The Three Common Causes
- Trigger too sensitive: Adjust actuator 0.5 mm past the edge to create dead-band
- Oil on contacts: Clean with electrical contact cleaner
- Lever vibration: Add damping spring or switch to plunger type
How to Troubleshoot False Triggers in Mechanical Plate Return Switches
Key Takeaway: Three causes cover 90% of false triggers: trigger position too sensitive, oil-contaminated contacts, and lever vibration at boundary.
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