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Selection Criteria
Technology Overview
Safedge Pressure Sensitive Safety Edges
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Features/Benefits
Pressure sensitive safety edges are flexible strips that can be mounted to the edge of a moving part—such as a machine table or powered door—that poses a crushing or shearing risk. Contact of the edge with an object or personnel switches off the machine hazard. Safety edges are a cost-effective solution for constant safety monitoring in smaller areas, especially those applications requiring physical flexibility and a tight turn radius. Rated to Category 3, safety edges do not develop ‘dead spots’ like some other pressure-sensitive safety offerings. They are also easy to install and maintain, and can withstand high pressure washdowns, making them suitable for a wide range of applications and environments. Multiple profile sizes and the availability of custom edge systems also lend to a high degree of application flexibility. It is important to note that Safedge requires a dedicated safety relay for monitoring and control, which can be connected to other safety systems.
Applications
- Sliding doors
- Garage doors
- Pinch points
Common Misapplications
- Submersible applications
- Exposure to volatile chemicals (that can damage the rubber profile)
- Applications where physical contact can injure personnel
MatGuard Pressure Sensitive Safety Mats
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Features/Benefits
Pressure sensitive safety mats provide constant guarding and monitoring of a floor area around a machine; 66 lbs. or more of pressure on the mat (e.g. an operator’s footstep) causes the mat controller unit to switch off power to the hazard. Like safety edges, MatGuard safety mats are easy to apply and maintain, can withstand high pressure washdowns and are not susceptible to dead spots. An ideal solution for relatively small areas. MatGuard products also offer a high degree of application flexibility, offering reversible mats; direct micro quick connectivity to controllers; simple connection to standard and DeviceNet Safety I/O blocks; custom system configurations and quick-delivery standard sizes. However, mats can be damaged by dropped objects, such as tool dies, and pose a potential trip hazard if trim is not used.
Applications
- Work cells
- Area detection
Common Misapplications
- Uneven floors
- Lack or improper use of uniting trim
- Presence of volatile chemicals
SafeZone Multizone Safety Laser Scanner
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Features/Benefits
The SafeZone multizone safety laser scanner is an opto-electronic device that creates a user-configurable scanning field with multiple safety zones. If a person or object enters the warning field, the SafeZone scanner switches a single output that can be used to initiate a warning signal, such as an optical or acoustic alarm. If the inner protective field is breached, the scanner switches two independent safety outputs initiating a machine stop signal to halt dangerous machine motion. Offering warning fields up to a 49 meter radius, the SafeZone multizone is easy to install—either horizontally or vertically—and requires no dedicated controller for operation. Suited for Category 3, SIL2 applications, the scanner is easily interfaced with other safety systems and the easy-to-use configuration software allows for customization of the field shape.
Applications
- Work Cells
- Robot Cells
- Stationary or mobile application
- Rotary and index tables
- Moving automated vehicles (AGVs)
- Infeed machinery
- Overhead cranes
Common Misapplications
- Oil, mist, dust, or steam environments
- Outdoor applications
- Extreme temperatures