Beckhoff CX9000 Manual do Utilizador descarregar pdf (Página 18)

Product overview

16 Embedded PC

Connections

The system is supplied with power via the integrated power supply. This is wired as follows:

The basic module is powered via the upper connectors with 24 V DC. The terminal bus can be supplied via the lower

connections.

UL requirements

Danger

For the compliance of the UL requirements the CX-Controllers should only be supplied

• by a 24 V

supply voltage, supplied by an isolating source and protected by means of a

fuse (in accordance with UL248), rated maximum 4 Amp.

• by a 24 V

power source, that has to satisfy NEC class 2.

A NEC class 2 power supply shall not be connected in series or parallel with another

(class 2) power source!

These UL requirements are valid for all supply voltages of the CX-Controllers!

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Beckhoff CX9000 Manual do Utilizador Página 18