Sensors & Transducers


Rockwell Automation safety light curtain for cost effective performance

April 2014 Sensors & Transducers

Rockwell Automation’s range of Allen-Bradley Guardmaster GuardShield safety light curtains provide end users with improved functionality, configuration flexibility and installation.

The GuardShield Safe 4 safety light curtain is equipped with an integrated laser alignment system, allowing for simplified setup and installation. Users can activate or deactivate two visible laser elements located at the top and bottom by touching the transmitting element. GuardShield Safe 4 is a self-contained, optically synchronised, transmitter and receiver safety pair. Available in both 14 mm and 30 mm resolutions, it is offered in a number of protective heights ranging from 120-1920 mm, in increments of 120 mm.

The GuardShield Cascadeable Micro 400 safety light curtain is a Type 4, ‘three-box’ system designed for small assembly machines in ambient operating environments where mounting space is limited. Offered in 14 and 30 mm resolutions, this SIL 3-rated safety system offers expanded functionality through the required MSR42 multifunction safety module. In this configuration, the Micro 400 safety light curtain improves flexibility for applications requiring multiple light curtains or other safety devices, such as safety laser scanners, E-Stops or safety switches.

The GuardShield Safe 4 PAC light curtain is a self-contained, optically synchronised, ‘two-box’ system offering an expanded operating range. Unlike the standard GuardShield Safe 4 safety light curtain, the GuardShield Safe 4 PAC is available as a two-segment or three-segment system with an operating range of 30 metres. Available in a two-segment pair with a 600 mm protected height or a three-segment pair with a 840 mm protected height, these PAC light curtains can be used as an opto-electronic fence or for access guarding at the entry or exit end of a machine process. Like the standard unit, the GuardShield Safe 4 PAC safety light curtain also includes an integrated laser alignment system and can be connected to the MSR42 multi­function safety relay for improved functionality.

For more information contact Christo Buys, Rockwell Automation, +27 (0)11 654 9700, cbuys@ra.rockwell.com, www.rockwellautomation.co.za


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