Siemens SINUMERIK ONE NCU 1750 Equipment Manual page 64

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Connecting
8.5 Power supply
Characteristics
Tightening torque
Max. current carrying capacity, incl. loop-through
Max. cable length
*)
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
+/-
+/-
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. 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.
64
Signal name
Signal type
P24
VI
P24
VI
M
VO
M
VO
Version
0.4 to 0.5 Nm
20 A
(15 A according to UL/CSA)
*)
10 m
Meaning
Power supply 24 V
Ground
Equipment Manual, 01/2022, A5E45627807B AE
NCU 1750

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