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Fault codes › SMA › Sunny Boy 3.0-7.7-US (SBx.x-1SP-US-41)

SMA SB-US-41 0205

Code: 0205
Shown as: Grid incident
Page: 52
ID: fc:sma-sb-us-41-205
IRI: https://solarlattice.org/kb/fc/sma-sb-us-41-205
Status: active
Also known as: 0205, 205, SMA 0205, Grid incident
Category: Inverters

Class fault drafted · lead

Production stops drafted · lead

Clears by itself drafted · lead

Decoded

Reports grid synchronization failure, grid frequency out of range; look at AC cable; confirm with grid voltage measurement; do: AC connection check, grid settings check, utility company consultation.

What can be behind Grid synchronization failure

Failure modes that present as the reported condition, and the tests that tell them apart.

What can be behind Grid frequency out of range

Failure modes that present as the reported condition, and the tests that tell them apart.

Defined in

SBxx-US-1XP-41-BA-en-12 — SMA · page 52 drafted · lead
- sec=6.2.7 h=f09c6412bcf1
- sec=h212 h=354164b2f12c

The manufacturer's own cause and corrective text is not reproduced here.

Same condition on other equipment

CPS: CPS SCA25KTL-208 GridF.OutLim, CPS SCA25KTL-480 GridF.OutLim, CPS SCA36KTL GridF.OutLim, CPS SCA50-100K-T Protect0690, CPS SCA50-60KTL GridF.OutLim, CPS SCH100-125KTL GridF.OutLim, CPS SCH125KTL-AIO GridF.OutLim, CPS SCH200-250K-T GridF.OutLim, CPS SCH275KTL GridF.OutLim, CPS SCH350KTL GridF.OutLim
Canadian Solar: Canadian Solar 23-28KTL-CT GridF.OutLim
Fronius: Fronius Galvo 454, Fronius Primo 454, Fronius Symo 454
Huawei: Huawei SUN2000-25-30KTL-US 305, Huawei SUN2000-45KTL-US-HV-D0 305
KACO new energy: KACO new energy blueplanet TL3 180
SMA: SMA SB-US-40 501, SMA SB-US-40 701, SMA SB-US-41 501, SMA SB-US-41 701, SMA SBSE-US-50 501, SMA SBSE-US-50 701, SMA PEAK3-US 501, SMA PEAK3-US 701, SMA CORE1-US 501, SMA STP-TL-US 501, SMA STP-TL-US 701, SMA STP-X-US 501, SMA STP-X-US 701, SMA SC-CP-XT 0205, SMA SC-CP-XT 6425
Schneider Electric: Schneider Electric CL125 054
Solis: Solis S6-EH2P LmtByFreq, Solis S6-EH3P30-60K LmtByFreq, Solis S6-EH3P75-150K LmtByFreq, Solis S6-GC G-F-FLU, Solis S6-GU G-F-FLU
Sungrow: Sungrow SG-CX-US 013, Sungrow SG200HX 013, Sungrow SG250HX 13, Sungrow SG350HX 013
Yaskawa Solectria: Yaskawa Solectria PVI-14-20TL GridF.OutLim, Yaskawa Solectria PVI-25TL-R GridF.OutLim, Yaskawa Solectria PVI-TL GridF.OutLim, Yaskawa Solectria SGI-XTM Flux Error, Yaskawa Solectria XGI-1500-1MW WARN-2, Yaskawa Solectria XGI-1500-DCG WARN-2, Yaskawa Solectria XGI-1500 WARN-2

Same code in other families

SMA SC-CP-XT 0205

Claims

`defined_in`

c1 drafted · lead SBxx-US-1XP-41-BA-en-12

SBxx-US-1XP-41-BA-en-12 sec=6.2.7 h=f09c6412bcf1
SBxx-US-1XP-41-BA-en-12 sec=h212 h=354164b2f12c

`reports`

c2 drafted · lead Grid synchronization failure

SCCPXT-E7-WA-en-37 tbl=32.r5 h=34694c80e731

c3 drafted · lead Grid frequency out of range

SCCPXT-E7-WA-en-37 tbl=32.r5 h=34694c80e731

review note: support check: partial - The passage mentions a not-permitted grid frequency change, which is not exactly frequency out of range.

`affects`

c4 drafted · lead AC cable

SBxx-US-1XP-41-BA-en-12 sec=h213 h=5a2fda46a26b

review note: support check: partial - The passage with the AC cable explanation is cited for 0205, but it is a different message's explanation with no…

`detected_by`

c5 drafted · lead Grid voltage measurement

SBxx-US-1XP-41-BA-en-12 sec=h214 h=5027c6815068

review note: support check: partial - Grid voltage checks are described, but they are not tied to 0205 detection by voltage measurement.

`mitigated_by`

c6 verified · fact AC connection check

SBxx-US-1XP-41-BA-en-12 sec=h214 h=5027c6815068

verified by: review-workflowverified on: 2026-10-23

c7 drafted · lead Grid settings check

SBxx-US-1XP-41-BA-en-12 sec=h214 h=5027c6815068

c8 drafted · lead Utility company consultation

SBxx-US-1XP-41-BA-en-12 sec=h214 h=5027c6815068

`has_event_class`

c9 drafted · lead Fault (device stops or needs intervention)

SBxx-US-1XP-41-BA-en-12 sec=h213 h=5a2fda46a26b

review note: support check: partial - The inverter disconnects, but the passage does not classify it as a fault.

`has_production_effect`

c10 drafted · lead Trip (production stops)

SBxx-US-1XP-41-BA-en-12 sec=h213 h=5a2fda46a26b

`has_recovery`

c11 drafted · lead Auto-reset (clears by itself)

Service only if message persists with grid in permissible range.

SCCPXT-E7-WA-en-37 tbl=32.r5 h=34694c80e731
SCCPXT-E7-WA-en-37 sec=5.4.3 h=162f559707eb

`applies_to`

c12 drafted · lead Sunny Boy 3.0-7.7-US-41 proposed

SBxx-US-1XP-41-BA-en-12 sec=6.2.7 h=f09c6412bcf1
SBxx-US-1XP-41-BA-en-12 sec=h212 h=354164b2f12c

Data