Installing and Removing
3-4
FM 353 Stepper Drive Positioning Module
6ES7 353-1AH01-8BG0
3.2 Removing the FM 353
Rules
No particular protective measures (EGB Guidelines) are necessary for the removal
of the FM 353.
!
Warning
Remove the FM 353 only after all power to the S7-300 has been turned OFF.
Tools required
A 4.5 mm (.18 inch) screwdriver.
Procedure
To remove the FM 353:
1. Open the front doors. If necessary, remove the labeling strips.
2. Detach the power-supply connections from the terminal block.
3. Detach the sub-D plug from the drive unit.
4. Release the protective device on the front connector and unplug it.
5. Loosen the fastening screws and swing the module up and out.
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