A total of three units, usually starting two units. After jumping the gate, it was like this. I haven't paid attention before. Is it a turn around?
The water pump with frequency conversion is set correctly and will not burn the motor. If there is a problem, the frequency converter will automatically stop running. The frequency converter can change the positive and negative (frequency changer without this function, change the phase sequence)
I have encountered this problem, 1, check the reverse pump outlet single flow valve is damaged2. Check whether the three wires of the motor are in wrong position and reverse when starting
Only trip is not to the frequency converter settings or phase sequence change, if not moved the settings and wiring, most of the reason is the original reversal, you also know that inverter turnover also has water.Check analog positive and negative polarity, inverter settings, and if there is no problem, change the phase sequence.
