Overspeed Error

What does 08440000 hex mean?

The encoder detected the overspeed. This means the motor rotated at a speed exceeding its operational limits, which can lead to mechanical stress or system instability.

• The motor was rotated by external forces
• Encoder failure and false detection

Click steps to track your progress.

1. 1

   Verify maximum speed settings, scaling factors, and acceleration/deceleration parameters within the Omron NJ/NX controller and the connected servo drive.

2. 2

   Inspect all encoder cabling and connections between the motor, servo drive, and Omron NJ/NX controller for physical damage, proper shielding, and secure termination.

3. 3

   Monitor the actual motor speed feedback from the encoder and the commanded speed signal via the Omron NJ/NX diagnostic interface to identify any discrepancies or erratic behavior.

4. 4

   Inspect the mechanical load and coupling connected to the motor for signs of binding, reduced resistance, or external forces that could contribute to uncontrolled acceleration.