Rockwell Automation introduces the next generation of safety relays to their portfolio of machine safety and process safety devices, systems and services.
Comprising of six types of products, the new safety relay range from Rockwell Automation will address most safety related applications. While existing Allen-Bradley Guardmaster safety relays will not become obsolete, customers who wish to simplify their inventory and usage can choose the smaller family of next-generation safety relays.
Rockwell’s new family of safety relays can support a broad range of safety devices for a variety of applications.
The universal input feature allows devices such as safety-interlock switches, emergency-stop switches, pressure-sensitive mats and OSSD devices including safety light curtains to use the same set of terminals. This eliminates the need for a specific safety relay for a specific type of input device.
Simple logic tasks can also be achieved via the single wire safety connection between relays. This simple, one-wire link uses transistor technology and monitoring via dynamic signals, removing the need for dual-channel connection and offers SIL 3, PLe safety rating.
With this logic functionality, applications can be configured to offer flexible ‘AND/OR’ functional control. Other options can be configured for requirements such as regional and global e-stop functions.
Rockwell’s six safety relays include:
- Safety relay with a single dual-channel input and two relay outputs
- Safety relay with a single dual-channel input and three relay outputs (compatible with MSR127)
- Safety relay with two dual-channel inputs and two solid state outputs
- Safety relay with two dual-channel inputs and two relay outputs
- Safety relay output expansion module with four instantaneous relay outputs
- Safety relay output expansion module with four delayed relay outputs configurable for functions as on-delay, off-delay, jogging and multi-timing ranges