| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a door control device for an elevator capable of specifying a troubled portion. <P>SOLUTION: The door control device for the elevator includes a speed control part 9 for controlling a speed of a door motor 3 for driving a car door of the elevator, a door motor position detector 6 for detecting a rotational position of the door motor 3, an electric current control part 10 for comparing the speed of the door motor 3 obtained from the door motor position detector 6, with a command speed of the speed control part 9, and for controlling an electric current to output a proper voltage command to an inverter 11, an electric current detector 12 for detecting the electric current output from the inverter 11 to the door motor 3, a fixed voltage command part 13 for outputting a predetermined voltage command value to the inverter 11, a voltage command switching part 14 for switching a connection object connected with the inverter 11, to either of the electric current control part 10 or the fixed voltage command part 13, and an abnormality diagnostic part 15 for detecting and storing an electric current pulsation output from the electric current detector 12. <P>COPYRIGHT: (C)2013,JPO&INPIT |
