Siemens SIMATIC ET 200M Manual page 151

Maintenance
Removing the Power Supply Module
To remove the power supply module, proceed as follows:
1. Operate the supply isolating switch in order to de-energize the power supply
module.
2. Remove the cover.
3. Disconnect all the wiring.
4. Undo the fixing screws of the power supply module.
5. Swing the power supply module out.
Installing the New Power Supply Module
To install the new power supply module, proceed as follows:
1. Check the setting of the voltage selector switch.
2. Hook the new power supply module of the same type onto the rail and swing it
down into place.
3. Screw the power supply module on securely.
4. Wire the power supply module.
5. Connect the power supply module to the line voltage.
6. Close the cover.
Response of the ET 200M After Module Replacement
If there is an error after the power supply modules have been replaced, you can
have the cause displayed in the diagnostic buffer with STEP 5 or with STEP 7.
7-2
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Distributed I/O Device ET 200M
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