Assembling the M7-400
8-49
S7-400 and M7-400 Programmable Controllers, Installation Manual
C79000-G7076-C424-01
8.8.2 Replacing the CPU or Expansion Modules of a Module
Assembly
Removing a Module
To remove a module from a module assembly, follow the steps outlined below:
1. Switch the CPU and all function modules in your M7-400 to STOP with the
mode switch.
2. Switch off the load voltage for the modules.
3. Disconnect the automation computer from the supply.
4. Remove the covers from the modules, if applicable. Figure 8-22 shows how to
remove the cover.
– Press the locking lever down (1).
– Swing the cover forward and off (2).
(1)
(2)
Figure 8-22 Removing the Cover
5. Disconnect the interface connections at the module assembly, including all
interface submodules.
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