230-045C

Verify axis reference positions

Navigate to MOD > Settings > Axis and check that all EnDat axis reference positions match expected machine zero positions.

Compare displayed positions with your machine setup sheet to ensure accuracy

Clear alarm and test axes

Press CE to clear the alarm, then perform manual axis movements to verify encoder feedback is functioning correctly.

Move axes slowly initially to confirm position feedback accuracy

Re-establish reference points

Execute reference point approach (REF) for all affected axes to synchronize machine and encoder positions.

Use Manual mode and approach reference points individually for better control

Save current positions

Navigate to MOD > System Files > Save to create new backup of current axis reference positions.

Create multiple backup files with date stamps for future reference

Check battery status

Navigate to MOD > Info > General to verify backup battery voltage is above 2.7V and charging properly.

New batteries may take 24-48 hours to fully charge

Verify restored positions

Compare current axis positions with machine mechanical references using dial indicators or measurement tools.

Do not assume restored positions are accurate without physical verification

Recalibrate if necessary

If positions are incorrect, manually set axes to known reference positions and update EnDat reference values in MOD > Settings > Axis.

Use precision measurement tools for critical positioning accuracy

Test system stability

Run the machine through normal operations for several hours to ensure S-RAM retention is stable with new battery.

Monitor for any additional position-related alarms during testing period

Review recent file operations

Check MOD > System Files > File Manager for recent restore operations and verify which backup file was used.

Look at file timestamps to identify when the restoration occurred

Validate restored data

Navigate to MOD > Settings > Axis and review all EnDat encoder parameters and reference positions for accuracy.

Incorrect reference positions can cause crashes or dimensional errors

Perform reference point check

Execute REF function for all axes and verify they approach correct mechanical reference positions.

Use reduced feedrate for initial reference approach after restoration

Document changes

Record the restoration event in machine logbook with date, file used, and verification results.

Keep detailed records of all position reference changes for future troubleshooting

Check EnDat communication status

Navigate to MOD > Diagnosis > Encoder and verify all EnDat encoders show 'OK' status with no communication errors.

Look for intermittent error counters that indicate unstable communication

Inspect encoder connections

Visually inspect EnDat encoder cables and connections for damage, moisture, or loose connections at both encoder and drive ends.

Power down system before inspecting electrical connections

Test encoder functionality

Use MOD > Diagnosis > Encoder > Test function to verify EnDat encoder position feedback accuracy and stability.

Compare encoder readings with external measurement devices for validation

Monitor for recurring issues

Run extended test cycles while monitoring encoder diagnostics for any communication dropouts or position errors.

Set up alarm logging to capture any intermittent EnDat communication faults