Restart of variable frequency equipment after power loss
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As the title suggests, after a power outage, the variable frequency pump needs to be restarted. If started directly and then the variable frequency output is increased, the pump will not rotate ； At this point, stop the pump and hold down the stop button for a while; once the pump is started again, it will work normally. What is the reason for this? Why does it function properly after being held down for a certain period of time? I’m seeking answers from experts in electrical engineering.
Reversing the incorrect command is equivalent to resetting to zero.
When the circuit breaker is turned off directly, the data inside the inverter is usually reset
Under what circumstances is it necessary to reset the data? It’s definitely impossible to start without resetting, right?
Is this a characteristic of frequency converters – that in the event of a sudden power loss during use, it is necessary to reset them?