SMA Plug-in Grounding - Manual (Page 37)

SMA Solar Technology AG Parameters and Error Messages
Installation Guide Erdung_HF-IXX105020 37
6.3 Correct Error
6.3.1 Safety
6.3.2 Correct Gorund Fuse Fault
Proceed as follows to correct the error < Ground fuse fault - check ground fuse >:
1. Disconnect the inverter on the AC and DC sides as described in the inverter's installation guide.
2. Make a note of the type of generator grounding (" − " or " + ") and remove the SMA Plug-in
Grounding by pulling downwards.
3. Check the PV generator for a ground fault as described in the inverter's installation guide, and
remove, if applicable.
4. Start operating the inverter without the SMA Plug-in Grounding, as described in the inverter
installation guide.
☑ The inverter will now check, whether there is still a ground fault.
– If the ground fault has been removed, the error message display should change from
< Ground fuse fault > to < Insulation resist. > as soon as the initial voltage has reached
220 V.
– If the ground fault still exists, the error message < Ground fuse fault > will remain visible
on the display. In that case, repeat steps 3 and 4.
5. Disconnect the inverter on the AC and DC sides as described in the inverter's installation guide.
6. Check the SMA Plug-in Grounding fuse and, if necessary, replace it as described in section
5 ”Inspecting and Replacing the fuse of the SMA Plug-in Grounding” (page 30).
7. Connect the functioning SMA Plug-in Grounding to the inverter as described in section
4 ”Installing the SMA Plug-in Grounding” (page 28).
8. Start up the inverter again as described in the inverter's installation guide. 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.
DANGER!
Risk of lethal electric shock.
The inverter operates at high voltages.
• Disconnect the inverter on the AC and DC sides as described in the inverter's
installation guide.