Root Cause A Nuisance Stop
Apply root cause analysis to distinguish symptom, contributing factors, and corrective action in a robot-cell stop.
A robot depalletizer trips a safety scanner five to seven times per shift, and operators have started treating the reset as routine. RCA defines the problem, gathers evidence, traces causes, selects corrective action, and verifies recurrence reduction. Not quite: replacing the scanner because it is the visible device may only replace the messenger. If the scanner is seeing a real intrusion caused by pallet wrap, conveyor bump, or layout, the stop will return and trust will drop further. Problem statement Define it: scanner zone S2 trips five to seven times per shift, mostly on SKU P17 pallets, during depalletizer infeed…
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