The TM54F module reduces overall machine building and commissioning costs by eliminating the need for hardwired contactors, while maintaining CAT 3/SIL 2 safety standards. Emergency stop buttons, light curtains and other safety devices are connected directly to the TM54F. The module connects via the Drive-CLiQ backplane connection of the drive, eliminating the need for an external network. The TM54F is well-suited for uncomplicated machines implementing a safety system, since a safety PLC is not required.Siemens Energy & Automation Inc.www.sinamics.com800.964.4114