c1 drafted · lead SBxx-US-1XP-40-BA-en-13
- SBxx-US-1XP-40-BA-en-13
sec=h209h=21872bbd9f73 - SBxx-US-1XP-40-BA-en-13
sec=h210h=dba4882bde4c
Fault codes › SMA › Sunny Boy 3.0-7.7-US (SBx.x-1SP/1TP-US-40)
SMA SB-US-40 3701
Decoded
Reports ground fault alarm or trip; look at PV array; confirm with insulation resistance testing, open-circuit voltage measurement, grid voltage measurement, visual inspection, infrared thermography; do: grounding conductor check, DC wiring check.
What can be behind Ground fault alarm or trip
Failure modes that present as the reported condition, and the tests that tell them apart.
- Backsheet Cracking drafted · lead
- Cable Defect verified · fact
- Connector Defect drafted · lead
- Glass Breakage drafted · lead
- Grounding fuse failure verified · fact
- Loss of electrical insulation drafted · lead
Defined in
- SBxx-US-1XP-40-BA-en-13 — SMA · page 50 drafted · lead
sec=h209h=21872bbd9f73sec=h210h=dba4882bde4c
The manufacturer's own cause and corrective text is not reproduced here.
Same condition on other equipment
Same code in other families
- SMA SB-US-41 3701
- SMA SBSE-US-50 3701
- SMA PEAK3-US 3701
- SMA CORE1-US 3701
- SMA STP-TL-US 3701
- SMA STP-X-US 3701
Claims
defined_in
reports
c2 drafted · lead Ground fault alarm or trip
- STP33-62-US-41-BA-en-13
tbl=18.r1h=a1fc2477c9ae - STP33-62-US-41 ops manual
tbl=7.r1h=a1fc2477c9ae - STP33-62-US-41-BA-en-14
tbl=19.r1h=3287c94f0288 - SBxx-US-1XP-40-BA-en-13
sec=h210h=dba4882bde4c - SBxx-US-1XP-41-BA-en-12
sec=h285h=9e1658bb50c5
affects
- STP33-62-US-41-BA-en-13
tbl=18.r1h=a1fc2477c9ae - STP33-62-US-41 ops manual
tbl=7.r1h=a1fc2477c9ae - STP33-62-US-41-BA-en-14
tbl=19.r1h=3287c94f0288 - SBxx-US-1XP-40-BA-en-13
sec=h210h=dba4882bde4c
detected_by
c4 drafted · lead Insulation resistance testing
- STPxx-US-50-BE-en-14
sec=11.1.20h=1fc05755d2d4 - STPxx-US-50-BE-en-14
sec=h467h=10a07fe57d31
c5 drafted · lead Open-circuit voltage measurement
- STPxx-US-50-BE-en-14
sec=11.1.20h=1fc05755d2d4 - STPxx-US-50-BE-en-14
sec=h467h=10a07fe57d31
c6 drafted · lead Grid voltage measurement
- STPxx-US-50-BE-en-14
sec=11.1.20h=1fc05755d2d4 - STPxx-US-50-BE-en-14
sec=h467h=10a07fe57d31
c7 drafted · lead Visual inspection
- STPxx-US-50-BE-en-14
sec=11.1.20h=1fc05755d2d4 - STPxx-US-50-BE-en-14
sec=h467h=10a07fe57d31
c8 drafted · lead Infrared thermography
- STPxx-US-50-BE-en-14
sec=11.1.20h=1fc05755d2d4 - STPxx-US-50-BE-en-14
sec=h467h=10a07fe57d31
review note: support check: partial - IR camera is mentioned only as a tip for support, not as a definite detection method.
mitigated_by
c9 drafted · lead Grounding conductor check
- STPxx-US-50-BE-en-14
sec=11.1.20h=1fc05755d2d4 - STPxx-US-50-BE-en-14
sec=h467h=10a07fe57d31
c10 drafted · lead DC wiring check
- STP33-62-US-41-BA-en-14
tbl=19.r1h=3287c94f0288 - SBxx-US-1XP-41-BA-en-12
sec=h286h=3450f514b95f - SBSExx-US-50-BE-en-11
sec=h573h=0818fdbe4234
has_event_class
c11 drafted · lead Fault (device stops or needs intervention)
- STPxx-US-50-BE-en-14
sec=11.1.20h=1fc05755d2d4 - STPxx-US-50-BE-en-14
sec=h466h=ceee8640eb7c
review note: support check: partial - Describes an insulation error with auto reconnect; fault class is only loosely implied, not stated.
has_production_effect
c12 drafted · lead Trip (production stops)
Momentary insulation error; inverter disconnects and reconnects.
- STPxx-US-50-BE-en-14
sec=11.1.20h=1fc05755d2d4 - STPxx-US-50-BE-en-14
sec=h466h=ceee8640eb7c
review note: support check: partial - The inverter reconnects implying it disconnected, but disconnecting is not explicitly stated.
has_recovery
c13 drafted · lead Auto-reset (clears by itself)
Reconnects once values return to permissible range.
- STPxx-US-50-BE-en-14
sec=11.1.20h=1fc05755d2d4 - STPxx-US-50-BE-en-14
sec=h466h=ceee8640eb7c
applies_to
c14 drafted · lead Sunny Boy 3.0-7.7-US-40 proposed
- SBxx-US-1XP-40-BA-en-13
sec=h209h=21872bbd9f73 - SBxx-US-1XP-40-BA-en-13
sec=h210h=dba4882bde4c