Solar Lattice

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

SMA SB-US-41 206

Code
206
Shown as
Grid incident
Page
52
ID
fc:sma-sb-us-41-206
IRI
https://solarlattice.org/kb/fc/sma-sb-us-41-206
Status
active
Also known as
206, SMA 206, Grid incident
Category
Inverters
Class fault drafted · lead
Production stops drafted · lead
Clears not stated

Decoded

Reports grid undervoltage, grid loss; may indicate cable Defect; look at AC cable; confirm with grid voltage measurement; do: AC connection check, grid settings check, utility company consultation.

What can be behind Grid undervoltage

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

What can be behind Grid loss

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

Defined in

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

Same condition on other equipment

ABB / FIMER
ABB / FIMER PVS-166-175-TL W005, ABB / FIMER PVS-60-TL CODE:04, ABB / FIMER PVS-60-TL W005, ABB / FIMER TRIO-20.0-27.6-TL CODE:04, ABB / FIMER UNO-DM-3.3-5.0-PLUS CODE:04, ABB / FIMER UNO-DM-3.3-5.0-PLUS W005, ABB / FIMER UNO-DM-6.0-PLUS CODE:04, ABB / FIMER UNO-DM-6.0-PLUS W005
Canadian Solar
Canadian Solar 125K-T600GL02 NO-GRID, Canadian Solar 125K-T600GL02 UN-G-V, Canadian Solar 125KTL-GS-E NO-GRID, Canadian Solar 125KTL-GS-E UN-G-V, Canadian Solar 185-255K NO-GRID, Canadian Solar 23-28KTL-CT GridF.OutLim, Canadian Solar 25-40K-T480GL01 NO-GRID, Canadian Solar 25-40K-T480GL01 UN-G-V, Canadian Solar 25-40KTL-GS-FL NO-GRID, Canadian Solar 25-40KTL-GS-FL UN-G-V, Canadian Solar 50-66K-T480GL01 NO-GRID, Canadian Solar 50-66K-T480GL01 UN-G-V, Canadian Solar 50-66KTL-GS-FL NO-GRID, Canadian Solar 50-66KTL-GS-FL UN-G-V, Canadian Solar 75-100K-T480GL02 NO-GRID, Canadian Solar 75-100K-T480GL02 UN-G-V
Fronius
Fronius Galvo 103, Fronius Galvo 107, Fronius Galvo 213, Fronius Galvo 223, Fronius Primo 103, Fronius Primo 107, Fronius Symo 103, Fronius Symo 107, Fronius Symo 213, Fronius Symo 223, Fronius Symo 233
Huawei
Huawei SUN2000-100KTL-USH0 2032, Huawei SUN2000-100KTL-USH0 2033, Huawei SUN2000-25-30KTL-US 301, Huawei SUN2000-45KTL-US-HV-D0 301
KACO new energy
KACO new energy blueplanet TL3 111, KACO new energy blueplanet TL3 112, KACO new energy blueplanet TL3 113, KACO new energy blueplanet TL3 41, KACO new energy blueplanet TL3 43, KACO new energy blueplanet TL3 45, KACO new energy blueplanet TL3 73
SMA
SMA SB-US-40 1302, SMA SB-US-40 202-206, SMA SB-US-41 1302, SMA SB-US-41 202, SMA SB-US-41 0203, SMA SBSE-US-50 1302, SMA SBSE-US-50 202, SMA SBSE-US-50 0203, SMA SBSE-US-50 206, SMA PEAK3-US 1302, SMA CORE1-US 801, SMA STP-TL-US 1302, SMA STP-TL-US 202-203, SMA STP-X-US 1302, SMA SC-CP-XT 0203, SMA SC-CP-XT 0204, SMA SC-CP-XT 801, SMA SI-US F314, SMA SI-US W315, SMA SI-US W316, SMA SI-US W317, SMA SI-US W318
Schneider Electric
Schneider Electric CL125 004, Schneider Electric CL125 005
Solis
Solis 1P-4G-US NO-GRID, Solis 1P-4G-US UN-G-V, Solis 3P-5G-US NO-GRID, Solis 3P-5G-US UN-G-V01/02, Solis RHI-1P-HV NO-GRID, Solis RHI-1P-HV UN-G-V01/02, Solis S5-GC NO-GRID, Solis S5-GC UN-G-V, Solis S6-EH1P NO-GRID, Solis S6-EH1P UN-G-V01/02, Solis S6-EH2P NO-GRID, Solis S6-EH2P UN-G-V01, Solis S6-EH2P UN-G-V02, Solis S6-EH3P30-60K NO-GRID, Solis S6-EH3P30-60K UN-G-V01, Solis S6-EH3P30-60K UN-G-V02, Solis S6-EH3P75-150K NO-GRID, Solis S6-EH3P75-150K UN-G-V01, Solis S6-EH3P75-150K UN-G-V02, Solis S6-GC NO-GRID, Solis S6-GC UN-G-V, Solis S6-GU NO-GRID, Solis S6-GU UN-G-V
Sungrow
Sungrow SG-CX-US 010, Sungrow SG-CX-US 004, Sungrow SG-CX-US 005, Sungrow SG200HX 010, Sungrow SG200HX 004, Sungrow SG200HX 005, Sungrow SG250HX 10, Sungrow SG250HX 4, Sungrow SG250HX 5, Sungrow SG350HX 010, Sungrow SG350HX 004, Sungrow SG350HX 005
Yaskawa Solectria
Yaskawa Solectria SGI-XTM AC Islanding, Yaskawa Solectria SGI-XTM Vac Low, Yaskawa Solectria SGI-XTM Vac Very Low, Yaskawa Solectria SGI-XTM Wait for Grid, Yaskawa Solectria XGI-1500-1MW WARN-10, Yaskawa Solectria XGI-1500-1MW WARN-11, Yaskawa Solectria XGI-1500-1MW WARN-9, Yaskawa Solectria XGI-1500-DCG WARN-10, Yaskawa Solectria XGI-1500-DCG WARN-11, Yaskawa Solectria XGI-1500-DCG WARN-9, Yaskawa Solectria XGI-1500 WARN-10, Yaskawa Solectria XGI-1500 WARN-11, Yaskawa Solectria XGI-1500 WARN-9

Same code in other families

Claims

defined_in

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

reports

c2 verified · fact Grid undervoltage

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

c3 drafted · lead Grid loss

indicates

c4 drafted · lead Cable Defect

Only when the AC cable is found damaged.

affects

c5 drafted · lead AC cable

has_event_class

c6 drafted · lead Fault (device stops or needs intervention)

has_production_effect

c7 drafted · lead Trip (production stops)

detected_by

c8 drafted · lead Grid voltage measurement

review note: support check: partial - Corrective measures include checking grid voltage, but detection method is not stated.

mitigated_by

c9 drafted · lead AC connection check

c10 drafted · lead Grid settings check

c11 drafted · lead Utility company consultation

When voltage is out of range due to local grid; service if voltage is normal and message persists.

applies_to

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

Data