FAQ

Analysis：The battery current is greater than the upper limit of the AC output current.

Solution：Check the maximum discharge current of the battery and adjust the max current discharge value in the protect parameters

Analysis：The actual lowest unit voltage of the battery is lower than the undervoltage fault value/the actual highest unit voltage of the battery is higher than the overvoltage fault value. The number of battery units is set incorrectly, resulting in incorrect average voltage of battery units calculated by HPS.

Solution：Check and adjust the protect parameters. If this fault still occurs, please contact after-sales personnel for guidance and adjustment.

Analysis：Lost communication with BMS. If it is a battery from another brand, it may be caused by incompatibility with the BMS protocol..

Solution：Check if the wiring of the canA interface is normal. Measure the resistance value between CANA interface H and L in the case of power outage. The normal resistance range is 60-120 ohms. If the resistance value is incorrect, the resistance value can be changed by adjusting the CANA DIP switch.

Analysis：The BMS system itself has a malfunction.

Solution：Contact the battery manufacturer to troubleshoot the BMS system

Analysis：The inductance of the inverter exceeds 1.15 times the protection current (30K optimized version) by 1 time.

Solution：Reduce the load, thereby reducing the current in the inductor of the inverter

Analysis：The active power of a certain phase is greater than 1.3 times, 1.2 times, and 1.1 times the limit value.

Solution：Reduce load

Analysis：Grid frequency over frequency/grid frequency under frequency.

Solution：Check if the frequency setting in the protection parameters is correct.Waiting for the grid frequency to be normal