ABB IRT 710 Product Manual page 19

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Safety door with interlock device for mechanical safety fence
The calculation formula corresponding to the minimum safety distance is:
S = K*T+C
K = 2000 mm/s (Approaching speed of the walking human)
T = The maximum time for the machine to stop + Interlock response time
C = 850 mm (Traverse distance)
Product manual - IRT 710
3HKA00000186299-001 Revision: B
Note
If the recalculated value ≤ 500mm, then S should be set as 500 mm.
Note
The interlock device should follow the dual channel requirements.
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1 Safety
1.1.3 Safeguarded space
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