| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a display method which enables calculation and display of power consumption and regenerative electric power of all the electric injection molding machine including loss electric power in a converter or an inverter. <P>SOLUTION: In the electric injection molding machine, the electric power display method has a PWM converter 2 which converts a three-phase AC voltage supplied from a three-phase AC power source side 3 into a DC voltage to supply to servo amplifiers SA1, SA2, etc., servo motors AM1, SM2, etc., for driving a screw, a mold opening/closing device, and an ejector device or the like by the servo amplifiers are driven, and the regenerative electric power regenerated from the servo amplifiers by the PWM converter is returned to the three-phase AC power source side. The electric power data includes the power consumption and the regenerative electric power of the electric injection molding machine is calculated and displayed from a voltage value and a current value between the three-phase AC power source side 3 and the PWM converter 2. An electric energy obtained by integrating the electric power data including a reactive electric power and a power factor. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
