| 摘要 |
PURPOSE:To conduct adjustment after the assembly of an elevator device accurately and easily by adjusting an inverter in the state that the revolution of a motor is locked during adjustment. CONSTITUTION:In test control, the constant test current of constant frequency is fed from the inverter main circuit 2 side as the revolution of a motor 3 is kept locked by an electromagnetic brake 9, and the unbalance of the test currents, superposition of the DC component and waveform distortion are adjusted or adjustment after trouble repair is performed. A time restriction by the elevation of a passenger cage 7 is removed on the adjustment, motor currents are not changed due to the movement of the position of the passenger cage 7, and measurement in which test frequency is set in an arbitrary frequency region in which the deflection of a pointer for a measuring instrument is eliminated can be performed. |
