Troubleshooting Steps
- Verify type match: NPN for Asian controllers, PNP for European
- Check gap: Mount at ≤ 60% of rated sensing distance
- Clean face: Remove any steel chips from sensing face
- Check wiring: Brown=+V, Blue=0V, Black=signal
How to Troubleshoot Unstable Proximity Sensor Signals in Mold Ejectors
Key Takeaway: Check three things in order: 1) NPN/PNP match with controller, 2) sensing gap ≤ 60% of rated range, 3) sensing face clean from metal debris.
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