Power Supply For Cnc (X1) - Siemens SINUMERIK 802C base line Technical Manual

2.4

Power Supply for CNC (X1)

Screw-terminal block
Characteristics of the load power supply
Pin assignment on the CNC side
SINUMERIK 802C base line
Start-Up
The 24 V DC load power supply unit required for supplying CNC is connected
to screw- type terminal block X1.
The 24 V DC voltage must be generated as a functional extra-low voltage with
safe electrical Isolation (to IEC 204–1, Section 6.4, PELV).
Table 2–17 Electrical parameters of the load power supply
Parameter
Voltage range mean value
Ripple
Non-periodic overvoltage
Rated current consumption
Starting current
Table 2–18 Pin assignment of screw terminal block X1
Terminal
1
2
3
Min. Max.
20.4 28.8
3.6
35
1.5
4
PE
M
P24
Installing the Control System
Units Conditions
V
Vss
V 500 ms cont.
50 s recovery
A
A
PE
Ground
DC 24 V
2-21