The application provides an
emergency control method for a safety door, and relates to the technical field of
rail transit. The method comprises the following steps: S1: judging whether a driving
machine is normally working, and if yes, no operation is performed; otherwise, S2 is performed; S2: marking a lifting control part at an abnormal driving
machine as a first control part, and the other end as a second control part; a controller of the second control part acquires absolute value
encoder readings in real time; S3: judging whether the absolute value
encoder reading change of the second control part is greater than a predetermined threshold; if yes, S4 is performed; otherwise, no operation is performed; and S4: the driving
machine of the second control part works to drive a sliding block to move a predetermined distance. The application has high feasibility. After one side of the motor fails, when a person artificially lifts and lowers the pull
rope on the side of the failure, the state of the pull
rope is acquired, the motor on the other side is correspondingly rotated, the two ends of the safety door pull
rope are synchronously lifted and lowered, only one person is needed to easily perform emergency lifting and lowering control on the failed safety door, and the control efficiency is high.