Absolute encoder out of allowed window
Indramat · DIAX 04
What does F276 mean?
The DIAX04 SSE-03VRS drive has detected that the position reported by the absolute encoder is outside the configured allowed travel range or absolute window. This indicates an incorrect absolute reference, an unexpected mechanical position, or a configuration error, potentially leading to incorrect homing or movement strategies. The drive faults to prevent unsafe or unreferenced operation.
Common Causes
- The absolute encoder's zero point or multi-turn count is incorrect relative to the mechanical system's limits.
- The configured absolute position window (e.g., S-0-0051, S-0-0052) in the DIAX04 SSE-03VRS drive is too small or incorrectly set.
- The machine axis moved outside its defined mechanical limits without proper homing or referencing.
- Faulty absolute encoder providing incorrect position data.
- Loss of absolute position data due to battery failure or memory corruption.
Repair Steps & Checklist
Click steps to track your progress.
- 1
Manually move the machine axis to a known, safe position within the expected travel range.
- 2
Verify and correct the absolute encoder's zero point and multi-turn count calibration. Perform a new homing or referencing cycle if necessary.
- 3
Review the configured absolute position window parameters (e.g., S-0-0051, S-0-0052) in the DIAX04 SSE-03VRS drive. Adjust them to match the actual machine travel limits.
- 4
Check the absolute encoder cabling for integrity. If a battery-backed encoder, verify battery voltage (F248).
- 5
If the encoder data appears erratic, consider a faulty absolute encoder or issues with its communication to the DIAX04 SSE-03VRS.