Soft Phase Alarm

Hva betyr SP0134 ?

An abnormal acceleration rate was detected in the spindle motor. This alarm indicates that the spindle experienced an unexpected or excessive acceleration, which could be due to a mechanical issue, an incorrect control parameter, or a faulty feedback system.

• DC link voltage is excessively high (above P1-01 threshold).
• Over-voltage during regeneration or grid disturbance.
• Faulty DC link capacitors.
• Braking resistor not activating or is undersized.

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1. 1

   Check for any mechanical binding, excessive load, or obstructions on the spindle motor that could induce abnormal acceleration.

2. 2

   Verify the spindle motor's acceleration/deceleration parameters in the control system, ensuring they are set within the motor's operational limits.

3. 3

   Monitor the spindle's actual speed and acceleration data via the control system to pinpoint the conditions under which the abnormal acceleration occurs.

4. 4

   Ensure the motor's position and speed feedback system (sensor and cable) is providing accurate data, as incorrect feedback can trigger this alarm.

5. 5

   If no mechanical or parameter issues are identified, consider a potential fault in the spindle amplifier's control logic or the motor itself, requiring further diagnosis or replacement.