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Sungrow SG-CX-US 220-227

Code
220-227
Shown as
PVx abnormal
Page
97
ID
fc:sungrow-sg-cx-us-220-227
IRI
https://solarlattice.org/kb/fc/sungrow-sg-cx-us-220-227
Status
active
Also known as
220-227, Sungrow 220-227, PVx abnormal
Category
Inverters
Class warning drafted · lead
Production not stated
Clears not stated

Decoded

Reports abnormal PV input; look at PV input terminal; do: 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 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, Sungrow SG350HX 580-595

Claims

defined_in

c1 drafted · lead Sungrow 36 60CX-US IOM

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

reports

c3 verified · fact Abnormal PV input

verified by: review-workflowverified on: 2026-10-20

affects

c4 drafted · lead PV input terminal

mitigated_by

c5 drafted · lead DC wiring check

c6 drafted · lead DC fuse replacement

has_event_class

c7 drafted · lead Warning (device continues, a condition is flagged)

Treated as an alarm; may be ignored if the input is intentionally unused.

review note: support check: partial - The row says to ignore the alarm if the string is not needed, which supports the note, but nothing states…

applies_to

c8 drafted · lead Sungrow SG36/60CX-US

Data