ENGLISH
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14.4 Overcurrent protection/alarm
(overload protection)
When the overcurrent alarm intervenes the yellow
warning light is lit for the respective pump P1 or P2,
located on the front board of the electric panel (par.
8 – ref. 5/8).
For each pump the overcurrent 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.
14.5 Dry running protection/alarm
The dry running protection/alarm is activated in a
pressure boosting situation when 1 analog pressure
sensor is connected.
This protection may be selected by the DS_A4.
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 yellow led
(par. 9 – ref. 5/8).
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.
14.6 Protection against rapid starts.
The protection against rapid starts allows each pump
a maximum number of 8 starts per minute.
If the protection is activated, the yellow led for
the respective pump on the front board (par. 9 –
ref. 5/8) will blink.
The protection does not intervene if the number of
starts per minute is less than 8.
14.7 Lack of phase and KK protection.
When the lack of phase or KK protection intervenes
(motor thermal protection), the yellow warning light
blinks for the respective pump P1 or P2, located on
the front board of the electric panel (par. 9 – ref. 5/8).
For each pump the alarm allows a series of restart
attempts with a variable pause time between one start
and the next which is increased by 1 minute for the
first 60 minutes (1-2-3 min.... 60 min.), after which
there will be one attempt every hour.
If this attempt succeeds the protection is reset and the
warning light goes off.
14.8 Buttons incoherence 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!
14.9 Floats and/or probes incoherence alarm.
If installation has not been carried out correctly or if
there is a malfunction of the floats (and/or probes)
which causes the activation of only the float C with the
starting of both pumps, the floats and/or probes
incoherence alarm will be activated.
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