Fanuc · AC Spindle Motor Alpha i-Beta i Series Parameters
The temperature sensor connected to the spindle amplifier is disconnected. This prevents accurate monitoring of motor temperature, leading to a potential overheat risk.
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Measure the resistance of the temperature sensor element at ambient temperature.
Inspect the temperature sensor cable for breaks or damage.
Verify the sensor type (e.g., NTC, PTC, PT100) matches parameter P1-07.
Ensure the temperature sensor connector is securely plugged into the amplifier.
Apply gentle heat to the sensor and monitor resistance change.