Maintenance and service
7.6 Replace modules without the function "Change During Operation"
ET 200M
108 Operating Instructions, 04/2022, EWA-4NEB7806006-09
Response of the ET 200M after module replacement
If a fault is present after module replacement, you can use STEP 7 to evaluate the cause of
the fault in the corresponding diagnostic data record.
7.6 Replace modules without the function "Change During
Operation"
Removing a Module
Proceed as follows when removing modules without "Module change during operation":
1. Switch off the load voltage to the module.
2. Switch off power supply for the IM 153-x.
3. Remove the labeling strip from the module.
4. Open the front door.
5. Unlock the front connector and pull it off the module:
– With 20-pin front connector: To do this, use one hand to press the unlocking button
down (5) and use your other hand to remove the front connector via the gripping
surface (5a).
– With 40-pin front connector: Remove the fixing screw from the middle of the front
connector. Pull the front connector out while holding the grips.
6. Undo the module fixing screw(s).
7. Swing the module up and off the rail.
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