SMA sunny boy 2000hf-us, Руководство по установке

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Troubleshooting SMA America, LLC
90 SB20_25_30HFUS-eng-IUS113711 Installation Guide
13. Start operating the inverter without the SMA Plug-in Grounding, as described in section
7 ”Commissioning” (page 63).
☑ The inverter will now check, whether there is still a ground fault.
– If the ground fault has been removed, the display shows < Insulation resist > as soon as
the initial voltage has been reached.
– If the ground fault still exists, the error message < Ground fuse fault > will remain on the
display. In that case, repeat steps 3 and 4.
14. Disconnect the Sunny Boy from voltage sources (see section 8.1 ”Disconnect the Sunny Boy
from Voltage Sources” (page 65)).
15. Open the SMA DC Disconnect (see section 8.2 ”Open SMA DC Disconnect” (page 66)).
16. Check the SMA Plug-in Grounding fuse and, if necessary, replace it as described in section
9.3.1 ”Exchanging SMA Plug-in Grounding fuse” (page 74).
17. Connect the fully operative SMA Plug-in Grounding to the inverter as described in section
6.6 ”Installation of the SMA Plug-in Grounding” (page 54).
18. Close the SMA DC-Disconnect (see section 8.3 ”Closing the SMA DC-Disconnect” (page 67)).
19. Start up the inverter again as described in section 7 ”Commissioning” (page 63) . In this
process, the inverter checks whether the configured grounding type corresponds to the
grounding type of the installed SMA Plug-in Grounding.
☑ After having been re-started, the inverter will start feeding into the grid again.
11.3 Correct the Grounding Type
Proceed as follows to remove the error < Wrong earthing type - check earthing set >:
1. Disconnect the Sunny Boy from voltage sources (see section 8.1 ”Disconnect the Sunny Boy
from Voltage Sources” (page 65)).
2. Open the SMA DC Disconnect (see section 8.2 ”Open SMA DC Disconnect” (page 66)).
3. Connect a fully operative SMA Plug-in Grounding
with correct polarity to the inverter as
described in section 6.6 ”Installation of the SMA Plug-in Grounding” (page 54).
4. Close the SMA DC-Disconnect (see section 8.3 ”Closing the SMA DC-Disconnect” (page 67))
5. Start up the inverter again as described in section 7 ”Commissioning” (page 63).
In this process, the inverter will check whether the grounding type corresponds to the configured
or learned grounding type.
☑ The error has been corrected and the inverter is feeding into the grid again.