Tecfluid XT5 Manual do Utilizador descarregar pdf (Página 8)

2.3 Pulse output connection

Terminal

E Emitter.

C Collector.

2.4 Connection examples

The two usual ways to connect the alarm outputs are NPN or PNP modes, depending on if

the load is connected to the positive or negative terminal.

In the following figures, an example of connection for the alarm 2 in NPN and PNP mode can

be seen.

The pulse output is opto-isolated. The terminals are the collector and emitter of an NPN

bipolar transistor. Optionally this output can be supplied for AC loads (see 9.3).

In the case of using inductive loads, in order to protect the output transistor, the use of

free wheeling diodes is required.

Co i l

XT5

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Tecfluid XT5 Manual do Utilizador Página 8