Clean the sensor head: Dust or product residue often blocks detection. Wipe it gently with a dry cloth—avoid liquids that could damage components.

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Check alignment and sensitivity: If sensors misdetect product positions, adjust their angle per the manual. Huanlian’s PLC system lets you fine-tune sensitivity without professional tools.

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Inspect wiring: Loose connections are common after vibration. Ensure cables are securely plugged into the control panel.2. Power & Electrical System Glitches​

Reset tripped breakers: Check the control cabinet for popped breakers. Huanlian’s machines have labeled circuits, making this quick to fix.

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Verify power stability: Use a multimeter to check for voltage fluctuations. Unstable power damages components—consider a voltage regulator if issues persist.

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Check emergency stops: Accidental presses of e-stop buttons or improperly closed safety doors (with interlock sensors) trigger shutdowns. Ensure all safety covers are secured.​