Actual position values validation error
Bosch Rexroth · IndraDrive MPx02
What does F3117 mean?
An error occurred during the validation of actual position values, likely from a safety-related encoder. This means the system detected inconsistencies or implausible values in the position feedback, crucial for safety functions. This can indicate a problem with the encoder, its signal, or the validation logic, leading to a safety stop.
Common Causes
- Encoder signal disturbance or corruption
- Discrepancy between redundant encoder channels (if used)
- Encoder hardware defect causing erratic readings
- Software error in position value validation algorithm
- External mechanical disturbance affecting encoder accuracy
Repair Steps & Checklist
Click steps to track your progress.
- 1
Inspect the encoder feedback cable for physical damage, proper shielding, and secure connections at both the encoder and the IndraDrive MPx02.
- 2
Measure and verify the encoder's supply voltage at the drive's feedback connector (or encoder terminal) against the specified nominal voltage range.
- 3
Verify the IndraDrive MPx02 parameters related to the safety encoder type, resolution, and validation settings against the machine documentation and the physically installed encoder.
- 4
Access the IndraDrive MPx02's diagnostic screens or logs for additional encoder-specific fault codes or warnings that may provide further insight into the validation error.