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Rockwell Automation has released a new networked safe torque off option module that allows safety and non-safety functions to share the same EtherNet/IP network. Designed for the Allen-Bradley PowerFlex 755 and PowerFlex 755T AC drives, this safety option helps to protect personnel and equipment by removing rotational power from the motor without removing power from the drive. This functionality helps to allow for a quick restart after a demand on the safety system.
Compatible with both Allen-Bradley GuardLogix and Compact GuardLogix controllers, the option module allows customers to leverage one IP address for both the safety and control functions, which reduces the number of ports required. The networked safe torque off option module is compliant with industry standards, providing a SIL 3/PLe Safety Integrity Level rating, and can be used for hardwired and networked safe torque off applications.
Rockwell Automation customers reported that having their safety functions integrated over EtherNet/IP has helped to reduce hardware and installation costs, improve productivity, and reduce panel footprints. The networked safe torque off option module has the flexibility to be field-installed when the functionality is required.
Designed for a broad number of applications requiring safety, the option module is suited for most manufacturing and processing industries.
Keywords: Safe Torque Off, Safety Functions, AC drives, ARC Advisory Group.