Fault codes › SMA › Sunny Tripower CORE1-US (STP 33/50/62-US-41)

SMA CORE1-US 301

Code: 301
Shown as: Grid incident
Page: 47
ID: fc:sma-stp-core1-us-301
IRI: https://solarlattice.org/kb/fc/sma-stp-core1-us-301
Status: active
Also known as: 301, SMA 301, Grid incident
Category: Inverters

Class fault drafted · lead

Production stops drafted · lead

Clears not stated

Decoded

Reports grid overvoltage; confirm with grid voltage measurement; do: utility company consultation, contact manufacturer service.

What can be behind Grid overvoltage

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

Inverter-grid resonance at low short-circuit ratio drafted · lead

Defined in

STP33-62-US-41-BA-en-13 — SMA Solar Technology · 13 drafted · lead
- sec=h238 h=348b014b445a
- sec=h239 h=8aae27dfe35e
STP33-62-US-41 ops manual — SMA Solar Technology drafted · lead
- sec=h155 h=348b014b445a
- sec=h156 h=8aae27dfe35e
STP33-62-US-41-BA-en-14 — SMA drafted · lead
- sec=h239 h=f4ce359e1a74
- sec=h241 h=8aae27dfe35e

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 E036, ABB / FIMER PVS-166-175-TL W004, ABB / FIMER PVS-60-TL CODE:02, ABB / FIMER PVS-60-TL E036, ABB / FIMER PVS-60-TL W004, ABB / FIMER TRIO-20.0-27.6-TL CODE:02, ABB / FIMER TRIO-20.0-27.6-TL E036, ABB / FIMER UNO-DM-3.3-5.0-PLUS CODE:02, ABB / FIMER UNO-DM-3.3-5.0-PLUS E036, ABB / FIMER UNO-DM-3.3-5.0-PLUS W004, ABB / FIMER UNO-DM-6.0-PLUS CODE:02, ABB / FIMER UNO-DM-6.0-PLUS E036, ABB / FIMER UNO-DM-6.0-PLUS W004
Canadian Solar: Canadian Solar 125K-T600GL02 OV-G-V, Canadian Solar 125KTL-GS-E OV-G-V, Canadian Solar 25-40K-T480GL01 OV-G-V, Canadian Solar 25-40KTL-GS-FL OV-G-V, Canadian Solar 50-66K-T480GL01 OV-G-V, Canadian Solar 50-66KTL-GS-FL OV-G-V, Canadian Solar 75-100K-T480GL02 OV-G-V
Fronius: Fronius Galvo 102, Fronius Galvo 212, Fronius Galvo 222, Fronius Primo 102, Fronius Symo 102, Fronius Symo 212, Fronius Symo 222, Fronius Symo 232
Huawei: Huawei SUN2000-100KTL-USH0 2034, Huawei SUN2000-25-30KTL-US 301, Huawei SUN2000-45KTL-US-HV-D0 301
KACO new energy: KACO new energy blueplanet TL3 108, KACO new energy blueplanet TL3 109, KACO new energy blueplanet TL3 110, KACO new energy blueplanet TL3 203, KACO new energy blueplanet TL3 204, KACO new energy blueplanet TL3 205, KACO new energy blueplanet TL3 35, KACO new energy blueplanet TL3 42, KACO new energy blueplanet TL3 44, KACO new energy blueplanet TL3 46, KACO new energy blueplanet TL3 50, KACO new energy blueplanet TL3 81, KACO new energy blueplanet TL3 82, KACO new energy blueplanet TL3 83
