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Fault codes › SMA › Sunny Central 500CP XT-1000CP XT

SMA SC-CP-XT 0503

Code
0503
Page
35
ID
fc:sma-sunny-central-cp-xt-503
IRI
https://solarlattice.org/kb/fc/sma-sunny-central-cp-xt-503
Status
active
Also known as
0503, 503, SMA 0503
Category
Inverters
Class fault drafted · lead
Production stops verified · fact
Clears by itself drafted · lead

Decoded

Reports grid overfrequency; confirm with grid frequency measurement; do: external fuse check, utility company consultation, inverter parameter adjustment.

What can be behind Grid overfrequency

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 W006, ABB / FIMER PVS-60-TL CODE:01, ABB / FIMER PVS-60-TL W006, ABB / FIMER TRIO-20.0-27.6-TL CODE:01, ABB / FIMER UNO-DM-3.3-5.0-PLUS CODE:01, ABB / FIMER UNO-DM-3.3-5.0-PLUS W006, ABB / FIMER UNO-DM-6.0-PLUS CODE:01, ABB / FIMER UNO-DM-6.0-PLUS W006
Canadian Solar
Canadian Solar 125K-T600GL02 OV-G-F, Canadian Solar 125KTL-GS-E OV-G-F, Canadian Solar 185-255K OV-G-F01/02, Canadian Solar 25-40K-T480GL01 OV-G-F, Canadian Solar 25-40KTL-GS-FL OV-G-F, Canadian Solar 50-66K-T480GL01 OV-G-F, Canadian Solar 50-66KTL-GS-FL OV-G-F, Canadian Solar 75-100K-T480GL02 OV-G-F
Fronius
Fronius Galvo 105, Fronius Galvo 560, Fronius Primo 105, Fronius Primo 560, Fronius Symo 105, Fronius Symo 560
Huawei
Huawei SUN2000-100KTL-USH0 2036, Huawei SUN2000-25-30KTL-US 305, Huawei SUN2000-45KTL-US-HV-D0 305
KACO new energy
KACO new energy blueplanet TL3 49
SMA
SMA SBSE-US-50 507, SMA PEAK3-US 0503, SMA PEAK3-US 507, SMA STP-X-US 507, SMA SC-CP-XT 0505, SMA SI-US W327, SMA SI-US W328, SMA SI-US W329, SMA SI-US W330
Schneider Electric
Schneider Electric CL125 008
Solis
Solis 1P-4G-US OV-G-F, Solis 3P-5G-US OV-G-F01/02, Solis RHI-1P-HV OV-G-F01/02, Solis S5-GC OV-G-F, Solis S6-EH1P OV-G-F01/02, Solis S6-EH2P OV-G-F01, Solis S6-EH2P OV-G-F02, Solis S6-EH3P30-60K OV-G-F01, Solis S6-EH3P30-60K OV-G-F02, Solis S6-EH3P75-150K OV-G-F01, Solis S6-EH3P75-150K OV-G-F02, Solis S6-GC OV-G-F, Solis S6-GU OV-G-F
Sungrow
Sungrow SG-CX-US 008, Sungrow SG200HX 008, Sungrow SG250HX 8, Sungrow SG350HX 008
Yaskawa Solectria
Yaskawa Solectria SGI-XTM Fac High, Yaskawa Solectria XGI-1500-1MW WARN-7, Yaskawa Solectria XGI-1500-1MW WARN-8, Yaskawa Solectria XGI-1500-DCG WARN-7, Yaskawa Solectria XGI-1500-DCG WARN-8, Yaskawa Solectria XGI-1500 WARN-7, Yaskawa Solectria XGI-1500 WARN-8

Same code in other families

Claims

defined_in

c1 drafted · lead SCCPXT-E7-WA-en-37

reports

c2 drafted · lead Grid overfrequency

detected_by

c3 drafted · lead Grid frequency measurement

review note: support check: partial - Passage advises checking grid frequency, but it's for a different message (u31) and doesn't state detection by frequency measurement; the…

mitigated_by

c4 drafted · lead External fuse check

c5 drafted · lead Utility company consultation

When frequency fluctuations occur frequently.

c6 drafted · lead Inverter parameter adjustment

Only with grid operator approval, coordinated with Service.

has_event_class

c7 drafted · lead Fault (device stops or needs intervention)

review note: support check: partial - Disconnection from grid is stated but no explicit fault classification.

has_production_effect

c8 verified · fact Trip (production stops)

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

has_recovery

c9 drafted · lead Auto-reset (clears by itself)

review note: support check: partial - Reconnection after grid monitoring implies auto-reset, but manual acknowledgment may be required depending on parameterization.

applies_to

c10 drafted · lead Sunny Central CP XT

Data