10.5 | IMU & Terrain Compensation Issues

 

Issue	Possible Cause	Recommended Action
Cross-slopeTerrain inaccuratecompensation unavailable

IMU not connected Verify IMU harness connections and power supply Terrain compensation unavailable Incorrect IMU orientationtype configured Verify the correct IMU type is configured within Level COMMAND Terrain compensation unavailable IMU communication failure Verify IMU mountingCANBUS/serial directioncommunication and harness condition Terrain compensation unavailable IMU not detected during startup Power cycle the system and verify IMU startup status Cross-slope inaccurate Incorrect IMU orientation Verify IMU connectionorientation and mounting direction Cross-slope inaccurate IMU mounted on angled surface Mount IMU to a level reference surface aligned with the machine Cross-slope inaccurate Incorrect machine offsets configured Verify receiver and IMU offset configuration Cross-slope inaccurate Incorrect implement profile selected Verify the correct implement profile is configured Terrain compensation unstable IMU mounted on flexible surface Mount IMU to a rigid surface isolated from excessive vibration Terrain compensation unstable Loose IMU mounting hardware EnsureVerify IMU mounting hardware is securelysecure mounted Terrain compensation unstable Excessive vibration Inspect machine and mounting location for excessive vibration Terrain response erratic IMU calibration not completed Perform IMU/TCM calibration according to manufacturer instructions Terrain response erratic Calibration performed on uneven ground Perform calibration on stable level ground Terrain response erratic Machine moved during calibration Repeat calibration while machine remains stationary Terrain response delayed Low IMU update rate or communication issue Verify IMU communication quality and update rate Terrain compensation drifts over time IMU bias drift Recalibrate the IMU/TCM Terrain compensation drifts over time Temperature stabilisation incomplete Allow the IMU sufficient warm-up time before calibration Terrain compensation differs between passes IMU mounting shifted Inspect IMU mounting and alignment Terrain compensation differs between passes GNSS correction quality unstable Verify RTK/DGNSS correction status Automatic Control performance inconsistent on slopes Cross-slope compensation disabled Verify terrain compensation is enabled within Level COMMAND Automatic Control performance inconsistent on slopes Incorrect terrain compensation source selected Verify the intended IMU/TCM source is configured TCM calibration cannot be completed Poor satellite visibility Move machine to open sky area clear of obstructions TCM calibration cannot be completed Incorrect GNSS receiver configuration Verify GNSS receiver operation and correction quality TCM calibration cannot be completed Excessive machine vibration during calibration Perform calibration with machine stationary and hydraulics stable IMU intermittently disconnects Loose connector or damaged harness Inspect IMU harnessing and connectors IMU intermittently disconnects CANBUS communication instability Verify CANBUS network integrity and termination