SYNCRONOUS VALUE IS OVER SPEED

What does SP9050 mean?

This Fanuc Series 0i-D/0i Mate-D spindle alarm indicates that in spindle synchronization mode, the calculated speed command value exceeded the allowable limit. This occurs when the motor speed, derived from the specified spindle speed and gear ratio, is too high.

• Commanded spindle speed during synchronous operation is excessively high.
• Incorrect gear ratio parameter (e.g., Parameter 4016) is set for the synchronized spindle.
• The calculated motor speed exceeds the maximum allowable motor speed set in parameters.
• Mechanical binding or friction in the spindle system contributing to speed control issues.

Click steps to track your progress.

1. 1

   Review the NC program and the commanded spindle speed during synchronous operation; reduce the speed if it's excessively high.

2. 2

   Verify the gear ratio parameters (e.g., Parameter 4016 for spindle gear ratio) for the synchronized spindle to ensure they are accurately set.

3. 3

   Check the maximum allowable motor speed parameter for the spindle motor and ensure the calculated speed does not exceed it.

4. 4

   Inspect the mechanical components (e.g., pulleys, gears, belts) involved in the spindle synchronization for proper assembly and wear.

5. 5

   Monitor the actual motor speed during operation via diagnostic screens to confirm it aligns with expectations and limits.