Robot Safety — Interlocked Gate (Whole-Body Access)
Interlocked Gate (Whole-Body Access) calculation per the machinery-safety standards (ISO 13855/13857, ISO 10218, ISO/TS 15066).
A robot doesn't stop when the gate opens — it stops when its inertia is spent. If a person can cross the cell faster than the run-down, the interlock must LOCK until standstill (guard locking), the detail that separates a compliant cell from a fast-looking one.
Formula
Note: Safety calculations here are layout-planning aids ONLY. The legally required values must come from the cited standards' full tables and a documented risk assessment by a qualified person.
Interlocked Gate (Whole-Body Access) calculation per the machinery-safety standards (ISO 13855/13857, ISO 10218, ISO/TS 15066). A free industrial robot kinematics & cell design tool — no sign-up, no upload, instant results in your browser.
About Robot Safety — Interlocked Gate (Whole-Body Access)
Robot Safety — Interlocked Gate (Whole-Body Access) computes the governing relationship t_reach = distance / 1.6 m/s vs hazard run-down time live as you type. A robot doesn't stop when the gate opens — it stops when its inertia is spent. If a person can cross the cell faster than the run-down, the interlock must LOCK until standstill (guard locking), the detail that separates a compliant cell from a fast-looking one. Defaults are pre-filled with realistic values for this exact scenario, and the worked example substitutes your numbers step by step so the math is never a black box.
How to use Robot Safety — Interlocked Gate (Whole-Body Access)
- 1Enter your values — Hazard run-down time, Walking distance gate→hazard (sensible defaults are pre-filled).
- 2Read the live results: Time to reach hazard, Margin.
- 3Check the "with your numbers" line to see t_reach = distance / 1.6 m/s vs hazard run-down time substituted step by step.
- 4Adjust inputs until the scenario matches yours, then copy or share the result.
Why use Robot Safety — Interlocked Gate (Whole-Body Access)?
- ✓Instant, free and private — every calculation runs client-side in your browser; nothing is uploaded
- ✓Built on the stated formula t_reach = distance / 1.6 m/s vs hazard run-down time with authoritative sources cited on the page (ISO 13855 — Positioning of safeguards w.r.t. approach speeds; ISO 13857 — Safety distances (upper/lower limbs); ISO/TS 15066 — Collaborative robots: power & force limiting)
- ✓A robot doesn't stop when the gate opens — it stops when its inertia is spent.
- ✓SI ⇄ Imperial toggle converts your inputs in place, so you can work in the units your drawings use
Frequently asked questions
What formula does the robot safety — interlocked gate (whole-body access) use?+
It evaluates t_reach = distance / 1.6 m/s vs hazard run-down time, exactly as published. Sources: ISO 13855 — Positioning of safeguards w.r.t. approach speeds; ISO 13857 — Safety distances (upper/lower limbs); ISO/TS 15066 — Collaborative robots: power & force limiting. The substituted worked example on the page lets you verify every step against the textbook.
How should I read the result — and how far can I trust it?+
A robot doesn't stop when the gate opens — it stops when its inertia is spent. Safety calculations here are layout-planning aids ONLY. The legally required values must come from the cited standards' full tables and a documented risk assessment by a qualified person.
When is this calculator the right tool for the job?+
Interlocked Gate (Whole-Body Access) calculation per the machinery-safety standards (ISO 13855/13857, ISO 10218, ISO/TS 15066). A free industrial robot kinematics & cell design tool. If a person can cross the cell faster than the run-down, the interlock must LOCK until standstill (guard locking), the detail that separates a compliant cell from a fast-looking one. For neighbouring scenarios, the related tools below cover the same engine with different presets.
Does it support both metric and imperial units?+
Yes — the SI ⇄ Imperial toggle converts the values already in the fields, preserving the physical quantity, so you can flip mid-calculation without re-entering anything.
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