Fault codes › CPS › CPS SCH275KTL-DO/US-800

CPS SCH275KTL CommErr

Code: CommErr
Vendor severity: Alarm
Page: 70
ID: fc:chint-sch-275ktl-commerr
IRI: https://solarlattice.org/kb/fc/chint-sch-275ktl-commerr
Status: active
Also known as: CommErr, commerr, CPS CommErr
Category: Inverters

Class warning drafted · lead

Production not stated

Clears by itself drafted · lead

Decoded

Reports internal communication failure; do: inverter restart, contact manufacturer service.

What can be behind Internal communication failure

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

Communication bus wiring or termination fault drafted · lead
Real-time clock failure verified · fact

Defined in

CPS SCH275KTL-DO-US-800 V2 User Manual Rev 1.7 — CPS (Chint Power Systems) · page 70 drafted · lead
- tbl=24.r1 h=1d25ec1c879a
- tbl=24.r2 h=8a49e69e6164
- tbl=24.r3 h=ff2cdce4cb07

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 E003, ABB / FIMER PVS-166-175-TL E005, ABB / FIMER PVS-166-175-TL E054, ABB / FIMER PVS-166-175-TL E074, ABB / FIMER PVS-60-TL E003, ABB / FIMER PVS-60-TL E005, ABB / FIMER PVS-60-TL E054, ABB / FIMER PVS-60-TL E074, ABB / FIMER TRIO-20.0-27.6-TL E003, ABB / FIMER TRIO-20.0-27.6-TL E005, ABB / FIMER UNO-DM-3.3-5.0-PLUS E003, ABB / FIMER UNO-DM-3.3-5.0-PLUS E005, ABB / FIMER UNO-DM-3.3-5.0-PLUS E054, ABB / FIMER UNO-DM-6.0-PLUS E003, ABB / FIMER UNO-DM-6.0-PLUS E005, ABB / FIMER UNO-DM-6.0-PLUS E054
CPS: CPS SCA25KTL-208 CommErr, CPS SCA25KTL-480 CommErr, CPS SCA50-100K-T Fault6050, CPS SCA50-100K-T Fault6100, CPS SCA50-100K-T Protect1070, CPS SCA50-100K-T Protect0770, CPS SCA50-100K-T Warn0020, CPS SCH100-125KTL CommErr, CPS SCH125KTL-AIO CommErr, CPS SCH200-250K-T CommErr, CPS SCH350KTL CommErr
Canadian Solar: Canadian Solar 185-255K DSP-B-FAULT, Canadian Solar 23-28KTL-CT CommErr
Fronius: Fronius Galvo 401, Fronius Galvo 416, Fronius Galvo 425, Fronius Galvo 452, Fronius Galvo 752, Fronius Primo 401, Fronius Primo 416, Fronius Primo 425, Fronius Primo 452, Fronius Primo 485, Fronius Primo 515, Fronius Primo 516, Fronius Primo 752, Fronius Symo 401, Fronius Symo 416, Fronius Symo 425, Fronius Symo 452, Fronius Symo 485, Fronius Symo 515, Fronius Symo 516, Fronius Symo 519, Fronius Symo 601, Fronius Symo 752
Huawei: Huawei SUN2000-25-30KTL-US 322, Huawei SUN2000-45KTL-US-HV-D0 322
KACO new energy: KACO new energy blueplanet TL3 34
SMA: SMA SB-US-40 6701-6702, SMA SB-US-41 6701, SMA SB-US-41 6702, SMA PEAK3-US 6701, SMA CORE1-US 6701, SMA CORE1-US 6702, SMA CORE1-US 7622, SMA STP-TL-US 6701-6702, SMA SC-CP-XT 6119, SMA SC-CP-XT 7600, SMA SC-CP-XT 7602, SMA SC-CP-XT 7605, SMA SI-US F739, SMA SI-US F743, SMA SI-US W740, SMA SI-US W741, SMA SI-US W742, SMA SI-US W744, SMA SI-US W745, SMA SI-US W746
Schneider Electric: Schneider Electric CL125 059, Schneider Electric CL125 074
Solis: Solis 3P-5G-US DSP-B-Fault, Solis RHI-1P-HV DSP-B-Fault, Solis S6-EH1P DSP-B-Fault, Solis S6-EH2P DSP-B-Fault, Solis S6-EH3P30-60K DSP-B-Fault, Solis S6-EH3P75-150K DSP-B-Fault, Solis S6-GC DSP-B-Fault, Solis S6-GU DSP-B-Fault
Yaskawa Solectria: Yaskawa Solectria PVI-14-20TL SPICommErr, Yaskawa Solectria PVI-25TL-R CommErr, Yaskawa Solectria PVI-TL SPICommErr, Yaskawa Solectria XGI-1500-1MW CRIT-2, Yaskawa Solectria XGI-1500-1MW CRIT-3, Yaskawa Solectria XGI-1500 CRIT-2, Yaskawa Solectria XGI-1500 CRIT-3, Yaskawa Solectria XGI-1500-DCG CRIT-2, Yaskawa Solectria XGI-1500-DCG CRIT-3

