The frequency converter light failure does not affect the system continuous operation. After the light fault of the inverter, the inverter will only provide the fault report. The user can find the fault by recording the fault of the touch screen of the inverter. If this kind of fault occurs during system operation, the inverter will not stop immediately. In the state of stop, if there is such a fault, the user can also start operations. But after light fault attack, we it is necessary to adopt corresponding measures, to prevent the failure of expanded, eventually lead to an outage, for example after transformer overheating fault attack, inverter supply first sound alarm, non-stop, if we do not rule out the fault, the continuous operation, when the transformer temperature reaches 150 degrees after the inverter will be the fault as heavy fault handling. The frequency converter's light fault includes analog signal short message, the door opens the light fault and so on.

Classification and treatment of heavy faults

The frequency converter's heavy fault is not the restorer fault. After the onset of heavy fault, the frequency converter will immediately stop the output, and announce the splitter of the input high-voltage switch instruction, and the motor will shut down. The high-voltage switch fault detection can choose the high-voltage switch dynamic characteristic tester. After the attack of the fault, the inverter will supply the sound alarm, and the control system will actively save the fault record. Users can use the "sound alarm reset button" to reset the sound alarm. In order to ensure that the problem will not be enlarged, it is necessary to find the cause of the fault after the recurrence of the fault, and then restart the inverter after the fault is completely eliminated. Heavy faults include system overcurrent, overload, transient stop failure, high voltage loss, uplink fiber communication fault, downlink fiber communication fault and drive fault.