contact
Closed contact