Protection Systems; Description Of Blockages; Bl" Aanti Dry-Run (Protection Against Dry Running) - DAB e.sybox Instructions Pour L'installation Et L'entretien

GB
ENGLISH
utes of the procedure the product is still not primed, the interface display
sends a failure message. Disconnect the power supply, load the product
adding new water, wait 10 minutes and repeat the procedure from the
moment you put the plug in the socket.
Press "-" to confirm that you do not want to start the priming procedure.
The product remains in alarm status
Operation
Once the electropump is primed, the system starts regular operation ac-
cording to the configured parameters: it starts automatically when the tap
is turned on, supplies water at the set pressure (SP), keeps the pressure
constant even when other taps are turned on, stops automatically after
time T2 once the switching off conditions are reached (T2 can be set by
the user, factory value 10 sec).

4 - PROTECTION SYSTEMS

IThe device is equipped with protection systems to preserve the pump,
the motor, the supply line and the inverter. If one or more protections trip,
the one with the highest priority is immediately notified on the display.
Depending on the type of error the motor may stop, but when normal
conditions are restored the error status may be cancelled immediately or
only after a certain time, following an automatic reset.
In the case of blockage due to water lack (BL), blockage due to motor
overload (OC), blockage due to direct short circuit between the motor
phases (SC), you can try to exit the error conditions manually by simul-
taneously pressing and releasing the + and – keys. If the error condition
remains, you must take steps to eliminate the cause of the fault.
Alarm in the fault log
Display indication
PD
FA
Table 1: Alarms
74
Description
Irregular switching off
Problems in the cooling system
Blockage conditions
Display indication
PH Cutout due to pump overheating
BL Blockage due to water lack
BP1 Blockage due to reading error on the internal pressure sensor
BP2 Blockage due to reading error on the remote pressure sensor
PB Blockage due to supply voltage outside specifications
OT Blockage due to overheating of the power stages
OC Blockage due to motor overload
SC Blockage due to short circuit between the motor phases
ESC Blockage due to short circuit to earth
HL Hot liquid
NC Blockage due to motor disconnected
Ei Blockage due to i-th internal error
Vi Blockage due to i-th internal voltage out of tolerance
Table 2: Indications of blockages

4.1 - Description of blockages

4.1.1 - "BL" Anti Dry-Run (Protection against dry running)
In the case of lack of water the pump is stopped automatically after the
time TB. This is indicated by the red "Alarm" led and by the letters "BL" on
the display.
After having restored the correct flow of water you can try to leave the
protective block manually by pressing the "+" and "-" keys simultaneously
and then releasing them.
If the alarm status remains, or if the user does not intervene by restoring
the flow of water and resetting the pump, the automatic restart will try to
Description