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Lockout/Tagout for Robot Cells

Published: Publisher: Zhilianhai Robotics News

Steps

  • Stop and confirm all motion has ceased.
  • Isolate electrical, pneumatic, hydraulic and stored energy.
  • Lock and tag; one person, one lock.
  • Release residual energy and support gravity-loaded axes.
  • Verify isolation by attempting a start.
  • Restore in reverse order and confirm the area is clear.

Weak points seen in practice

WeaknessImprovement
One lock for several peopleIndividual locks plus a lock box
Air not releasedAdd isolation valve and bleed point
No support for heavy axesMechanical support or verified brake

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