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If the parameter SP is not correctly set, the protection against dry running may not work correctly.
8.1.2
Anti-Cycling (Protection against continuous cycles without utility request)
If there are leaks in the delivery section of the plant, the system starts and stops cyclically even if no water is intentionally being drawn: even just
a slight leak (a few ml) can cause a fall in pressure which in turn starts the electropump.
The electronic control of the system is able to detect the presence of the leak, based on its recurrence. The Anti-Cycling function can be
excluded or activated in Basic or Smart mode.
In Basic mode, once the condition of recurrence is detected the pump stops and remains waiting to be manually reset.
This condition is communicated to the user with the "ANTICYCLING" message. After the leak has been removed, you can manually force restart
by sending the Error Reset command.
In Smart mode, once the leak condition is detected, the parameter RP is automatically increased to decrease the number of starts over time.
8.1.3
Anti-Freeze (Protection against freezing of water in the system)
The change of state of water from liquid to solid involves an increase in volume. It is therefore essential to ensure that the system does not
remain full of water with temperatures close to freezing point, to avoid breakages of the system. This is the reason why it is recommended to
empty any electropump that is going to remain unused during the winter. However, this system has a protection that prevents ice formation
inside by activating the electropump when the temperature falls to values close to freezing point. In this way the water inside is heated and
freezing prevented.
The Anti-Freeze protection works only if the system is regularly fed: with the plug disconnected or in the absence of
current the protection cannot work.
However, it is advised not to leave the system full during long peri- ods of inactivity: drain the system accurately
through the drainage cap and put it away in a sheltered place.
8.1.4
"PB" Blockage due to supply voltage outside specifications
This occurs when the allowed line voltage at the supply terminal assumes values outside the specifications. It is reset only automatically when
the voltage at the terminal returns within the allowed values.
8.2
Manual reset of error conditions
In error status, the user can cancel the error and force a new attempt by sending the Error Reset command.
8.3
Self-reset of error conditions
For some malfunctions and blockage conditions, the system attempts automatic self-reset.
The auto self-reset procedure concerns in particular:
"BL"
Blockage due to dry operation
"PB"
Blockage due to line voltage outside specifications
"OT"
Blockage due to overheating of the power stages
"OC"
Blockage due to motor overload
"BP"
Blockage due to fault of the pressure sensor
For example, if the system is blocked due to dry running, the device automatically starts a test procedure to check whether the machine is
really left definitively and permanently
comes back), the procedure is interrupted and normal operation is resumed. Table shows the sequences of the operations performed by the
device for the different types of blockage.
Indication
BL
Blockage due to dry operation
Blockage due to line voltage outside
PB
specifications
OT
Blockage due to overheating of the power stages
OC
Blockage due to motor overload
ENGLISH
dry. If during the sequence of operations an attempted reset is successful (for example, the water
Automatic resets of error conditions
Description
Table 5 Self-reset of blockages
Automatic reset sequence
One attempt every 10 minutes for a total of 6 attempts.
-
One attempt every hour for a total of 24 attempts.
-
One attempt every 24 hours for a total of 30 attempts.
-
It is reset when it returns to a specific voltage.
-
It is reset when the temperature of the power stages returns
-
within the specifications.
One attempt every 10 minutes for a total of 6 attempts.
-
One attempt every hour for a total of 24 attempts.
-
One attempt every 24 hours for a total of 30 attempts.
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