Safety related maximum speed exceeded

What does F7020 mean?

This safety technology error indicates that the actual speed of the motor, as monitored by safety functions, has exceeded the defined safety-related maximum speed limit on the IndraDrive MPx02. This is a critical safety violation, indicating an uncontrolled overspeed condition that requires an immediate safety shutdown.

• Incorrectly parameterized safety-related maximum speed (e.g., S-0-0091 'Maximum velocity') for the application.
• Loss of speed control due to incorrect tuning of the velocity loop or external disturbances.
• Encoder fault or noise leading to erroneous speed feedback.
• Commanded speed exceeding the configured safe maximum limit.
• Mechanical drive failure or external forces causing uncontrolled motor rotation.

Click steps to track your progress.

1. 1

   Review and adjust the safety-related maximum speed parameter (e.g., S-0-0091) in the IndraDrive MPx02, ensuring it aligns with the machine's safety limits and operational requirements.

2. 2

   Check the tuning of the velocity control loop for stability and accuracy, specifically proportional (Kp) and integral (Ki) gains.

3. 3

   Verify the motor encoder for accurate and consistent speed feedback. Inspect wiring for damage, loose connections, or electromagnetic interference.

4. 4

   Analyze the commanded motion profile and the application's dynamics to ensure that no operational condition leads to exceeding the safe maximum speed.

5. 5

   Inspect the mechanical system for any binding, excessive backlash, or external forces that could cause the motor to overspeed.