Calculation Of The 24 Vdc Power Requirement Example - Siemens SINUMERIK 840D sl Manual

Component
Double Motor Modules
2 x 3 A (+ 2 x DRIVE-CLiQ; + 2 x brake)
2 x 5 A (+ 2 x DRIVE-CLiQ; + 2 x brake)
2 x 9 A (+ 2 x DRIVE-CLiQ; + 2 x brake)
2 x 18 A (+ 2 x DRIVE-CLiQ; + 2 x brake)
Sensor Modules Cabinet
SMC 10
SMC 20
SMC 30
Sensor Modules External
SME 20
SME 25
SME 120
SME 125
Supplementary system components
Braking Module
The details apply to Motor Modules / Line Modules with internal/external heat dissipation.
5.6.4

Calculation of the 24 VDC Power Requirement Example

Table 5-21
Component
NCU7x0
8 digital outputs
Active Line Module 36 kW
Motor Module 18 A
Motor Module 30 A
SMC
Brake
Total:
The following conditions should be considered for the configuring:
● The line infeed of the power supply devices must be tapped in front of the line filter of the
● The line connection of the power supply should be made directly and without additional
● The dimensioning of the output rated current of the power supply is determined by the
Guide for the SINUMERIK 840D sl machine configuring
Manual, 07/2006 Edition, 6FC5397-6CP10-0BA0
Example of 24 V DC current requirements
Line Module.
switched feeders.
load of the connected consumers.
Number Current consumption
[A]
1 2,00
8 0,01
1 1,50
2 0,85
3 0,90
5 0,25
5 1,10
Connection of the Components
5.6 Electronics Power Supply
Typical current consumption [A
1,15
1,15
1,15
1,3
0,25
0,25
0,33
0,19
0,19
0,24
0,24
0,5
Total current consumption [A]
]
DC
2,00
0,08
1,50
1,70
2,70
1,25
5,50
14,73
5-45