SUNFLX SEI-8K-SP - Fault and Remedy; Fault Codes and Descriptions

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7. Fault and Remedy
7.1、Fault code
Fault code
Fault name
Whether it
affects the
output or
not
Description
【01】
BatVoltLow
No
Battery undervoltage alarm.
【02】
BatOverCurrSw
Yes
Battery discharge average current
overcurrent (software protection).
【03】
BatOpen
Yes
Battery not-connected alarm.
【04】
BatLowEod
Yes
Battery undervoltage stop discharge
alarm.
【05】
BatOverCurrHw
Yes
Battery overcurrent (hardware
protection).
【06】
BatOverVolt
Yes
Charging overvoltage protection.
【07】
BusOverVoltHw
Yes
Bus overvoltage (hardware protection).
【08】
BusOverVoltSw
Yes
Bus overvoltage (software protection).
【09】
PvVoltHigh
No
PV overvoltage protection.
【10】
PvOCSw
No
Boost overcurrent (software protection).
【11】
PvOCHw
No
Boost overcurrent (hardware protection).
【13】
OverloadBypass
Yes
Bypass overload protection.
【14】
OverloadInverter
Yes
Inverter overload protection.
【15】
AcOverCurrHw
Yes
Inverter overcurrent (hardware
protection).
【17】
InvShort
Yes
Inverter short-circuit protection.
【19】
OverTemperMppt
No
Buck heat sink over temperature
protection.
【20】
OverTemperInv
Yes
Inverter AC output with load or AC
charging radiator over-temperature
protection.