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Over-voltage at deceleration When the frequency inverter runs at constant speed, DC voltage of the main circuit exceeds this set value. The detected over-voltage value is the same as above
  • Check whether the input voltage is too high;
  • Check whether the bus voltage display is normal;
  • Delay the deceleration time;
  • Check whether the motor is dragged to run by external force in the process of deceleration;
  • Install additional brake unit and brake resistance;


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