| 摘要 |
PURPOSE:To grasp the operating status during inverter operation by providing the functions to indicate information about the speed and load of the inverter and the control contents of said inverter. CONSTITUTION:An air conditioner controller 1 transmits frequency command and operation command to an inverter 2 and starts operation by way of a circuit 3. At that time, an operating status indication device 4 is mounted on an inverter controller section 2 so as to indicate each operating status. In other words, LED displays the state when a speed condition is attained as specified and an acceleration speed is attained as instructed, the state when excess current reduces operation speed, the state when the operation is suspended or halted in emergency, the state when the current is rising or falling, the state when command frequency is transmitted from the controller and the state when the actual frequency is output. This construction makes it possible to pinpoint a faulty point with accuracy and reduce resultant inspection time so as to clarify the operating status of the inverter during inverter test run or the like. |
