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APIC_AT_IL_Safety-Solution_Bi-directional-AGV-lock_wl_1400x400_V2

Bidirectional AGV gate for access guarding

From risk assessment to validation: our safety solutions provide complete solutions for your systems. Our expert teams’ innovative safety concepts ensure efficient material flow, gapless safety and high availability of your system. Even in applications where classic concepts are pushed to their limits. Always with legal certainty, CE certification and compliance with standards. This makes implementation particularly easy for you.
Highly automated and interlinked production systems often require a flexible material flow between the individual manufacturing cells. In such cases, automated guided vehicles (AGVs) take over material transport. The AGVs must reliably enter and exit at the transitions between the traffic area and cell.
At the same time, access to the cell must be guarded. For the safety concept, this requires holistic consideration of all process steps: for example, the size and shape of the load change as the production process progresses, and stopping of the AGV at the transition between the traffic area and danger zone, which is triggered by the on-board protective devices, must also be taken into account.
Our safety solution meets precisely these requirements: as a bidirectional AGV gate, it guards access to the danger zone fully and without gaps. The transportation paths of the AGVs are not restricted, and there are no additional costs for controlling moving protective devices or fixed hard guards.
APIC_AT_IL_Safety Solution_Bi-directional AGV lock_wl

Requirement:

The extensive danger zone must be guarded against access by persons. At the same time, AGVs with different loads must be able to enter and exit the danger zone. The transportation path of the AGV inside the production cell must not be restricted by the access guarding system.

Solution: 

A safety gate has optoelectronic safety sensors on three sides. This allows the AGV’s transportation path toward the danger zone to be freely selected. Safety radar sensors check whether persons are present within the gate area. After a corresponding release has been given, the AGV can continue its journey.

Operating principle:

After interruption and subsequent release of the multiple light beam safety device on the access side, radar sensors monitor the gate area for the presence of people. Only when no person has been detected in the interlock area is the release given for the AGV to continue its journey (entry) or to prepare for the next AGV (exit). The system monitors whether the processes are being performed correctly in terms of safety, and also enables a temporary stop in the adjacent protective fields. In addition, release signals for automated movements are also provided.

Advantages for you

  • Gapless safety during the entire cycle without restricting parts transport (for loads of any shape and size)
  • Optimum utilization of the system through interruption-free operation, even when the AGV is entering and exiting
  • Free routing of the AGV’s transportation path toward the danger zone because no hard guards are necessary
  • No operator action or visual checking of the gate area necessary
IGRA_SafetySolutions_Pyramid_en_500x700

System components and safety parameters

  Safety sensors: MLD 500 multiple light beam
safety device, RSL 400 safety laser scanner,
LBK safety radar system
System control: MSI 400 safety control
Leuze safety program
PL e in accordance with EN ISO 13849-1, SILCL 3 in accordance with IEC 62061
2-channel safety output

Bidirektionale FTS-Schleuse zur Zugangssicherung
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Safety Solutions - Flyer (PDF, ~0.8 MB)
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