Troubleshooting SMA Solar Technology AG
196 SI5048-TEN093630 Technical Description
20.8.8 AUX Category
F743 3 Internal device communication BFR-DSP missing
W744 1 internal device communication BFR-DSP on slave 1 missing
W745 1 internal device communication BFR-DSP on slave 2 missing
W746 1 internal device communication BFR-DSP on slave 3 missing
W747 4 short circuit or cable break on transformer temperature sensor slave 1
W748 1 short circuit or cable break on transformer temperature sensor slave 2
W749 1 short circuit or cable break on transformer temperature sensor slave 3
W750 1 short circuit or cable break on heat sink temperature sensor slave 1
W751 1 short circuit or cable break on heat sink temperature sensor slave 2
W752 1 short circuit or cable break on heat sink temperature sensor slave 3
F753 1 Invalid system time
W754 2 Communication with Multicluster Box interrupted
W755 1 Battery Preservation Mode 1
W756 1 Battery Preservation Mode 2
W757 1 Battery Preservation Mode 3
W758 1 No output voltage measured
W759 1 No output voltage measured slave 1
W760 1 No output voltage measured slave 2
W761 1 No output voltage measured slave 3
F781 4 Error at a slave
F782 4 Error in AI system
Display no. Level Description
F801 4 Plausibility check failed
W804 1 Grid operation not possible
W805 1 Generator operation not possible
F806 4 Multicluster Box settings do not correspond to the software settings.
W807 1 No valid grid voltage with the requested grid operation
W808 1 Fault in contactor Q4
F809 4 Fault in contactor Q10 (loadshedding)
F810 4 Error in 15 V supply of the Multicluster Box
F811 4 Error in 24 V supply of the Multicluster Box
F815 4 Fault in contactor Q5
F816 4 Fault in contactor Q7
F817 4 Fault in contactor Q9
Display no. Level Description
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