Power Supply - Siemens SIMATIC NET Operating Instructions Manual

5.3

Power supply

Information on the power supply
● The "L1" and "L2" LEDs indicate the current range of the power supply, see the section
● The power supply is connected using a 4-pin plug-in terminal block (spring-loaded
● The power supply can be connected redundantly.
● The two chassis grounds M1 and M2 are connected.
● To wire up the power connector, use a copper cable of category 18-12 AWG or cable with
Incorrect power supply
The power of all connected power supply units must total the equivalent of a power source
with limited power (LPS limited power source).
If the device is connected to a redundant power supply (two separate power supplies), both
power supplies must meet these requirements.
Never operate the device with AC voltage or DC voltage higher than 60 V DC.
Position and assignment
Figure 5-1
Contact
L1
M1
M2
L2
SCALANCE XC100-4OBR
Operating Instructions, 10/2013, C79000-G8976-C297-02
"LEDs "L1" and "L2" (Page 30)".
terminal). The terminal block ships with the device.
a cross-section of 0.75 to 2.5 mm².
WARNING
Position of the power supply on the SCALANCE XC100-4OBR and the assignment of
the terminal block
Assignment
L1+ 12 VDC/24 VDC/48 VDC
Ground
Ground
L2+ 12 VDC/24 VDC/48 VDC
Connection
5.3 Power supply
39