FUNCTIONAL SAFETY
Safety that keeps pace
Modern motion control systems perform increasingly demanding motion tasks. With every additional axis, the requirements for dynamics, precision, and functional safety increase.
Whether automated guided vehicles, cobots, or humanoid robots – wherever machines work along- side people or other machines, motion must remain under control even in the event of a fault. The requirements vary depending on the appli- cation. For many industrial systems, basic safety functions such as Safe Torque Off (STO) or Safe Brake Control (SBC) are sufficient. They ensure that a drive is safely disabled or a brake is actuated in a controlled manner in the event of a fault. As autonomy and dynamics increase, however, so do the demands placed on motion control. Mod- ern robotic systems must not only stop motion safely, but in some cases also monitor it safely during operation. This is where safe motion func- tions such as Safe Limited Speed (SLS) and Safe Operating Stop (SOS) come into play. Safety-related communication is often handled via Fail Safe over EtherCAT (FSoE). “From humanoid and quadruped robots to mo- bile manipulators, these systems herald significant advances for society and industry,” says maxon robotics expert Mario Mauerer. At the same time, sensors, computing power, and drive technology are becoming increasingly integrated – and the re- quirements for functional safety are continuing to evolve with them. The two examples on the right show how maxon supports customers across this spectrum – from Basic Functional Safety to advanced Safe Motion solutions.
IDX 70 M Safe Basic Functional Safety
Compact integrated drive unit for mobile robotics, intralogistics, and industrial automation.
Safety — Safe Torque Off (STO) — Safe Brake Control (SBC) Technical highlights — Up to 9.4 Nm peak torque — Up to 960 W power — IP65 protection rating
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