Solutions – Safety

The MELSEC WS Safety Controller provides a cost effective way to add a safety controller capability to individual machines, or smaller scale systems. Mitsubishi Electric is proud to announce that the WS is a joint development with SICK AG of Germany, an acknowledged leader in the global machine safety industry. Its compact size insures easy placement in most control cabinets, without adding extra cost. Configuration saves engineering time by using a graphical icon based method, and program development and certification is simplified by the use of safety function blocks. For more complex needs, the WS is also scalable by simply adding additional I/O modules. Finally, integration with conventional control systems is easily achieved with the CC-Link open network connection or Ethernet.

Specifications

	WS Safety Controller
I/O capacity	144 points (single channel)/72 points (dual channel)
Program memory capacity	Up to 255 function blocks
I/O	Modular units (up to 18), single or dual channel
I/O types available	DC safety in & out, safety relay out
Diagnostic capabilities	Internal state monitoring, execution error history
Network connectivity	CC-Link, Ethernet, EFI (direct communication with SICK safety devices)
Safety certifications	IEC 61508 SIL 3, ISO13849-1 PL e (EN 954 Category 4) (source : http://www.mitsubishi-automation.com/)