Cause : Watchdog reset - A "watchdog reset" typically occurs when a microcontroller-based system, like an inverter, fails to respond to a periodic "watchdog" signal. This signal acts as a monitor to ensure that the system is running properly, and if the system fails to respond within a predefined time frame, it triggers a reset to prevent the system from getting stuck in an unrecoverable state.
Here's how to address this issue:
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Check Power Supply: Ensure that the power supply to the inverter is stable and within the specified voltage and frequency range. Fluctuations or interruptions in the power supply can cause the microcontroller to malfunction, leading to a watchdog reset.
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Verify Hardware Connections: Loose or faulty connections within the inverter system can lead to intermittent faults, including watchdog resets. Inspect all hardware connections, including cables, connectors, and terminal blocks, and ensure they are secure and properly seated.