Safety radar system
Safe radar system LBK ISC
Reliable area monitoring in harsh environments and restart protection / up to PL d
Highlights
Reliable operation under demanding environmental conditions
The radar principle is resistant to environmental influences such as dirt, dust, sawdust, smoke, oil, humidity and light. This guarantees reliable operation of the machine even under demanding environmental conditions and avoids unnecessary shutdown.
Function
They monitor the protected area for access by and the presence of persons. Even persons who are standing still are not really ‘static’, and are therefore detected reliably by the sensor.
The 3D radar principle allows areas on steps, pedestals and behind non-metallic shadowing to be monitored as well.
Static objects permitted in protected area
The radar technology reacts sensitively to movements. However, static objects in the monitored area do not cause the safety signal to switch off. Static objects such as pallets, material containers and tool trays are therefore allowed to be placed in the protected area.
Simple and flexible system design
To guard larger areas, a controller evaluates up to 6 sensors. With 4 channel configurations per controller, up to 24 sensors can be used in one application. The system parameters can be simply adapted to the application using the LBK Designer configuration software.
To enable integration into safe fieldbus systems, controllers with PROFIsafe and FSoE interfaces are available. Thus, detailed status information relating to the system can also be queried.
Application
Access guarding at material transfer station
Requirement:
The robot cell is fed automatically. The material is loaded onto the conveyor line, e.g. using a forklift truck, and then transported into the cell. Access to the cell must be safeguarded. To guarantee optimum capacity utilization of the robot cell, the safety concept must also allow uninterrupted operation of the cell during loading.
Solution:
The loading area of the conveyor line is guarded at both the feed and outfeed side by multiple light beam safety devices. The area between the photoelectric sensors is monitored for the presence of persons by safety radar sensors.
Monitoring of hidden areas in machines
Requirement:
The automatic machining process may only start when the machine openings are closed and nobody is inside. The mechanical processing should not impair the safety function.
Solution:
The radar sensor placed in the processing area reliably detects people even in harsh environments. Usually combined with safety proximity sensors on machine doors and a safety controller, a restart is prevented if the monitoring area is not ‘free’ and the machines are not ‘closed’.
Highly robust transportation path safeguarding in diffuse environments
Requirement:
Safeguarding and detection of persons is to be ensured in open areas or environments with reflective surfaces along the transportation routes of transfer wagons, AGVs or cranes.
Solution:
The LBK radar system’s sensors monitor the transportation route via adjustable lobes with warning and protective fields without any erroneous switching caused by the environment or ambient light, because it only detects people.
Guarding of hazardous areas in harsh environments
Requirement:
The hazardous working range of the machine is to be guarded against entry by and the presence of persons. Safe operation and high availability must also be guaranteed under harsh ambient conditions – such as dirt, welding sparks, sawdust or humidity.
Solution:
The LBK 3D safety radar system detects movements in the monitored area and operates reliably even under harsh environmental conditions. Furthermore, the radar technology allows the presence of static objects in the monitored area.
Restart protection and monitoring of hidden areas
Requirement:
To prevent danger, the process may only be restarted once it has been ensured that no person is present in the working range or in the hidden area.
Solution:
The LBK 3D safety radar system monitors the presence of persons in the protected area and operates reliably even under harsh environmental conditions. Furthermore, the radar technology allows the presence of static objects in the monitored area.
Article list
- Shape of the detection fields: asymm. conical/square
- Shape of the detection fields: asymm. conical/square