Detecting the Status of Hoist Carriage on Dockyard Cranes via Rugged Inductive Sensors
Container-handling cranes in a few busy seaports operate function the clock. Sensors on every hoist carriage figure out its status respecting the crane structure and protects it against travelling outside preset limits. Mechanical play within the hoist carriage allows a small quantity of lateral drift when it travels alongside the crane shape; good enough sensing distance is necessary to prevent the sensor colliding with the crane shape.
Inductive sensors are completely appropriate for this application. They are equipped with a 20mm detecting distance that minimizes the risk of collisions. These sensors are Available as IP68- or IP69K-rated units and Communicate with the crane’s control system through a PNP changeover interface, replacing the existing two-wire arrangement; a flexible PUR-sheathed cable supplies the electrical connection. The new sensor is equipped with an integral S12 connector, providing simple removal and replacement during maintenance.
A step improvement of operational performance happened obviously after the installation of these new units. These sensors supply reliable sensing of every hoist’s function with no collisions since the date of installation.
The clients have reported a significant reduction in crane downtime and an associated reduction in expenditure on replacement sensors.
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