Requirements For The Power Supply - Siemens SINUMERIK 840D sl Manual

Connecting
7.4 Power supply
Position of power supply interface
Figure 7-3
7.4.2

Requirements for the power supply

External 24 V power supply
Power is supplied to the NCU by an external 24 V power supply (e.g.: SITOP). The following
power consumption values for an NCU provide a configuration basis for calculating the 24 V
DC power supply.
Table 7-3
NCU 710.3 PN / NCU 710.3B PN
NCU 720.3 PN / NCU 730.3 PN
NCU 720.3B PN
NCU 730.3B PN (PLC 317)
NCU 730.3B PN (PLC 319)
NCU only (processor, memory, etc.)
1)
NCU with full load at all outputs (digital outputs, USB, DRIVE-CLiQ, PROFIBUS DP etc.)
2)
50
Power supply interface
Input voltage specification
Typ. current consumption
0.9 A
1.9 A
0.94 A
1 A
1.25 A
Max. power consumption
1)
11.7 A
15.6 A
14.6 A
14.6 A
15 A
NCU 7x0.3 PN, NCU 7x0.3B PN
Manual, 06/2014, 6FC5397-1EP40-5BA1
2)