This manual explains how to use and operate the Well-Lih request to enter system with STO (Safe Torque Off). This system allows users to enter and exit the safety guarding of ARI robot guarding mid cycle without the robot’s losing position or stopping autorun. This works by de-energizing the motors and drives in the robot while the guarding is open. Absolute encoders always keep the robots current drive position, even when the robot is powered down. This allows the robot to pick up from the previous position where the drives were de-energized and continue the cycle.

Any 2019+ robot equipped with absolute encoders and STO can easily add on this ARI request to enter system. Please contact your sales representative or email

2020 Request to Enter System with STO-30014-V3

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