LUX-X-96050HG01
Battery33 codes01High Battery Voltage.Warning
Battery pack voltage exceeds the upper threshold.
Battery pack overall voltage too high (overcharge condition).
Stop charging.
LUX-X-96050HG01-Lithium-Battery-User-Guide.pdf · page 2102Low Battery Voltage.Warning
Battery pack voltage below the lower threshold.
Battery pack overall voltage too low (over-discharge condition).
Stop discharging.
LUX-X-96050HG01-Lithium-Battery-User-Guide.pdf · page 2103High Cell Voltage.Warning
Individual cell voltage exceeds maximum allowed value.
Cell-level overvoltage (imbalance or overcharge of a single cell).
Stop charging.
LUX-X-96050HG01-Lithium-Battery-User-Guide.pdf · page 2104Low Cell Voltage.Warning
Individual cell voltage below minimum allowed value.
Cell-level undervoltage (imbalance or deep discharge of a single cell).
Stop discharging.
LUX-X-96050HG01-Lithium-Battery-User-Guide.pdf · page 2105High Charging Current.Warning
Charging current above safe limit.
Excessive charging current from inverter/charger.
Reduce charging current.
LUX-X-96050HG01-Lithium-Battery-User-Guide.pdf · page 2106High Discharging Current.Warning
Discharging current above safe limit.
Excessive load current draw from the battery.
Reduce discharging current.
LUX-X-96050HG01-Lithium-Battery-User-Guide.pdf · page 2107High BMS Temperature.Warning
BMS internal temperature has exceeded safe operating limit.
BMS overheating due to high ambient temperature, poor ventilation, or high current operation.
Stop charging and discharging, wait for the temperature to drop.
LUX-X-96050HG01-Lithium-Battery-User-Guide.pdf · page 2108Low BMS Temperature.Warning
BMS internal temperature is below safe operating limit.
BMS too cold (ambient temperature below operating range).
Wait for temperature rise.
LUX-X-96050HG01-Lithium-Battery-User-Guide.pdf · page 2109High Cell Temperature.Warning
Battery cell temperature has exceeded safe operating limit.
Cell overheating due to high ambient temperature or high current operation.
Stop charging and discharging, wait for the temperature to drop.
LUX-X-96050HG01-Lithium-Battery-User-Guide.pdf · page 2110Low Cell Temperature.Warning
Battery cell temperature is below safe operating limit.
Cell too cold (ambient temperature below charge/discharge range).
Wait for temperature rise.
LUX-X-96050HG01-Lithium-Battery-User-Guide.pdf · page 2111AFE Fault.Critical
Analog Front End (AFE) fault detected by the BMS.
Internal BMS measurement IC (AFE) malfunction.
Restart, if the fault still exists, contact our engineer.
LUX-X-96050HG01-Lithium-Battery-User-Guide.pdf · page 2112Soft Start Failed.Critical
Pre-charge / soft-start sequence failed during system power-up.
Pre-charge circuit failure, excessive inverter capacitance, or external short on output.
Restart, if the fault still exists, contact our engineer.
LUX-X-96050HG01-Lithium-Battery-User-Guide.pdf · page 2113Slave Communication Failure.Critical
Communication failure between the master controller and one or more slave battery modules.
Poor contact / loose or damaged inter-module communication cable.
Check for poor contact of the communication line.
LUX-X-96050HG01-Lithium-Battery-User-Guide.pdf · page 2114Low Output Impedance.Critical
Output impedance is too low (possible short-circuit or bus fault detected).
Suspected short-circuit on output bus or precharge fault.
Restart, if the fault still exists, contact our engineer.
LUX-X-96050HG01-Lithium-Battery-User-Guide.pdf · page 2115Slave Version Fault.Critical
Firmware version mismatch on one or more slave battery modules.
Slave module firmware incompatible with the master controller.
Contact our engineer to upgrade the program.
LUX-X-96050HG01-Lithium-Battery-User-Guide.pdf · page 21ALARM_LEDAlarm LED.Warning
Indicates the fault status of the battery; lights up when a fault occurs.
Any active BMS fault condition (see fault codes 01-15).
Check LCD fault message for detailed fault definition before troubleshooting; the alarm clears automatically once the triggering condition is removed.
LUX-X-96050HG01-Lithium-Battery-User-Guide.pdf · page 19CHARGING_LEDCharging LED.Info
Indicates the charging status of the battery; flashing indicates charging.
LUX-X-96050HG01-Lithium-Battery-User-Guide.pdf · page 19PROT_BAT_INTERNAL_SHORTBattery Internal Short Circuit Protection.Critical
Internal short circuit detected within the battery pack.
Internal cell or busbar short within the battery module.
Stop using the battery immediately and contact FelicityESS service; do not charge or discharge a damaged battery.
LUX-X-96050HG01-Lithium-Battery-User-Guide.pdf · page 7PROT_BAT_OVERCURRENTBattery Over Current Protection.Critical
Battery over-current protection trip.
Charge or discharge current exceeded battery limit (max continuous 50A, peak 60A/15s).
Reduce current; verify inverter is configured within recommended 25A continuous (max 50A) range.
LUX-X-96050HG01-Lithium-Battery-User-Guide.pdf · page 7PROT_BAT_OVERTEMPBattery Over Temperature Protection.Critical
Battery over-temperature protection trip.
