Connection Of The Alarm Outputs; Connection Of Floats Or Level Probes; Depth Sensor Connection; Figure 22: Inputs - DAB E.Box Plus Instrucciones De Instalación Y Mantenimiento

6.4 Connection of the alarm outputs

If alarms occur, this is indicated by the E.box in three ways:

With the leds on the front panel, which give a number of blinks depending on the error.

With the outputs Q1, Q2, Q3 which short circuit as specified in Table 17. The operating logic of the alarms is
as follows: Q1 closes following malfunctions of pump 1, Q2 of pump 2 and Q3 for general errors.

With the indications on the display (if present). In this case it is also possible to see the alarm log.
If the panel is not fed, Q1, Q2 and Q3 are closed, so they give an alarm signal.

6.5 Connection of floats or level probes

2 or 3 control inputs can be used which must be connected as follows:

System with 2 floats: in this case inputs B and C are used (A must not be used). The floats in the tank must
be positioned as in Figure 19. For electrical installation, see Figure 22.

System with 2 level probes: in this case inputs B and C are used (A must not be jumpered). The level
probes in the tank must be positioned as in Figure 19. For electrical installation, see Figure 22.

System with 3 floats or level probes: in this case inputs A, B and C are used. The floats or level probes
must be positioned as in Figure 19. For electrical installation, see Figure 22.
Common contact of the inputs A, B, C, R, N. There is only one common contact for all the inputs and it
is connected to the even terminals from 2 to 10. So, if electric probes are used, the common contact for
the inputs: A, B, C, R, N must be connected to the terminals with even numbers: 2, 4, 6, 8, 10.
Level probes: they can be used only with clear, clean water.

6.6 Depth sensor connection

The E.Box may use a depth sensor as a control device. If an E.box with a display is used, the maximum or minimum
level alarms can be generated with the information from the depth sensor. So it is not necessary to connect floats or
level probes to the inputs R or N. If maximum reliability is desired, as well as the depth sensor 2 floats or level probes
can also be used, for the alarms R and N.
The depth sensor must be positioned near the bottom of the tank, ensuring that it is above any solid residue, present
or future.
ENGLISH

Figure 22: Inputs

Depth sensor connections
4 – 20mA
Terminal
11
12

Figure 23: Depth sensor connection

86
Cable to be connected
- OUT/GND
+VCC