Error, brake check time interval exceeded
Bosch Rexroth · IndraDrive MPx02
What does F3115 mean?
This fault indicates that the programmed time interval for performing a safety-related brake check has been exceeded on the IndraDrive MPx02. This is a safety monitoring function to ensure the holding brake's integrity, and exceeding the interval implies the brake's reliability has not been recently verified.
Common Causes
- Brake check not initiated or completed within the configured time interval (e.g., P-0-0536, 'Sercos brake check time').
- Machine or application conditions preventing the execution of the brake check within the timeframe.
- Faulty holding brake, brake control, or brake monitoring feedback.
- Incorrectly set time interval for the brake check, making it too short for the application.
Repair Steps & Checklist
Click steps to track your progress.
- 1
Initiate a manual brake check and ensure it completes successfully.
- 2
Verify the configured brake check time interval (e.g., P-0-0536) in the IndraDrive MPx02 to ensure it is appropriate for the application's duty cycle.
- 3
Check the holding brake's wiring, power supply, and mechanical function. Ensure it releases and engages correctly.
- 4
Inspect the feedback signals from the brake (if applicable) for correct operation, indicating brake status.
- 5
Review the machine's operational sequence to identify if a condition is preventing the timely execution of the brake check.