Fault codes › Sungrow › Sungrow SG36/60CX-US

Sungrow SG-CX-US 448-471

Code: 448-471
Shown as: String x reverse connection fault
Page: 97
ID: fc:sungrow-sg-cx-us-448-471
IRI: https://solarlattice.org/kb/fc/sungrow-sg-cx-us-448-471
Status: active
Also known as: 448-471, Sungrow 448-471, String x reverse connection fault
Category: Inverters

Class fault drafted · lead

Production not stated

Clears not stated

Decoded

Reports reverse polarity; look at PV array; confirm with string polarity measurement; do: string polarity correction.

What can be behind Reverse polarity

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

DC string miswiring verified · fact

Defined in

Sungrow 36 60CX-US IOM — Sungrow drafted · lead
- tbl=54.r4 h=4fb9f1339aab
Sungrow SG36_60CX-US User Manual Ver17 202411 — Sungrow drafted · lead
- tbl=40.r4 h=4fb9f1339aab

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 E046, ABB / FIMER PVS-60-TL E046, ABB / FIMER TRIO-20.0-27.6-TL E046, ABB / FIMER UNO-DM-3.3-5.0-PLUS E046, ABB / FIMER UNO-DM-6.0-PLUS E046
CPS: CPS SCA25KTL-208 PVxReverse, CPS SCA25KTL-480 PV Reverse, CPS SCA36KTL PVxReverse, CPS SCA50-100K-T Protect0350, CPS SCA50-100K-T Protect0410, CPS SCA50-100K-T Protect0430, CPS SCA50-100K-T Protect0810, CPS SCA50-100K-T Protect0840, CPS SCA50-100K-T Protect0870, CPS SCA50-60KTL PVxReverse, CPS SCH100-125KTL PV Reverse, CPS SCH125KTL-AIO PV Reverse, CPS SCH350KTL Reverse PVx electrode
Canadian Solar: Canadian Solar 125K-T600GL02 Reve-DC, Canadian Solar 185-255K Reve-DC, Canadian Solar 23-28KTL-CT PV1 (2) Reverse, Canadian Solar 75-100K-T480GL02 Reve-DC
Fronius: Fronius Symo 311
Huawei: Huawei SUN2000-100KTL-USH0 2011, Huawei SUN2000-25-30KTL-US 120-125, Huawei SUN2000-45KTL-US-HV-D0 120-127
SMA: SMA SB-US-40 6803, SMA SB-US-40 6903, SMA SB-US-40 8503, SMA SB-US-41 6803, SMA SB-US-41 6903, SMA SB-US-41 8503, SMA SBSE-US-50 4013, SMA SBSE-US-50 4014, SMA SBSE-US-50 4015, SMA SBSE-US-50 4016, SMA SBSE-US-50 4017, SMA SBSE-US-50 8503, SMA SBSE-US-50 9342, SMA SC-CP-XT 4003, SMA SI-US W851, SMA SI-US W861, SMA SI-US W871, SMA SI-US W881
Schneider Electric: Schneider Electric CL125 028
Solis: Solis 3P-5G-US Reve-DC, Solis S5-GC Reve-DC, Solis S6-GC Reve-DC, Solis S6-GU Reve-DC
Sungrow: Sungrow SG-CX-US 532-547, Sungrow SG-CX-US 564-571, Sungrow SG200HX 208, Sungrow SG200HX 212, Sungrow SG200HX 264-283, Sungrow SG200HX 28, Sungrow SG200HX 29, Sungrow SG200HX 448-479, Sungrow SG200HX 532-547, Sungrow SG200HX 564-579, Sungrow SG250HX 208, Sungrow SG250HX 212, Sungrow SG250HX 264-283, Sungrow SG250HX 28, Sungrow SG250HX 29, Sungrow SG250HX 448-479, Sungrow SG250HX 532-547, Sungrow SG250HX 564-579, Sungrow SG350HX 208, Sungrow SG350HX 212, Sungrow SG350HX 264-283, Sungrow SG350HX 28, Sungrow SG350HX 29, Sungrow SG350HX 448-479, Sungrow SG350HX 532-547, Sungrow SG350HX 564-579
Yaskawa Solectria: Yaskawa Solectria PVI-14-20TL PV1 (2) Reverse, Yaskawa Solectria PVI-25TL-R PV Reverse, Yaskawa Solectria PVI-TL PV1 (2) Reverse

Claims

`defined_in`

c1 drafted · lead Sungrow 36 60CX-US IOM

Sungrow 36 60CX-US IOM tbl=54.r4 h=4fb9f1339aab

c2 drafted · lead Sungrow SG36_60CX-US User Manual Ver17 202411

Sungrow SG36_60CX-US User Manual Ver17 202411 tbl=40.r4 h=4fb9f1339aab

`reports`

c3 drafted · lead Reverse polarity

Sungrow 36 60CX-US IOM tbl=54.r4 h=4fb9f1339aab
Sungrow SG36_60CX-US User Manual Ver17 202411 tbl=40.r4 h=4fb9f1339aab

`affects`

c4 drafted · lead PV array

Sungrow 36 60CX-US IOM tbl=54.r4 h=4fb9f1339aab
Sungrow SG36_60CX-US User Manual Ver17 202411 tbl=40.r4 h=4fb9f1339aab

`detected_by`

c5 drafted · lead String polarity measurement

Sungrow 36 60CX-US IOM tbl=54.r4 h=4fb9f1339aab
Sungrow SG36_60CX-US User Manual Ver17 202411 tbl=40.r4 h=4fb9f1339aab

review note: support check: partial - Check method has checking whether the string is reverse polarity, but no explicit detection method of polarity measurement is stated.