Rockwell Automation 21G PowerFlex 750 Series Safe Torque Off - Manual (Page 13)

Rockwell Automation Publication 750-UM002F-EN-P - July 2013 13
Safety Concept Chapter 2
Considerations for Safety
Ratings The achievable safety rating of an application using the safety option installed in
PowerFlex 750-Series drives is dependent upon many factors, drive options, and
the type of motor.
For applications that rely on the immediate removal of power to the actuator,
resulting in an uncontrolled coast to stop, a safety rating up to and including SIL
CL3, PL e, and Category 3 can be achieved.
Contact Information if Safety
Option Failure Occurs If you experience a failure with any safety-certified device, contact your local
Rockwell Automation distributor. With this contact, you can:
• return the device to Rockwell Automation so the failure is appropriately
logged for the catalog number affected and a record is made of the failure.
• request a failure analysis (if necessary) to determine the probable cause of
the failure.