MANUFACTURING – INDUTRIAL ROBOTIC & AUTOMATION CALCULATOR
Cobot Safety Stopping
A precise tool.
What is the Cobot Safety Stopping & How does it work?
Collaborative robots (cobots) share workspace with humans, requiring rapid and predictable stopping to prevent injuries. The stopping distance depends on the robot’s speed, the system’s reaction time, and the deceleration capability of the safety controller. Regulatory guidelines such as ISO/TS 15066 define safe speed limits and required safety zones. By calculating the total stopping distance, engineers can design workcells that maintain adequate separation between moving parts and personnel. The stopping distance is the sum of the distance traveled during the reaction interval and the braking distance once the safety stop is engaged. Accurate estimation ensures that safety‑rated monitored stop (SRMS) or power and force limiting (PFL) functions are correctly sized.
d_{total}=vcdot t_{r}+frac{v^{2}}{2a}
v = robot speed (m/s)
t_{r} = reaction time (s)
a = deceleration (m/s²)
d_{total} = stopping distance (m)
t_{r} = reaction time (s)
a = deceleration (m/s²)
d_{total} = stopping distance (m)
Parameters
Result
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Frequently Asked Questions
What factors determine the stopping distance of a cobot?
The stopping distance depends on the robot’s speed, system reaction time, and deceleration capability of the safety controller.
How do regulatory guidelines like ISO/TS 15066 impact cobot design?
These guidelines define safe speed limits and required safety zones, helping engineers design workcells with adequate separation between moving parts and personnel.
Why is rapid stopping important for collaborative robots?
Rapid stopping is crucial to prevent injuries when cobots share workspace with humans, ensuring a safer environment.
Can this calculator be used for all types of industrial robots?
While the principles are similar, specific calculations may vary based on the robot’s design and operating conditions. It is best suited for collaborative robots (cobots) that share workspace with humans.
What is the purpose of calculating total stopping distance in a workcell?
Calculating the total stopping distance helps engineers design workcells that maintain adequate separation between moving parts and personnel, ensuring compliance with safety standards.
Results are for informational purposes only and do not constitute professional advice.