Siemens SINUMERIK ONE NCU 1760, Equipment Manual

Page: 58 / 162

Characteristics Version
Tightening torque 0.4 to 0.5 Nm
Max. current carrying capacity, incl. loop-through 20 A
*)
(15 A according to UL/CSA)
Max. cable length 10 m
*)
This value must be taken into consideration for the current-carrying capacity of the power supply cable.
The following cable lugs may be used:
● Crimped cable lug to DIN 46234
● Pressed cable lug to DIN 46235
● Tube-type cable lug to SN 71322
● Tube-type cable lug "Klauke R Series", UL Category ZMVV
Pin assignment
Pin Signal name Signal type Meaning
+/- P24 VI Power supply 24 V
+/- P24 VI
M M VO Ground
M M VO
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. The maximum current can be limited through the current carrying capacity of
the cable. The current carrying capacity of the cable depends, for example, on the type of cable
installation (cable duct, laying on a cable rack, etc.).
Wiring the screw terminal block
The 24 V DC load power supply required is wired to screw terminal block X124.
Connecting
7.5 Power supply
NCU 1760
58
Equipment Manual, 02/2020, A5E45627861B AB