Siemens NCU 7x0.3 PN Series - 7.4 Power supply

Connecting
7.4 Power supply
NCU 7x0.3 PN
Manual, 09/2011, 6FC5397-1EP40-0BA0
45
7.4 Power supply
7.4.1 Application
This interface is provided exclusively for connection of the external power supply.
Note
When using external power supplies (e.g. SITOP), the ground potential must be connected
with the protective ground terminal (PELV).
Pin assignment
Table 7- 2 Power supply X124
Pin Signal name Signal type Meaning
+ P24 VI
+ P24 VI
Power supply 24 V
M M VO
M M VO
Ground
Signal type: VI = voltage input;VO = voltage output
Note
The two "+" or "M" terminals are jumpered in the connector. This ensures the 24 V voltage is
looped through.