Operation confirmation device and operation confirmation method for electric actuator for emergency stop device

Abstract

Provided is an operation confirmation device for an electric actuator for an emergency stop device that can improve maintainability of an electric device portion. The operation confirmation device for the electric actuator for the emergency stop device confirms operation of an electric actuator (). The electric actuator actuates a drive mechanism that drives the elevator emergency stop device, and includes a movable element () mechanically connected to the drive mechanism, an electromagnet () facing the movable element, and a mechanism portion () configured to convert rotation of a motor () into linear movement of the electromagnet. The operation confirmation device includes: a position detector () configured to detect a position of the movable element; and a controller () configured to detect a failure of the motor based on a position detection signal from the position detector. The controller issues a command to rotate the motor during standby of the electric actuator, and then detects the failure of the motor based on the position detection signal.