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Beschikbare talen
Beschikbare talen
6
FILLING FUNCTION
The Ebox 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 Ebox 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.
•
Floats and level probes cannot be used at the same time.
•
Level probes can only be used with clear, clean water.
•
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 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 Ebox 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 Ebox resumes normal operation.
Maximum level alarm: the signal for this alarm may come from a float, from a level probe, or from the depth sensor (only
•
for Ebox with display). The level probe or float must be connected to terminal N of the Ebox and positioned in the tank in the
highest point that the liquid can safely reach.
Note: if this alarm is not used, the terminal N must be jumpered except in the case where level probes are
used.
ENGLISH
Depth
Floats
sensor
Figure 19: Diagram of filling system inputs
79
Open contact
Closed contact
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