If your inverter's information panel is not displaying a Fault light, check the following
list to make sure that the present state of the installation allows proper operation of
the unit.
— Is the inverter located in a clean, dry, adequately ventilated place?
— Have the
input breakers been opened?
DC
— Are the cables adequately sized and short enough?
— Are the input and output connections and wiring in good condition?
— Are the configurations settings correct for your particular installation?
— Are the display panel and the communications cable properly
connected and undamaged?
SW_OCP
Over current fault detected by software
• Wait for a while to check if back to normal
• Turn off the PV, battery and grid, reconnect them
• Or reach out to Solax Technical Support
RCD_DeviceFault
Residual Current Device Fault
• Check the impedance of DC input and AC output.
• Disconnect PV+, PV- and battery, reconnect them.
• Or reach out to Solax Technical Support, if you are unable to return
to a normal state
SlaveUpdateFail
SoftVerFault
Firmware Version Fault
• Check if the ARM and DSP1 version is matched.
• Or reach out to Solax Technical Support, if you are unable to return
to a normal state
Contact the
Solax
customer support for further assistance. Please be prepared to
describe details of your system installation and provide model and serial number of
the unit.
Slave Update Fail
• Restart the inverter and update the slave program again
• Or reach out to Solax Technical Support, if you are unable to return
to a normal state
Faults
Diagnosis and solution
InternalCommsFault
Internal Communication Fault
• Turn off the PV, battery and grid, reconnect them
• Or reach out to Solax Technical Support, if you are unable to
return to a normal state.
IsolationFault
Isolation Fault
• Check if the insulation of electric wires are damaged
• Wait for a while to check if back to normal
• Or reach out to Solax Technical Support
MainsLost
Grid is Lost.
• Wait for a while and system will reconnect if the utility is back
to normal
• Check whether the cable connection at AC side is normal or
not
• Or reach out to Solax Technical Support
Mgr EEPROM Fault
Manager EEPROM Fault.
• Turn off the PV, battery and grid , reconnect them
• Or reach out to Solax Technical Support, if you are unable to
return to a normal statestate
Other_DeviceFault
Other Device Fault
• Disconnect PV+, PV-, grid and battery, reconnect them
• Or reach out to Solax Technical Support, if you are unable to
return to a normal state
OverTemperature
Fault
Temperature over the limitation
• Check if the environment temperature is over limitation
• Or reach out to Solax Technical Support
ParalLineFault
Parallel Fault
• The DSP1 version is different
• Parallel system has two or more master machines
• Or reach out to Solax Technical Support, if you are unable to
return to a normal state
PvVoltFault
PV Voltage Out of Range
• Check the output voltage of the PV panels
• Or reach out to Solax Technical Support
RC_OCP
DCI over current protection Fault.
• Check if the insulation of electric wires are damaged
• Wait for a while to check if back to normal
• Or reach out to Solax Technical Support
UnderTemperature
Fault
Temperature Below the Limitation
• Check if the environment temperature is lower than the
limitation
• Or reach out to Solax Technical Support, if you are unable to
return to a normal state
Faults
SampleConsistence
Fault
The detection circuit Fault
• Disconnect PV+, PV- and battery, reconnect them
• Or reach out to Solax Technical Support, if you are unable to
return to a normal state
Diagnosis and solution
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Troubleshooting
Troubleshooting
