DAB MCE-150/P Instrucciones De Instalación Y Mantenimiento página 87

Voltage-free
I1
I2
I3
I4
With reference to the example in Figure 10 and using the factory settings of the inputs (I1 = 1; I2 = 3; I3 = 5;
I4=10) the following is obtained:

When the switch is closed on I1 the pump blocks and error code "F1" is displayed
(e.g. I1 connected to a float; see para. 6.6.13.2 External float function settings).

When the switch is closed on I2 the control pressure becomes "P2"
(see para. 6.6.13.3 Auxiliary pressure input function settings).

When the switch is closed on I3 the pump blocks and error code "F3" is displayed
(see para. 6.6.13.4 Settings for system enable and fault reset).

When the switch is closed on I4 after time T1 the pump blocks and error code F4 is displayed.(see
para. 6.6.13.5 Setting low pressure detection).
The example in Figure 10, refers to a connection with voltage-free contact, using the internal voltage to control
the inputs (obviously using only useful inputs).
If a voltage rather than a contact is available, this can still be used to control the inputs: in this case terminals
+V and GND are not used and the voltage source (complying with the specifications of Table 7) is connected
to the required input. If an external voltage is used to control the inputs, all the circuitry must be protected by
.
double insulation
CAUTION: the pairs of inputs I1/I2 and I3/I4 have a pole in common for each pair.
Input wiring (J5)
input connected to voltage-free contact
contact input between pins
11 - 17
11 - 15
11 - 14
11 - 12
Table 10: Input connection
ENGLISH
Jumper
16 -18
16 -18
13 -18
13 - 8
85
input connected to
voltage signal
Signal connection pin
16-17
15-16
13-14
12-13