Solar Lattice

Fault codes › ABB / FIMER › TRIO-20.0/27.6-TL-OUTD(-US)

ABB / FIMER TRIO-20.0-27.6-TL E029

Code
E029
Shown as
Mid Bulk OV
Vendor severity
Error
Page
112
ID
fc:abb-trio-20-27-6-tl-outd-e29
IRI
https://solarlattice.org/kb/fc/abb-trio-20-27-6-tl-outd-e29
Status
active
Also known as
E029, e29, ABB / FIMER E029, Mid Bulk OV
Category
Inverters
Class fault drafted · lead
Production not stated
Clears after a manual reset drafted · lead

Decoded

Reports DC bus overvoltage; look at inverter; do: inverter restart, contact manufacturer service.

What can be behind DC bus overvoltage

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 E029, ABB / FIMER PVS-166-175-TL E004, ABB / FIMER PVS-60-TL E029, ABB / FIMER PVS-60-TL E004, ABB / FIMER TRIO-20.0-27.6-TL E004, ABB / FIMER UNO-DM-3.3-5.0-PLUS E029, ABB / FIMER UNO-DM-3.3-5.0-PLUS E004, ABB / FIMER UNO-DM-6.0-PLUS E029, ABB / FIMER UNO-DM-6.0-PLUS E004
CPS
CPS SCA25KTL-208 Fault0130, CPS SCA25KTL-208 Fault0020, CPS SCA25KTL-208 Protect0110, CPS SCA25KTL-208 Protect0090, CPS SCA25KTL-480 Fault0130, CPS SCA25KTL-480 Fault0020, CPS SCA25KTL-480 Protect0110, CPS SCA25KTL-480 Protect0090, CPS SCA50-100K-T Fault7000, CPS SCA50-100K-T PFault0000, CPS SCA50-100K-T PFault0110, CPS SCA50-100K-T Protect0000, CPS SCA50-100K-T Protect0110, CPS SCA50-100K-T Protect0300, CPS SCA50-100K-T Protect0090, CPS SCH100-125KTL Fault0130, CPS SCH100-125KTL Fault0020, CPS SCH100-125KTL Protect0110, CPS SCH100-125KTL Protect0090, CPS SCH125KTL-AIO Fault0130, CPS SCH125KTL-AIO Fault0020, CPS SCH125KTL-AIO Protect0110, CPS SCH125KTL-AIO Protect0090, CPS SCH200-250K-T Fault0130, CPS SCH200-250K-T Fault0030, CPS SCH200-250K-T Protect0000, CPS SCH200-250K-T Protect0300, CPS SCH275KTL Fault0130, CPS SCH275KTL Fault0020, CPS SCH275KTL Protect0110, CPS SCH275KTL Protect0090, CPS SCH350KTL Fault0130, CPS SCH350KTL Fault0020, CPS SCH350KTL Protect0110, CPS SCH350KTL Protect0090
Canadian Solar
Canadian Solar 125K-T600GL02 OV-BUS, Canadian Solar 125KTL-GS-E OV-BUS, Canadian Solar 185-255K OV-BUS, Canadian Solar 25-40K-T480GL01 OV-BUS, Canadian Solar 25-40KTL-GS-FL OV-BUS, Canadian Solar 50-66K-T480GL01 OV-BUS, Canadian Solar 50-66KTL-GS-FL OV-BUS, Canadian Solar 75-100K-T480GL02 OV-BUS
Fronius
Fronius Galvo 308, Fronius Primo 489, Fronius Symo 308, Fronius Symo 489
KACO new energy
KACO new energy blueplanet TL3 216, KACO new energy blueplanet TL3 35, KACO new energy blueplanet TL3 85
SMA
SMA STP-X-US 6405, SMA SC-CP-XT 6405
Schneider Electric
Schneider Electric CL125 019, Schneider Electric CL125 020
Solis
Solis 1P-4G-US OV-BUS, Solis 3P-5G-US OV-BUS, Solis RHI-1P-HV OV-BUS, Solis S5-GC OV-BUS, Solis S6-EH1P OV-BUS, Solis S6-EH2P OV-BUS, Solis S6-EH2P OV-BUS-H, Solis S6-EH3P30-60K OV-BUS, Solis S6-EH3P30-60K OV-BUS-H, Solis S6-EH3P75-150K OV-BUS, Solis S6-EH3P75-150K OV-BUS-H, Solis S6-GC OV-BUS, Solis S6-GU OV-BUS
Yaskawa Solectria
Yaskawa Solectria PVI-25TL-R Fault0130, Yaskawa Solectria PVI-25TL-R Fault0020, Yaskawa Solectria PVI-25TL-R Protect0110, Yaskawa Solectria SGI-XTM DC Overshoot

Same code in other families

Claims

defined_in

c1 drafted · lead FIMER TRIO-20.0-27.6-TL-OUTD Product Manual RevG

has_event_class

c2 drafted · lead Fault (device stops or needs intervention)

from the code prefix

reports

c3 drafted · lead DC bus overvoltage

Internal overvoltage on mid bulk measurement, three-phase models

review note: support check: partial - Internal overvoltage on the mid bulk, three-phase only, is stated, but not explicitly a DC bus overvoltage.

affects

c4 verified · fact Inverter

verified by: review-workflowverified on: 2026-10-23

mitigated_by

c5 drafted · lead Inverter restart

c6 drafted · lead Contact manufacturer service

has_recovery

c7 drafted · lead Manual reset (operator restarts or acknowledges)

Power cycle first; contact service if it persists

review note: support check: partial - Power cycle then contact service is stated, but manual-reset clearing isn't.

applies_to

c8 drafted · lead TRIO-20.0/27.6-TL-OUTD string inverter

Data