SMA: SMA SB-US-40 101-105, SMA SB-US-41 101, SMA SB-US-41 102, SMA SB-US-41 0103, SMA SB-US-41 105, SMA SB-US-41 301, SMA SBSE-US-50 101, SMA SBSE-US-50 102, SMA SBSE-US-50 0103, SMA SBSE-US-50 105, SMA SBSE-US-50 301, SMA SBSE-US-50 302, SMA SBSE-US-50 6602, SMA PEAK3-US 6128, SMA CORE1-US 101, SMA STP-TL-US 101-103, SMA STP-TL-US 301, SMA STP-X-US 101, SMA STP-X-US 102, SMA STP-X-US 0103, SMA STP-X-US 105, SMA STP-X-US 301, SMA STP-X-US 302, SMA STP-X-US 6602, SMA SC-CP-XT 0103, SMA SC-CP-XT 0104, SMA SC-CP-XT 6128, SMA SI-US W319, SMA SI-US W320, SMA SI-US W321, SMA SI-US W322, SMA SI-US W339, SMA SI-US W340, SMA SI-US W341, SMA SI-US W342
Schneider Electric: Schneider Electric CL125 014, Schneider Electric CL125 002
Solis: Solis 1P-4G-US OV-G-V, Solis 3P-5G-US OV-G-V01/02/03/04, Solis RHI-1P-HV OV-G-V01/02/03/04/05, Solis S5-GC OV-G-V, Solis S6-EH1P OV-G-V01/02/03/04/05, Solis S6-EH2P LmtByVar, Solis S6-EH2P LmtByVg, Solis S6-EH2P OV-G-V01, Solis S6-EH2P OV-G-V02, Solis S6-EH2P OV-G-V03, Solis S6-EH2P OV-G-V04, Solis S6-EH2P OV-G-V05, Solis S6-EH3P30-60K LmtByVar, Solis S6-EH3P30-60K LmtByVg, Solis S6-EH3P30-60K OV-G-V01, Solis S6-EH3P30-60K OV-G-V02, Solis S6-EH3P30-60K OV-G-V03, Solis S6-EH3P30-60K OV-G-V04, Solis S6-EH3P30-60K OV-G-V05, Solis S6-EH3P75-150K LmtByVar, Solis S6-EH3P75-150K LmtByVg, Solis S6-EH3P75-150K OV-G-V01, Solis S6-EH3P75-150K OV-G-V02, Solis S6-EH3P75-150K OV-G-V03, Solis S6-EH3P75-150K OV-G-V04, Solis S6-EH3P75-150K OV-G-V05, Solis S6-GC OV-G-V, Solis S6-GU OV-G-V
Sungrow: Sungrow SG-CX-US 014, Sungrow SG-CX-US 015, Sungrow SG-CX-US 002, Sungrow SG-CX-US 003, Sungrow SG200HX 014, Sungrow SG200HX 015, Sungrow SG200HX 002, Sungrow SG200HX 003, Sungrow SG250HX 14, Sungrow SG250HX 15, Sungrow SG250HX 2, Sungrow SG250HX 3, Sungrow SG350HX 014, Sungrow SG350HX 015, Sungrow SG350HX 002, Sungrow SG350HX 003
Yaskawa Solectria: Yaskawa Solectria SGI-XTM Vac High, Yaskawa Solectria SGI-XTM Vac Very High, Yaskawa Solectria XGI-1500-1MW WARN-12, Yaskawa Solectria XGI-1500-1MW WARN-13, Yaskawa Solectria XGI-1500-DCG WARN-12, Yaskawa Solectria XGI-1500-DCG WARN-13, Yaskawa Solectria XGI-1500 WARN-12, Yaskawa Solectria XGI-1500 WARN-13

