If the controller is powered on for some time, the pump is in shutdown state, the controller turns off immediately to re-power (time interval of less than 6 seconds), then the pump is at a standstill, because the controller after power failure, CBB capacitor Discharge takes a few seconds (about 6 seconds) time, the chip working voltage is wide, electricity is not discharged when the power again, the chip is still working, remember the status before the power failure.
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