Same code in other families

Claims

`defined_in`

c1 drafted · lead CPS SCH275KTL-DO-US-800 V2 User Manual Rev 1.7

CPS SCH275KTL-DO-US-800 V2 User Manual Rev 1.7 tbl=24.r1 h=1d25ec1c879a
CPS SCH275KTL-DO-US-800 V2 User Manual Rev 1.7 tbl=24.r2 h=8a49e69e6164
CPS SCH275KTL-DO-US-800 V2 User Manual Rev 1.7 tbl=24.r3 h=ff2cdce4cb07

`has_event_class`

c2 drafted · lead Warning (device continues, a condition is flagged)

from the table header

CPS SCH275KTL-DO-US-800 V2 User Manual Rev 1.7 tbl=24.r1 h=1d25ec1c879a
CPS SCH275KTL-DO-US-800 V2 User Manual Rev 1.7 tbl=24.r2 h=8a49e69e6164
CPS SCH275KTL-DO-US-800 V2 User Manual Rev 1.7 tbl=24.r3 h=ff2cdce4cb07
CPS SCH275KTL-DO-US-800 V2 User Manual Rev 1.7 tbl=24 h=943e21608be7

`reports`

c3 drafted · lead Internal communication failure

CPS SCH100-125KTL-DO-US-600-480 User Manual Rev 1.9 tbl=32.r1 h=1d25ec1c879a
CPS SCH125KTL-AIO-US-600 Sep 2020 tbl=29.r1 h=cdea98d0f253
CPS SCH275KTL-DO-US-800 V2 User Manual Rev 1.7 tbl=24.r1 h=1d25ec1c879a
CPS SCA25KTL-DO-US-208 User Manual Rev 1.2 tbl=49.r3 h=a402e3a3a132
CPS 25kW User Manual Rev 2.1 tbl=54.r1 h=58820161a345
CPS SCH200-250K-T-US User Manual Aug 2026 tbl=41.r1 h=77985fbffbd6

`has_recovery`

c4 drafted · lead Auto-reset (clears by itself)

Usually clears by itself; then reboot, then service if persisting

CPS SCH100-125KTL-DO-US-600-480 User Manual Rev 1.9 tbl=32.r3 h=ff2cdce4cb07
CPS SCA25KTL-DO-US-208 User Manual Rev 1.2 tbl=49.r4 h=89e8a85f2e95
CPS 25kW User Manual Rev 2.1 tbl=55.r1 h=a37a7c047fe8
CPS SCH125KTL-AIO-US-600 Sep 2020 tbl=29.r3 h=8ba6a7859a01
CPS SCH200-250K-T-US User Manual Aug 2026 tbl=41.r1 h=77985fbffbd6
CPS SCH275KTL-DO-US-800 V2 User Manual Rev 1.7 tbl=24.r3 h=ff2cdce4cb07
CPS SCH350KTL-DO-US-800 User Manual Rev 2.2 tbl=33.r2 h=cf577b21cc53

review note: support check: partial - Observing for automatic elimination is the first step, but 'usually clears by itself' is not stated; reboot and service steps…