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Fault codes › Solis › Solis S6-EH3P(30-60)K-NV-YD-H-US

Solis S6-EH3P30-60K DSP-B-Fault

Code
DSP-B-Fault
Shown as
The master-slave DSP communication is abnormal
Page
95
ID
fc:solis-s6-eh3p-30-60k-us-dspbfault
IRI
https://solarlattice.org/kb/fc/solis-s6-eh3p-30-60k-us-dspbfault
Status
active
Also known as
DSP-B-Fault, dspbfault, Solis DSP-B-Fault, The master-slave DSP communication is abnormal
Category
Inverters
Class fault drafted · lead
Production not stated
Clears after a manual reset drafted · lead

Decoded

Reports internal communication failure; look at digital signal processor; do: inverter restart, inverter replacement.

What can be behind Internal communication failure

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 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 SCH275KTL 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-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 Solis_Manual_S6-EH3P(30-60)K-NV-YD-H-US(21A)_V1_0_20260908

c2 drafted · lead Solis_Manual_S6-EH3P(30-60)K-NV-YD-H-US(21A)_V1.0_20251202

reports

c3 drafted · lead Internal communication failure

affects

c4 drafted · lead Digital signal processor

mitigated_by

c5 drafted · lead Inverter restart

c6 drafted · lead Inverter replacement

has_event_class

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

has_recovery

c8 drafted · lead Manual reset (operator restarts or acknowledges)

Restart first; installer contact or inverter replacement if it persists.

applies_to

c9 drafted · lead Solis S6-EH3P(30-60)K-NV-YD-H-US

Data