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2-sided protection of elevator transport vehicles for air freight containers and pallets

Short description

SICK safety laser scanners monitor the aisle of rail-guided elevator transport vehicles for air freight at the airport in Durban, South Africa.

Task

ICM Airport Technics GmbH in Viernheim, Germany, a member of the Unitechnik Group, specializes in the implementation of manual, semi-automatic and fully automatic transport solutions in and around airports. For one customer, the Dube Tradeport Company at the King Shaka International Airport in Durban, South Africa, ICM was looking for a solution to protect rail-guided ETVs (Elevator Transfer Vehicles). Integrated into an overall material handling solution, the vehicles transport air-freight containers and pallets. With speeds of up to 2.5 m/s and a total weight of nearly seven metric tons, they are potentially hazardous to people and objects in their aisle. The customer needed a solution to eliminate those hazards without impairing the availability and performance of the transport vehicles. SICK successfully provided ICM with a reliable, easily integrated and economical safety solution.

Implementation

SICK safety laser scanners ensure safe operation of automatic air freight transport vehicles

With safety laser scanners (S3000), SICK was able to recommend the optimum safety solution for the problem. With an invisible laser field, the devices monitor the area in front of and behind the vehicle. One scanner is installed in each direction of travel. The safety of all driving situations is ensured thanks to the four configurable warning and protective fields, which can be adjusted according to the current speed in any given situation. Whenever an obstacle is detected, the scanner signals slow down the vehicle to crawling speed and stop it at a specified distance in front of the obstacle. As soon as the obstacle is removed from the aisle, the automatic elevator vehicles continue their transportation run.

Customer benefits

  • Certified safety system meets your safety needs and prevents risks of accidents and liability
  • Flexible programming of monitored fields ensures optimal use of vehicles
  • On-site support for commissioning and servicing

With the SICK safety laser scanners, ICM implemented a safety solution complying with the applicable guidelines and standards. In this application, SICK provided the desired degree of protection, preventing accidents to people in the vicinity and risks of liability for the marketing company and the operator. The operator also benefits from the fact that the vehicles can be operated at optimal speed and transport capacity, since the programmed protective fields adjust to the current situation, ensuring optimal protection at all times. The option of on-site commissioning support and servicing guarantees the maximum availability of the safety technology, ensuring safe operation of the automatic elevator transport vehicles.

  • Following product families can be used
    The scanner for more safety
    • Can be used only in the EFI system network, e.g. with a Flexi Soft safety controller or another safety laser scanner
    • 4 m, 5.5 m or 7 m protective field range
    • Up to 32 switchable field sets
    • Configuration memory integrated in the system plug
    • Measured data output via RS-422
    • Simultaneous monitoring of up to 4 protective fields
    • Contour as reference for vertical applications
    Flexible high-performance - the right protection for any speed
    • 4 m, 5.5 m or 7 m protective field range
    • 8 switchable field sets
    • Configuration memory integrated in the system plug
    • Interface (EFI) for reliable SICK device communication
    • Incremental encoder inputs for speed-dependent field switching
    • Measured data output via RS-422
    • Simultaneous monitoring of up to 4 protective fields
    • Monitoring of the maximum speed of an AGV
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