Wiring
8.7 Connecting the CPU to the load power supply
S7-1500R/H redundant system
System Manual, 01/2024, A5E41814787-AF
269
8. Retighten the screw (Figure 6). This effects a strain relief on the lines.
Figure 8-5 Connecting the supply voltage to a system power supply/load current supply (2)
9. Insert the power connector into the module, until the latch engages.
Reference
You can find more information on connecting the 24 V DC output voltage of the load current
supply in the manuals for the relevant modules.
8.7 Connecting the CPU to the load power supply
Introduction
The load current supply is fitted with a plug-in 24 V DC output terminal (behind the front
cover at the bottom). You connect the cables for the supply voltage to the CPU at this
terminal.
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 266).
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)
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