Siemens EK 730 Series Betriebsanleitung PDF herunterladen (Seite 25)

Connection

5.2 Power supply

SCALANCE W770/W730

Operating Instructions, 11/2014, C79000-G8976-C325-04

5.2

Power supply

Note

Galvanic isolation of the power supply unit

To ensure dielectric strength according to IEEE 802.3, the supplying 24 V power supply unit

must be galvanically isolated with a dielectric strength of 1500 VAC. The galvanic isolation

must also not be bridged by other devices connected to the same power s

upply unit.

SCALANCE W774/W734 RJ-45

For the power supply, there are two options with the SCALANCE W774/W734:

● Direct feed in via the four-pin socket (position

①)

● Power over Ethernet via the RJ-45 Ethernet interface P2 (position

②). The other

Ethernet interface P1 is not capable of PoE.

The four-pin connecting socket has the following pin assignment:

Assignment

L1+

24 VDC

M1 Ground

Ground

L2+

24 VDC

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Siemens EK 730 Series Betriebsanleitung Seite 25