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Installation guide / User manual
AX Plus 5-15kW 3ph Hybrid Inverter
Fault Code
Bat Relay
The battery relay keeps open.
Open
• Disconnect PV, grid and battery, then reconnect.
Bat Relay
The battery relay keeps close.
Short Circuit
• Disconnect PV, grid and battery, then reconnect.
Bat Buck
The battery buck circuit mosfet is fail.
Fault
• Disconnect PV, grid and battery, then reconnect.
The battery boost circuit mosfet is fail or The relay on the battery side of
the inverter is not closed.
Bat Boost
To upgrade to the latest software, at least ensure that the master is
Fault
upgraded to 1.69 or above.
• Disconnect PV, grid and battery, then reconnect.
Eps Relay
The eps relay is failed.
Fault
• Disconnect PV, grid and battery, then reconnect.
The battery connection is reversed.
BatCon Dir
• Check if the positive pole and negative pole of battery are correctly
Fault
Grid Relay
The grid relay keeps open or close.
Fault
• Disconnect PV, grid and battery, then reconnect.
RDSP SPI
The communication between master and slave is fail.
Fault
• Disconnect PV, grid and battery, then reconnect.
RDSP Smpl
The slave sample detection circuit is failed.
Fault
• Disconnect PV, grid and battery, then reconnect.
ARM EEPROM
The manager eeprom is fault.
Fault
• Disconnect PV, grid and battery, then reconnect.
The communication between meter and inverter is interrupted.
Meter Lost
• Check if the communication cable between meter and inverter is
Fault
The communication between BMS and inverter is interrupted.
BMS Lost
• Check if the communication cable between BMS and inverter is
The communication between BMS and inverter is interrupted.
Bms Ext
• Check if the communication cable between BMS and inverter is
Fault
DIP switch at the wrong position;
The communication between battery packs is interrupted.
Bms Int Fault
• Move the DIP switch to the correct position;
• Check if the communication cable between battery packs is correctly
atx054en0225
connected.
correctly and well connected.
correctly and well connected.
correctly and well connected.
and well connected.
Solution
Page 135
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