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7.2
Power supply
Connecting the power supply
The power supply is connected using a 3- or 4-pin plug-in terminal block. Usable cable cross-
section 0.25 to 2.5 mm
The power supply is non-floating. The signal cables of the Ethernet TP ports are floating.
Note
Removing or inserting the power supply with the power on is not permitted.
Coding
With the SCALANCE X204RNA EEC the supplied plugs and the socket on the device for the power
supply match in their coding.
The plug and socket for the signaling contact are coded differently from the connection of the
power supply. The plugs for power supply and signaling contact cannot therefore be
interchanged.
You can use non-coded plugs in coded sockets and coded plugs in non-coded sockets.
Pin assignment
Pin number
Pin assignment of the SCALANCE X204RNA (PRP
and HSR)
Pin 1
L1 +24 VDC
Pin 2
M1
Pin 3
M2
Pin 4
L2 +24 VDC
Note
Since the SCALANCE X204RNA EEC does not have a redundant power supply, connect the power
supply between L1 and N1.
SCALANCE X-200RNA
Operating Instructions, 04/2022, C79000-G8976-C342-07
. Permitted tightening torque 0.57 - 0.79 Nm (5 - 7 in.lb.).
2
Pin assignment of the SCALANCE X204RNA EEC
(PRP and HSR and PRP/HSR)
PE
Coding of the socket
L1 +24 V ... +250 VDC
L1 100 V ... 240 VAC
Coding of the plug
N1
Coding of the socket
-
Connecting up
7.2 Power supply
73
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