Elevator leveling sensor switch Mitsubishi YG-30A YG-30B elevator Photoelectric induction switch parts

YG-30A and YG-30B are level sensors for Mitsubishi elevators, used in the elevator leveling system to ensure that the elevator car is level when stopping at a floor, enhancing passenger comfort and safety. The YG-30A is a normally open leveling photoelectric switch, while the YG-30B is a normally closed permanent magnet inductor. Here are their product functions:

Precise Leveling Control: Installed between the elevator car and the hoistway, these sensors can precisely detect the leveling signals or magnetic strips in the hoistway when the elevator approaches the floor leveling position. In conjunction with the elevator control system, they enable the elevator to stop accurately at the floor leveling position, ensuring that the elevator doors are flush with the floor, facilitating passenger entry and exit, with errors generally controlled within a small range.

Auxiliary Re-leveling Function: In situations where the elevator experiences minor leveling issues due to changes in load, the YG-30A and YG-30B sensors can monitor the elevator's position in real-time. When leveling issues occur, they feedback signals to the control system, prompting the elevator to make re-leveling adjustments and return the elevator car to the correct leveling position, thereby improving the comfort and safety of the elevator's operation.

Elevator Operation Status Monitoring: During the elevator's operation, these sensors continuously send signals to the control system, indirectly reflecting information such as the elevator's speed and direction. The control system can determine whether the elevator is operating normally based on these signals. If the sensor signals are abnormal, it can trigger safety protection mechanisms in a timely manner, stopping the elevator's operation to prevent accidents.

Collaboration with Other Systems: These sensors work closely with the elevator's door machine control system and car control system. For example, when the leveling signal accurately arrives, the sensors will notify the door machine control system to open the elevator doors; when the elevator is ready to depart, they will collaborate with the car control system to ensure that the elevator starts smoothly in a leveled state, ensuring the coordination and reliability of the overall elevator operation.

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