Siemens SIMATIC S7-1500 System Manual page 179

Requirements
• Only wire the cable connector when the supply voltage is turned off.
• The connector for connecting the supply voltage to the CPU is already fitted. You can find
more information in the section Connecting the supply voltage (Page 175).
Tools required
3 to 3.5 mm screwdriver
Connecting the CPU to a load current supply
Watch the video sequence (https://support.industry.siemens.com/cs/ww/en/view/78027451)
To connect the cables for the supply voltage, follow these steps:
1. Open the front cover of the load current supply. Pull the 24 V DC output terminal down
and off.
2. Wire the 24 V DC output terminal to the wires of the CPU 4-pin connector.
Figure
S7-1500R/H redundant system
System Manual, 11/2022, A5E41814787-AD
7.7 Connecting the CPU to the load power supply
Wiring
179