Figure 6. Stationary area guarding with multiple scanners
Conveyor
Conveyor
Robot
Robot
Press
Interlocked
Gate
Inspection
Station
Safety Light Screen
Interlocked
Gate
SX5
SX5
In addition to the typical considerations for horizontal stationary area guarding listed in example #1:
•
Install multiple SX with a vertical offset height of 100 mm (or more) or use physical shielding to prevent one SX from
interfering with another SX.
•
Be aware of the effect of needle- and cone-shaped fields and eliminate areas of unreliable detection.
•
Eliminate the "shadow effect" and/or use additional safeguarding.
•
Configure the SX for start/restart interlock (manual reset) to ensure that the Scanner does not turn ON its safety
outputs if an individual is momentarily undetected (e.g., climbs up onto the machinery above the plane of the
Protective Field).
•
Configure any perimeter guarding systems (e.g., an interlocked gate or safety light screen) for a manual reset; any
reset switches must comply with the Reset Switch Location Section.
Mobile Area Guarding on Transfer Carts/Trolleys and Automated Guided
Vehicles (AGVs)
On mobile applications, such as transfer carts, the SX monitors the area directly ahead of the cart using both the Warning
and the Safety Zones. If something is detected within the Warning Zone (the green area), the alarm output signals the vehicle
logic to slow the vehicle and sound a horn (or other awareness device). The SX stops the vehicle when something is
detected within the Safety Zone (the red area). If the speed increases or decreases, alternate Zone Sets can be used to
adjust for varying stopping distances.
Figure 7. Mobile area guarding on AGVs
Typical considerations for mobile vehicle guarding (horizontal fields):
SX Safety Laser Scanner
14
www.bannerengineering.com - Tel: + 1 888 373 6767