Troubleshooting & Config

Error code lookup

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BrandCode

Describe the fault

Configuration assistant

Scenario

SettingRecommended rangeWhyTrade-off

Battery typeLithium — the protocol matching the battery brandEnables CAN/RS485 BMS communication so the inverter follows the BMS state of charge and limits.A wrong protocol blocks communication and can trigger low DC bus faults.

Battery capacity (Ah)Nameplate Ah of the connected bankSets the state-of-charge baseline and the charge/discharge current limits.Overstated capacity hides a low state of charge; understated capacity caps charge current.

Max charge currentRoughly 0.3–0.5C of the bank capacityGentle enough to keep cells balanced and within temperature.A low current charges slowly; too high can trip BMS protection.

Shutdown / low SOC15–20%, following the battery datasheetLeaves a reserve for balancing and protects cycle life.A high floor reduces usable backup capacity.

Guidance only — menu names and safe ranges vary by firmware and model. Verify every setting against the inverter and battery manuals before changing it.

Prefer a guided path? Start with the Load Calculator, then move to the System Sizer.