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Fault codes › Sungrow › Sungrow SG350HX-US

Sungrow SG350HX 580-595

Code
580-595
Shown as
PV Abnormal Alarm
Page
90
ID
fc:sungrow-sg350hx-580-595
IRI
https://solarlattice.org/kb/fc/sungrow-sg350hx-580-595
Status
active
Also known as
580-595, Sungrow 580-595, PV Abnormal Alarm
Category
Inverters
Class warning drafted · lead
Production not stated
Clears not stated

Decoded

Reports abnormal PV input; look at PV array; confirm with DC voltage measurement, PV input current measurement; do: avoiding partial shading, manual cleaning, DC wiring check, DC fuse replacement.

What can be behind Abnormal PV input

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

CPS
CPS SCA50-100K-T Fault0000-0150, CPS SCA50-100K-T Fault1000-1070, CPS SCA50-100K-T Fault5000, CPS SCA50-100K-T Protect0380
Huawei
Huawei SUN2000-45KTL-US-HV-D0 413
SMA
SMA SBSE-US-50 6801, SMA SBSE-US-50 6901, SMA STP-TL-US 6801-6802, SMA STP-TL-US 6901-6902, SMA SI-US W854, SMA SI-US W864, SMA SI-US W874, SMA SI-US W884
Sungrow
Sungrow SG-CX-US 220-227, Sungrow SG-CX-US 548-563, Sungrow SG-CX-US 580-587, Sungrow SG-CX-US 078-081, Sungrow SG200HX 548-563, Sungrow SG200HX 580-595, Sungrow SG250HX 548-563, Sungrow SG250HX 580-595, Sungrow SG350HX 548-563

Same code in other families

Claims

defined_in

c1 drafted · lead Sungrow SG350HX-US User Manual

reports

c2 drafted · lead Abnormal PV input

affects

c3 drafted · lead PV array

Codes 580 to 595 map to strings 17 to 32.

detected_by

c4 drafted · lead DC voltage measurement

review note: support check: partial - Told to check voltage and current for abnormality, not explicitly DC voltage measurement as detection.

c5 drafted · lead PV input current measurement

review note: support check: partial - Told to check voltage and current, not explicitly PV input current measurement.

mitigated_by

c6 drafted · lead Avoiding partial shading

c7 verified · fact Manual cleaning

verified by: review-workflowverified on: 2026-10-23review note: support check: partial - Ensure module cleanness after removing shelter; manual cleaning not explicitly stated.

c8 drafted · lead DC wiring check

c9 drafted · lead DC fuse replacement

Only where a fuse sits between string and inverter input.

has_event_class

c10 drafted · lead Warning (device continues, a condition is flagged)

applies_to

c11 drafted · lead Sungrow SG350HX-US

Data