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Fault codes › CPS › CPS SCA100K-T-US-480 / SCA50K-T-US-208

CPS SCA50-100K-T PFault0040

Code
PFault0040
Shown as
Steady State GFCI Fault
Page
151
ID
fc:chint-sca-50-100k-t-pfault40
IRI
https://solarlattice.org/kb/fc/chint-sca-50-100k-t-pfault40
Status
active
Also known as
PFault0040, pfault40, CPS PFault0040, Steady State GFCI Fault
Category
Inverters
Class fault verified · fact
Production not stated
Clears not stated

Decoded

Reports ground fault alarm or trip; look at PV array, DC cable; confirm with fault localization; do: DC wiring check.

What can be behind Ground fault alarm or trip

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 E018, ABB / FIMER PVS-60-TL E018, ABB / FIMER TRIO-20.0-27.6-TL E018, ABB / FIMER UNO-DM-3.3-5.0-PLUS E018, ABB / FIMER UNO-DM-6.0-PLUS E018
CPS
CPS SCA50-100K-T Protect0200
Enphase
Enphase M215-M250 GFI Tripped
Fronius
Fronius Galvo 475, Fronius Primo 475, Fronius Symo 475
Huawei
Huawei SUN2000-100KTL-USH0 2031
SMA
SMA SB-US-40 3501, SMA SB-US-40 3601, SMA SB-US-40 3701, SMA SB-US-41 3501, SMA SB-US-41 3601, SMA SB-US-41 3701, SMA SBSE-US-50 3501, SMA SBSE-US-50 3601, SMA SBSE-US-50 3701, SMA PEAK3-US 3501, SMA PEAK3-US 3601, SMA PEAK3-US 3701, SMA CORE1-US 3501, SMA CORE1-US 3701, SMA STP-TL-US 3501, SMA STP-TL-US 3601, SMA STP-TL-US 3701, SMA STP-X-US 3501, SMA STP-X-US 3601, SMA STP-X-US 3701, SMA SC-CP-XT 3501, SMA SC-CP-XT 3502, SMA SC-CP-XT 3507, SMA SC-CP-XT 3512, SMA SC-CP-XT 3515, SMA SC-CP-XT 3601, SMA SC-CP-XT 6487
Schneider Electric
Schneider Electric CL125 033
Solis
Solis S6-EH2P PV ISO-PRO01, Solis S6-EH2P PV ISO-PRO02, Solis S6-EH3P30-60K PV ISO-PRO01, Solis S6-EH3P30-60K PV ISO-PRO02, Solis S6-EH3P75-150K PV ISO-PRO01, Solis S6-EH3P75-150K PV ISO-PRO02
Sungrow
Sungrow SG200HX 1600-1615, Sungrow SG200HX 1632-1655, Sungrow SG250HX 1600-1615, Sungrow SG250HX 1632-1655, Sungrow SG350HX 1600-1615, Sungrow SG350HX 1632-1655
Yaskawa Solectria
Yaskawa Solectria SGI-XTM DC GND Fault, Yaskawa Solectria SGI-XTM RCM Fault, Yaskawa Solectria XGI-1500-1MW CRIT-7, Yaskawa Solectria XGI-1500 CRIT-7, Yaskawa Solectria XGI-1500-DCG CRIT-7

Claims

defined_in

c1 drafted · lead CPS SCA100K-T-US-480 SCA50K-T-US-208 User Manual Rev 1.0

has_event_class

c2 verified · fact Fault (device stops or needs intervention)

verified by: review-workflowverified on: 2026-10-23review note: support check: partial - The table lists a hardware 'Steady State GFCI Fault', but it does not state the device's behaviour.

reports

c3 drafted · lead Ground fault alarm or trip

detected_by

c4 drafted · lead Fault localization

Reconnect strings one at a time to isolate the string that leaks to ground.

affects

c5 drafted · lead PV array

c6 drafted · lead DC cable

review note: support check: partial - The row says to check the PV and ground wires and trace the faulted string's wiring, which only loosely points…

mitigated_by

c7 drafted · lead DC wiring check

Trace the faulted string's wiring for leakage to earth; contact service if it persists.

applies_to

c8 drafted · lead CPS SCA100K-T-US-480 / SCA50K-T-US-208

Data