Cell or pack temperature exceeded safe operating limit.
Stop charging/discharging, allow battery to cool, ensure ambient is within Charge 0~+55C / Discharge -20C~+55C.
LUX-X-96050HG01-Lithium-Battery-User-Guide.pdf · page 7PROT_BAT_OVERVOLTAGEBattery Over Voltage Protection.Critical
Battery overall over-voltage protection trip.
Battery pack voltage exceeded safe maximum (overcharge).
Stop charging; check inverter charge voltage settings (target 113.6V x N).
LUX-X-96050HG01-Lithium-Battery-User-Guide.pdf · page 7PROT_BAT_UNDERVOLTAGEBattery Under Voltage Protection.Critical
Battery overall under-voltage protection trip.
Battery pack voltage dropped below safe minimum (over-discharge).
Stop discharging; recharge battery promptly. Battery should be charged within 3 months of storage to avoid deep discharge.
LUX-X-96050HG01-Lithium-Battery-User-Guide.pdf · page 7PROT_INV_EXT_SHORT_CIRCUITExternal Short Circuit Protection.Critical
External short-circuit detected at the inverter interface.
Short circuit on the DC power cabling between battery and inverter.
Power off system and inspect DC wiring and inverter for short circuit before re-energising.
LUX-X-96050HG01-Lithium-Battery-User-Guide.pdf · page 7PROT_INV_INRUSH_CURRENTInrush Current Protection.Critical
Inrush current protection trip when battery output is connected to inverter.
Excessive inrush current to inverter capacitors at startup (precharge issue).
Restart the battery and inverter following correct power-on sequence; if persistent, contact service engineer.
LUX-X-96050HG01-Lithium-Battery-User-Guide.pdf · page 7PROT_INV_OVERCURRENTInverter Interface Over Current Protection.Critical
Inverter-side over-current protection trip on the battery interface.
Charge or discharge current at inverter interface exceeds limit.
Reduce inverter charge/discharge current setpoint; verify cabling and load conditions.
LUX-X-96050HG01-Lithium-Battery-User-Guide.pdf · page 7PROT_INV_OVERTEMPInverter Interface Over Temperature Protection.Critical
Over-temperature protection at the inverter interface.
Battery interface / contactor temperature exceeded safe limit.
Allow system to cool; verify ventilation and ambient temperature within specification (Charge 0~+55C / Discharge -20C~+55C).
LUX-X-96050HG01-Lithium-Battery-User-Guide.pdf · page 7PROT_INV_OVERVOLTAGEInverter Interface Over Voltage Protection.Critical
Inverter-side over-voltage protection trip on the battery inverter interface.
Inverter or DC bus voltage exceeds safe value at the battery interface.
Check inverter charge voltage settings and DC bus; ensure inverter compatibility and correct configuration.
LUX-X-96050HG01-Lithium-Battery-User-Guide.pdf · page 7PROT_INV_REVERSE_POLARITY_GNDReverse Polarity Ground Fault.Critical
Reverse polarity / ground fault detected on the inverter interface.
Battery (+) and (-) cables connected with reversed polarity to the inverter, or ground fault.
Power off and verify polarity of DC cabling between battery and inverter; correct wiring before re-energising.
LUX-X-96050HG01-Lithium-Battery-User-Guide.pdf · page 7STATUS_LEDStatus LED.Info
Indicates the operating status of the battery; always on when running normally.
LUX-X-96050HG01-Lithium-Battery-User-Guide.pdf · page 19TS_ALARM_ON_LCD_AND_INVERTERAlarm information shown on both LCD and inverter screen after power-on.Critical
After the battery system is powered on, alarm information appears simultaneously on the LCD and inverter display screen.
Active fault in the battery system requiring service intervention.
Contact the local distributor.
LUX-X-96050HG01-Lithium-Battery-User-Guide.pdf · page 22TS_LCD_NO_LIGHTLCD does not light up or flash on power-on.Critical
After DC switch on and POWER on, the LCD does not light up or flash; battery system cannot work.
Battery system internal fault preventing power-up.
Contact the local distributor.
LUX-X-96050HG01-Lithium-Battery-User-Guide.pdf · page 22TS_NO_SOC_AT_INVERTERLCD normal but cannot charge/discharge (no SOC at inverter).Critical
LCD display of LUX-X-96050HCG01 is normal but battery cannot charge or discharge; inverter screen shows no SOC.
CAN communication failure between LUX-X-96050HCG01 and inverter.
Check CAN communication between LUX-X-96050HCG01 and inverter; if connection is good, replace the CAN communication cable. if SOC is still not visible, contact the local distributor.
LUX-X-96050HG01-Lithium-Battery-User-Guide.pdf · page 22WAITING_TO_CONNECTWaiting to Connect (LCD icon).Info
LCD icon lights up to indicate that the battery is waiting to be connected and there is no output at this time. After entering normal working mode, this icon disappears.
Battery has not yet established connection / handshake with the inverter.
Wait for the battery to enter normal working mode; if it persists, check CAN/RS485 communication wiring to the inverter.
LUX-X-96050HG01-Lithium-Battery-User-Guide.pdf · page 20Compiled from official FelicityESS user manuals. Always consult your device manual and a qualified technician before performing repairs.