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Machine Design

Controller Replaces Safety Relays

Preventa XPSMC safety controllers can perform the functions of up to 20 different safety relays and provide real-time status and diagnostics of machine-control systems.

The safety controller has a library of certified safety functions for applications that must conform to Category 4 of standard EN 954-1. Other features include user-friendly configuration software which lets users develop safety applications by configuring the predefined and certified safety functions built into the controller. Detailed diagnostics provide an in-depth overview of the status of inputs and outputs and identify any faults and their causes. These diagnostics can be viewed by a PC connected to the controller, or through a PLC, or an HMI. The controllers can also be connected to standard PLCs for diagnostics and other information-gathering applications. The controller has all safety functions built in, resulting in the need to carry fewer individual safety relays. It is available with either 16 or 32 inputs.

Schneider Electric, W6545 Quality Dr., Greenville, WI 54942, (800) 392-8781,

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