How to distinguish whether the failure of the new Shida inverter is a light fault or a major fault

Create Date: 2024-8-30 12:03:23|Source: Xinshida/STEP

1. How to distinguish between heavy and light faults?

How to distinguish whether the failure of the new Shida inverter is a light fault or a major fault

When the fault is light, the system announces the alarm signal, and the fault indicator flashes. When a heavy fault occurs, the system announces the fault indication, and the fault indicator light is always on. Announce the instructions to break the high voltage and close the prohibition together, and recall the fault information and the high voltage breaking instructions. If the heavy fault condition is not eliminated, the fault indication and high-voltage breaking instruction are still useful.

2. What are the minor faults?

Minor faults include: transformer over-temperature alarm, cabinet temperature over-temperature alarm, cabinet door opening, unit bypass, the system does not recall the light fault, only the fault indication, and the alarm is automatically eliminated after the fault disappears. During the operation of the inverter, there is a light fault alarm, and the system will not be shut down. When the machine stops, there is a slight fault alarm, and the inverter can continue to operate.

3. What are the details of major faults?

When the following faults occur in the system, they will be handled according to the heavy fault, and the type of heavy fault will be displayed in the upper left corner of the monitor: external fault, transformer overheating, cabinet temperature overheating, unit fault, inverter overcurrent, high-voltage power loss, interface board failure, controller non-communication, interface board non-communication, motor overload, parameter fault, and main control board failure. Unit faults include: fuse fault, unit overheating, drive fault, fiber fiber fault, and unit overvoltage. External faults must first be exempted from high-voltage disconnection (cabinet door buttons or external contacts) and then reset the system to restore the system to normal conditions; After a major fault occurs other than an external fault, a direct system reset can restore the system to a normal state, but the cause of the fault must be found before powering on again. After a unit fault occurs, the unit condition can only be detected if the high-voltage power supply is applied again. If the fault is difficult to analyze and it is not possible to confirm whether the high voltage can be applied a second time, please consult the manufacturer. Note: Do not rush to power on the second time before finding out the cause of the fault, otherwise the inverter may be severely damaged

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