Power off the device (turn off the AC switch and DC switch, and wait for a period specified on the device safety warning label), and then perform the following operations: Check whether the common DC bus is short-circuited. If not, turn on the AC switch and DC switch, and restart the AC soft-start circuit. If the fault persists, contact your vendor or technical support.
Power off the device (turn off the AC switch and DC switch, and wait for a period specified on the device safety warning label), and then perform the following operations: Check whether the common DC bus is short-circuited. If not, turn on the AC switch and DC switch, and restart the AC soft-start circuit. If the fault persists, contact your vendor or technical support.