Connecting The Power Supply - Siemens Sinumerik 802D sl Instruction Manual

7.8

Connecting the power supply

Connect the required 24 V DC load power supply to the following connectors:
S to screw-terminal block X40 of the CNC operator panel
S to screw-terminal block X1 of the PP72/48 I/O module
Features of the load power supply
Danger
!
The 24 V DC protective extra-low voltage must be generated as a protective extra-low
voltage with safe electrical isolation (to IEC 204-1, Section 6.4, PELV) and grounded by the
user (provide a PELV M signal connection to the central grounding point of the system).
Table 7-2
Voltage range mean value
Ripple
Non-periodic overvoltage
Rated current consumption
S
S
Starting current
S
S
Power consumption
S
S
Table 7-3
Note
Make sure that the interconnecting cable between the power supply and the load power
supply connection does not exceed a maximum length of 10 m (with PP72/48 I/O module
only).
Siemens Automation Parts
SINUMERIK 802D sl Instruction Manual (BA), 05/2005 Edition
6FC5 397-0CP10-1BA0
Electrical parameters of the load power supply for the CNC operator panel (X40) and for
the PP72/48 I/O module (X1)
Parameter
CNC operator panel
PP72/48 I/O module
CNC operator panel
PP72/48 I/O module
CNC operator panel
PP72/48 I/O module
Pin assignment of the screw-terminal blocks X40 (on the PCU) and X1 (on the I/O module)
Terminal
1
2
3
7.8 Connecting the power supply
Values
20.4...28.8 V
3.6 Vss
35 V
typically 1 A
–
2.6A
–
max. 50 W
max. 11 W
Signal
P24
M
PE
Connecting
Conditions
500 ms duration
50 s recovery time
Description
24 V DC
Ground (GND)
Protective earth
7-61