Rockwell Automation Publication 1756-UM022D-EN-P - May 2017 45
Install the Controller Chapter 2
2. Slide the ESM into the chassis until it snaps into place.
The ESM begins charging after installation. Charging status is indicated by one
of these status messages:
•ESM Charging
•CHRG
After you install the ESM, it can take up to 15 seconds for the charging status
messages to display.
ATTENTION: To avoid potential damage to the product when inserting the
ESM, align the ESM in the track and slide forward with minimal force until
the ESM snaps into place.
IMPORTANT Allow the ESM to finish charging before removing power from the controller.
To verify that the ESM is fully charged, check the status display to confirm
that messages ‘CHRG’ or ‘ESM Charging’ are no longer indicated.
TIP Check the WallClockTime object attributes after installing an ESM to verify
that time of the controller is correct.
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