![]() ![]() Aligning the optical axis during installation is also incredibly easy. This gives them an advantage over light curtains in terms of available installation locations. They can be installed anywhere and for any protection zone. Safety laser scanners are reflective sensors that use laser light. How are safety laser scanners different from other safety devices? Safety laser scanners can also be used for collision prevention with rail-guided vehicles (RGV) and forklifts. The scanner detects nearby workers to prevent collisions. Safety laser scanners can be used in place of light curtains, which need pillars on both sides of the entry point, to detect access.Ĭollision prevention is a function used when the safety laser scanner is installed on an automated guided vehicle (AGV). ![]() For example, area protection may involve checking for any remaining operators and preventing the machine from being restarted if detected.įor access protection, safety laser scanners are commonly installed vertically to detect access into a hazardous zone and stops machine operation if entry is detected. These functions are useful safeguards for automated guided vehicles (AGV) and collaborative robots (cobots).Ī safety laser scanner serves three major purposes: area protection, access protection, and collision prevention.įor area protection, the safety laser scanner is installed horizontally to monitor a hazardous zone. This prevents machine operation with an unintended protection zone selected. KEYENCE’s safety laser scanners are equipped with a function that monitors the bank switching order and triggers an error when a bank switching command is issued out of order. Models that can be used to register up to 32 banks allow configuration of one protection zone and two warning zones for each bank. ![]() This is called the bank switching function. Safety laser scanners are capable of handling multiple banks, and users can switch between these banks using external signals to select the most suitable protection zone at that particular time. “Bank” refers to the combination of a protection zone and a warning zone. Three levels of control can be set up through selective use of protection zones and warning zones. With a maximum of 32 configurable banks, users can select the most appropriate zone by using external signals. Multiple protection and warning zones can be set up for each bank. On the other hand, safety laser scanners detect any operators in the protection zone without contact, making them immune to damage from falling objects and people stepping on top.īenefit 2 of Safety Laser Scanners: Flexible installation layout and muting area setup The protection range is also limited to the shape of the safety mat, leaving some areas undetected. Using multiple safety laser scanners is possible to eliminate any blind spots, ensuring complete detection in any area of any size.Īs it relates to longevity and failure, the very nature of safety mats makes them prone to internal wire breakage caused by items being dropped on them and people stepping on them. Safety laser scanners are also compact, making them a viable alternative in places where safety light curtains cannot be used. The protection zone can also be changed according to the layout of the machinery. With a safety laser scanner, there is no limitation to the shape of the protection zone so long as the shape does not exceed the detection range. The non-contact detection of a safety laser scanner also minimizes the risk of breakage from falling objects and impact, another common problem with safety mats. Lack of customization is a common issue with safety mats. Safety laser scanners allow for a 100% customizable protection zone, even in complex areas.
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