Same code in other families

Claims

`defined_in`

c1 drafted · lead STP33-62-US-41-BA-en-13

STP33-62-US-41-BA-en-13 sec=h238 h=348b014b445a
STP33-62-US-41-BA-en-13 sec=h239 h=8aae27dfe35e

c2 drafted · lead STP33-62-US-41 ops manual

STP33-62-US-41 ops manual sec=h155 h=348b014b445a
STP33-62-US-41 ops manual sec=h156 h=8aae27dfe35e

c3 drafted · lead STP33-62-US-41-BA-en-14

STP33-62-US-41-BA-en-14 sec=h239 h=f4ce359e1a74
STP33-62-US-41-BA-en-14 sec=h241 h=8aae27dfe35e

`reports`

c4 verified · fact Grid overvoltage

Ten-minute average grid voltage out of range; grid voltage or impedance too high.

STP33-62-US-41-BA-en-13 sec=h239 h=8aae27dfe35e
STP33-62-US-41 ops manual sec=h156 h=8aae27dfe35e
STP33-62-US-41-BA-en-14 sec=h241 h=8aae27dfe35e
STPTL-US-10-IA-xx-22 tbl=13.r1 h=5fb563f4f5f9
SBxx-US-1XP-41-BA-en-12 sec=h221 h=3eae123eca32
SBSExx-US-50-BE-en-11 sec=h459 h=3eae123eca32
STPxx-US-50-BE-en-14 sec=h393 h=3eae123eca32

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

`has_event_class`

c5 drafted · lead Fault (device stops or needs intervention)

STP33-62-US-41-BA-en-13 sec=h239 h=8aae27dfe35e
STP33-62-US-41 ops manual sec=h156 h=8aae27dfe35e
STPTL-US-10-IA-xx-22 tbl=13.r1 h=5fb563f4f5f9
SBxx-US-1XP-41-BA-en-12 sec=h221 h=3eae123eca32

review note: support check: partial - Passage titled 'Grid fault'/disconnects inverter, which suggests fault, but no explicit classification.

`has_production_effect`

c6 drafted · lead Trip (production stops)

STP33-62-US-41-BA-en-13 sec=h239 h=8aae27dfe35e
STP33-62-US-41 ops manual sec=h156 h=8aae27dfe35e
STP33-62-US-41-BA-en-14 sec=h241 h=8aae27dfe35e
STPTL-US-10-IA-xx-22 tbl=13.r1 h=5fb563f4f5f9
SBxx-US-1XP-41-BA-en-12 sec=h221 h=3eae123eca32
SBSExx-US-50-BE-en-11 sec=h459 h=3eae123eca32
STPxx-US-50-BE-en-14 sec=h393 h=3eae123eca32

`detected_by`

c7 drafted · lead Grid voltage measurement

STP33-62-US-41-BA-en-13 sec=h240 h=1baae9a77bf7
STP33-62-US-41 ops manual sec=h157 h=1baae9a77bf7
STP33-62-US-41-BA-en-14 sec=h242 h=1baae9a77bf7
STPTL-US-10-IA-xx-22 tbl=13.r1 h=5fb563f4f5f9
SBxx-US-1XP-41-BA-en-12 sec=h222 h=62ae920ac057
SBSExx-US-50-BE-en-11 sec=h460 h=62ae920ac057
STPxx-US-50-BE-en-14 sec=h394 h=1baae9a77bf7

review note: support check: partial - Passages describe checking grid voltage and ten-minute average, implying voltage monitoring, but do not state the detection method explicitly.

`mitigated_by`

c8 drafted · lead Utility company consultation

If voltage is out of range due to local grid; otherwise contact service.

STP33-62-US-41-BA-en-13 sec=h240 h=1baae9a77bf7
STP33-62-US-41 ops manual sec=h157 h=1baae9a77bf7
STP33-62-US-41-BA-en-14 sec=h242 h=1baae9a77bf7
SBxx-US-1XP-41-BA-en-12 sec=h222 h=62ae920ac057
SBSExx-US-50-BE-en-11 sec=h460 h=62ae920ac057
STPxx-US-50-BE-en-14 sec=h394 h=1baae9a77bf7

c9 drafted · lead Contact manufacturer service

When grid voltage is within range and the message persists.

STP33-62-US-41-BA-en-13 sec=h240 h=1baae9a77bf7
STP33-62-US-41 ops manual sec=h157 h=1baae9a77bf7
STP33-62-US-41-BA-en-14 sec=h242 h=1baae9a77bf7
SBxx-US-1XP-41-BA-en-12 sec=h222 h=62ae920ac057
SBSExx-US-50-BE-en-11 sec=h460 h=62ae920ac057
STPxx-US-50-BE-en-14 sec=h394 h=1baae9a77bf7

`applies_to`

c10 drafted · lead Sunny Tripower CORE1-US

STP33-62-US-41-BA-en-13 sec=h238 h=348b014b445a
STP33-62-US-41-BA-en-13 sec=h239 h=8aae27dfe35e
STP33-62-US-41 ops manual sec=h155 h=348b014b445a
STP33-62-US-41 ops manual sec=h156 h=8aae27dfe35e
STP33-62-US-41-BA-en-14 sec=h239 h=f4ce359e1a74
STP33-62-US-41-BA-en-14 sec=h241 h=8aae27dfe35e

SMA CORE1-US 301

Decoded

What can be behind Grid overvoltage

Defined in

Same condition on other equipment

Same code in other families

Claims

defined_in

reports

has_event_class

has_production_effect

detected_by

mitigated_by

applies_to

Data