DAB E.Box Plus Instruction For Installation And Maintenance page 119

- Dry running protection/alarm
When the pressure falls to a value of less than 0.5 bar for about 10 seconds, the alarm is activated with stopping of
the pump and lighting of the led. The dry running protection/alarm is activated in pressure boosting mode when an
analog pressure sensor is connected.
This protection may be selected by the DS_A4.
After 1 minute there will be 1 reset attempt for maximum 30 seconds. If this attempt succeeds the alarm is reset,
otherwise the pump will remain in blocked status.
The dry running protection/alarm is not activated if the electropumps are started manually.
To solve the problem, check the hydraulic part of the plant. Check that everything is in order. Check also the pressure
sensor and ensure the pressure reading is regular.
- Protection against too frequent starts
This error appears when the system needs more than 8 starts per pump per minute; this normally occurs when there
are leaks in the system or the expansion vessel is deflated.
The protection against rapid starts allows each pump a maximum number of 8 starts per minute.
The protection does not intervene if the number of starts per minute is less than 8.
To solve the problem, check whether there are any leaks and check the expansion vessel if present.
- Current overload protection/alarm (overload protection)
This alarm appears in the event of a current overload on the pumps. The alarm is specific for the pump.
For each pump the current overload alarm allows 6 auto-reset attempts, every 10 minutes, in the space of 24 working
hours. At the seventh attempt the panel no longer makes auto-resets, unless after manual reset by the user. To solve
this problem, check the pumps, the wiring, and ensure the rated current of the pumps is set correctly. This error may
be generated by a blocked pump.
- Pressure or depth sensor alarm
If operation with a sensor is selected, but the panel does not detect the sensor, the pumps are deactivated and an
alarm is indicated. In this case check the wiring.
If the sensor has been correctly installed, but the sensor signal is outside the measuring range, the pumps are
deactivated and an alarm is indicated. Check the pressure in the plant and, if the sensor reading is not correct, change
the sensor.
- Floats and/or probes incoherence alarm
This error occurs when the state of the floats or of the level probes is not correct, for example the float on the highest
level of the tank indicates the presence of water and the lower floats do not. To solve these problems, check the wiring
and the state of the floats. It is possible to see the position detected by the panel on the display. It is recommended to
check that there are no holes in the floats.
- Dip-Switch alarm
The Dip Switch alarm is activated in the following cases:
Incoherence of the Dip Switch with the respective functions (incorrect configuration).
To reset the alarm:

Return the Dip Switches to the correct position.

Press the RESET key.
Dip Switch regulation with the panel live.
To reset the alarm, press the RESET key.
- Error alarm
If pressing of the buttons on the front board is detected in the first 30 seconds of power supply, the buttons
incoherence alarm is activated. Check that the buttons function efficiently!
- Input voltage
If the alternating input voltage of the panel is not within the limits established in the specifications, the alarm is given
for irregular alternating input voltage. The alarm is deactivated one minute after the alternating input voltage returns
within the limits. If this alarm occurs, check the panel input voltage. If it is regular, the panel must be replaced.
ENGLISH
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