Installing R/H-Cpus - Siemens SIMATIC S7-1500 System Manual

For a description on how to wire the power cable connector, refer to the section Connecting
load current supply (Page 268).
Note
Load current supplies can only be mounted on the left or right side outside the S7-1500R/H
redundant system. If you mount a load current supply on the right of the configured setup,
the heat development of the load current supply may make a gap to the configured setup
necessary. For additional information, refer to the relevant manuals. The number of load
current supplies that can be used is unlimited.
Uninstalling the load current supply
The load current supply is wired up.
To uninstall a load current supply, follow these steps:
1. Open the front cover.
2. Shut down the load current supply.
3. Turn off the supply voltage.
4. Disconnect the power cable connector, and remove the connector from the load current
supply.
5. Unscrew the fixing screw.
6. Swivel the load current supply out of the mounting rail.
Reference
Additional information can be found in the manuals for the load current supplies.
7.7

Installing R/H-CPUs

Introduction
CPUs in the S7-1500R/H redundant system are installed in exactly the same way as CPUs in
the S7-1500 automation system.
Note
Configuration with active backplane bus
You can find the procedure for the H-system with the active backplane bus in the Active
backplane bus (https://support.industry.siemens.com/cs/de/de/view/109778694/en)
Equipment Manual.
S7-1500R/H redundant system
System Manual, 01/2024, A5E41814787-AF
Installation
7.7 Installing R/H-CPUs
253