Opening and Closing SMA Technologie AG
50 SB40TL_50TL-IEN081211 Installation Guide
4. Loosen all six non-removable lid screws and
remove the lid.
5. Use a suitable measuring device on the AC
terminal to ensure that there is no voltage present
at PE. The maximum diameter of the test tip may
not exceed 2 mm.
If voltage is found, check the installation!
6. Ensure there is no voltage present at the fault
signaling contact to PE on all test contacts of the
plug.
If voltage is found, check the installation!
7. Disconnect the PV generator by removing all DC
plug connectors from the Sunny Boy.
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