Rockwell Automation Publication 2198-UM004A-EN-P - October 2019 375
Chapter 13
Kinetix 5100 Safe Torque Off (STO) Feature
The 2198-Exxxx-ERS servo drives are equipped for hardwired Safe Torque Off
(STO). The hardwired STO function meets the requirements of Performance
Level d (PLd) and safety category 3 (CAT 3) per ISO 13849-1 and SIL 2 per
IEC 61508, IEC 61800-5-2 and IEC 62061.
The 2198-Exxxx-ERS servo drives use the STO connector for wiring external
safety devices and cascading hardwired safety connections from one drive to
another.
Certification
The TÜV Rheinland group has approved 2198-Exxxx-ERS servo drives with
hardwired safe torque-off for use in safety-related applications up to
ISO 13849-1, Performance Level d (PL d) and Category 3, SIL CL 2 per
IEC 61508, IEC 61800-5-2, and IEC 62061, in which removing the motion
producing power is considered to be the safe state.
For product certifications currently available from Rockwell Automation, go to
website rok.auto/certifications
.
Topic Page
Certification 375
Description of Operation 377
Average Frequency of a Dangerous Failure per Hour 381
Safe Torque Off Connector Data 382
Wire the Safe Torque Off Circuit 383
Safe Torque Off Feature 384
Safe Torque Off Specifications 385
Safe Torque Off Wiring Diagrams 386
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