Siemens SIMATIC S7-1500 System Manual page 84

Wiring
5.8 Connecting the CPU/interface module to the load current supply
Connecting the CPU/interface m odule to a load current supply
Watch video sequence
(https://support.industry.siemens.com/cs/media/78027451_S7_1500_gs_wire_web_en/start.h
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To connect the supply voltage, follow these steps:
1. Open the front flap of the load current supply and pull the 24 V DC output terminal
downwards.
2. Connect the 24 V DC output terminal to the wires of the 4-pole connection plug of the
CPU/interface module. The cable cross-section can be 0.5 mm² to 2.5 mm².
3. Connecting the load current supply to the CPU/interface module.
84
Automation system
System Manual, 09/2016, A5E03461182-AD