Siemens SINUMERIK 840D sl Equipment Manual page 52

Connecting
7.5 Power supply
Pin assignment
Table 7-2
Pin
+
+
M
M
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.
Position of power supply interface
Figure 7-3
52
Power supply X124
Signal name Signal type
P24 VI
P24 VI
M VO
M VO
Power supply interface
Meaning
Power supply 24 V
Ground
Equipment Manual, 10/2020, 6FC5397-1EP40-6BA1
NCU 7x0.3B PN