Lk: Protection Against Too Frequent Starts; Oc: Current Overload Protection/Alarm (Overload Protection); Ri: Ri Alarms; Ni: Ni Alarms - DAB E.Box Plus Instrucciones De Instalación Y Mantenimiento

This protection can be activated by setting the parameter TB at a value other than zero.
The protection intervenes:

When the pressure falls to a value lower than the parameter MP (default 0.45bar) for a time equal to the
parameter TB, the alarm is activated with stopping of the pump and lighting of the led.

If the dry running factor for one of the pumps falls below this value during operation. For further information on
the setting of SO, see paragraphs 9.4.4 and 9.4.5.
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.

- LK: 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.

- OC: 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.

- RI: RI alarms

These errors come from input R. The panel behaviour is different depending on the operating mode. The solution of
the problem always consists of checking the signal arriving from the input R.
Message
Pressure switch for maximum
pressure
Maximum level float
Minimum level float
Minimum level probe
Maximum level probe

- NI: NI alarms

These errors come from input N. The panel behaviour is different depending on the operating mode. The solution of
the problem always consists of checking the signal arriving from the input N.
ENGLISH
This error appears in pressure boosting and indicates that the maximum
pressure switch is activated or that the contact R has not been jumpered.
The E.Box stops the pumps.
This error appears in drainage and indicates that the maximum level float is
activated or that the contact R has been jumpered. The E.Box activates the
pumps.
This error appears in filling and indicates that the minimum level float is
activated or that the contact R has been jumpered. The E.Box activates the
pumps.
This error appears in filling and indicates that the level probe for minimum
level is activated or that the contact R has not been jumpered. The E.Box
activates the pumps.
This error appears in drainage and indicates that the level probe for
maximum level is activated or that the contact R has been jumpered. The
E.Box activates the pumps.

Table 20: RI alarms

120
Meaning and description