SOFT PHASE ALARM(INT)

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This alarm on Fanuc Series 0i-D/0i Mate-D with αi/βi Pulsecoders signifies a position data alarm within the built-in Pulsecoder, often caused by environmental factors like cutting fluid ingress or electrical noise corrupting the signal.

• Electrical noise interfering with the Pulsecoder's position data signals.
• Entry of cutting fluid or other contaminants into the Pulsecoder, affecting its internal components.
• Internal failure of the Pulsecoder affecting position data accuracy.

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1. 1

   Inspect the Pulsecoder for any signs of cutting fluid ingress, contamination, or corrosion; clean thoroughly if found.

2. 2

   Check for and mitigate potential sources of electrical noise (e.g., faulty contactors, unshielded cables) near the Pulsecoder and its cabling.

3. 3

   Verify the integrity of the Pulsecoder cable, ensuring proper shielding and secure connections at both ends.

4. 4

   If environmental factors and noise mitigation do not resolve the issue, replace the Pulsecoder unit.