Safety Module STO (Safe Torque Off) is an add-on for item Controllers. It ensures that, when at rest, a Motor does not produce any effective torque. When actuated, e.g. by an emergency shutdown system or when a door is opened, it switches off the system safely.
The Module is slotted into one of the expansion slots. All applicable safety standards are reliably met, including category 4 / PL e to EN ISO 13849-1 and SIL CL 3 to EN 62061.