Siemens SINAMICS S150 - Safe Torque off (STO)

Safety Integrated Extended Functions
6.3 Safe Torque Off (STO)
Safety Integrated
Function Manual, 05/2010, A5E03264275A
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6.3 Safe Torque Off (STO)
In addition to the control options specified under Safety Integrated Basic Functions, "Safe
Torque Off (STO) under Safety Integrated Extended Functions can also be activated via
TM54F or PROFIsafe.
Note
Use of the "Safe Torque Off" (STO) safety function without encoder is only possible with
asynchronous motors.
Functional features of "Safe Torque Off"
The functionality of "Safe Torque Off (STO) is described in the section, "Safety Integrated
Basic Functions".