ENGLISH
39
2.3 Electrical
connections
for auxiliary inputs and outputs
The pump has a connector for configurable user inputs and outputs.
Figure 4
The output is made from a relay (clean contact), with the following electrical characteristics.
Characteristics of the output contacts
Type of contact
NO (normally open)
Max. bearable voltage [V]
24Vac / 24Vdc
Max. bearable current [A]
2A -> resistive load
1 A -> inductive load
Max. bearable power
2.5VA / 2W
Table 2 - Output contact
The functions that can be activated on the output contact are described in paragraph 6.2.6.2.
The following inputs are available (see also par. 6.2.6.1):
1. A digital input, with clean contact (maximum voltage 5Vdc, maximum current 1mA); the closed contact means
"run"
, the open contact means
"stop"
.
2. An input for an external analog signal, configurable as 0-10V or 4-20 mA .
The following figure shows the relationship between the analog signal on input and the setpoint
SP
to be activated.
See the following parts of this manual for further information on operation.
Figure 5
The inputs are not opto-isolated.
To connect to the input and output connector, use only the cable kit with code DAB 60172444. The
details of the connector and of the connection are included in the kit.
