FAQ

Analysis：The d-axis voltage is less than 60% of the effective value of the grid voltage, or the phase sequence is connected incorrectly.

Solution：Wait for the grid voltage to return to normal. Or adjust the order of three-phase connection

Analysis：AC slave contactor failure reported three consecutive times

Solution：Contact after-sales personnel to replace the contactor with a new one

Analysis：Three consecutive reports of AC main contactor failure.

Solution：Contact after-sales personnel to replace the contactor with a new one

Analysis：Three consecutive reports of DC auxiliary contactor failure.

Solution：Contact after-sales personnel to replace the contactor with a new one

Analysis：Three consecutive reports of DC main contactor failure.

Solution：Contact after-sales personnel to replace the contactor with a new one

Analysis：Battery bus voltage too high

Solution：Check the bus voltage in the operating data, and run PCS again when it drops below 200V.

Analysis：When parallel or connecting to bypass cabinet, the communication resistance value is incorrect or the wiring is incorrect. In the case of parallel operation, the parallel address settings are duplicated.

Solution：Check if the wiring of the CANB interface is correct. In the event of a power outage, the normal communication resistance range for measuring the resistance value of CANB should be 60-120 ohms. The communication resistance value can be changed by adjusting the CANB DIP switch on the control board. In the case of parallel operation, set the parallel addresses in order based on the number of parallel operations, from 1 to 4.