Safe Torque Off

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The Safe Torque Off (STO) is an electronic signal used in industrial motor controllers for safety reasons.

Description[edit]

The STO function is the most common and basic drive-integrated safety function. It ensures that no torque-generating energy can continue to act upon a motor and prevents unintentional starting.[1]

External links[edit]

References[edit]

  1. ^ "STO Definition by Siemens". Retrieved 29 June 2016.