230-0450

Access machine parameter configuration

Press MOD key, select 'Machine Parameters', navigate to CfgReferencing section using parameter search function.

Use Ctrl+F to quickly search for 'doubleRefOffset' parameter

Verify doubleRefOffset parameter

Check if CfgReferencing/doubleRefOffset parameter exists and has a valid numerical value for the affected axis.

Parameter changes require machine manufacturer authorization

Configure parameter value

Set doubleRefOffset to appropriate value based on encoder resolution and machine specifications, typically 0.001-0.01mm.

Consult machine documentation for manufacturer-recommended offset values

Save and restart control

Save parameter changes and perform control restart to activate new configuration before attempting reference run.

Check encoder diagnostic display

Navigate to MOD > Diagnosis > Encoder to view real-time encoder signals and reference mark detection status.

Monitor EnDat or 1Vpp signal quality during slow axis movement

Verify reference mark consistency

Perform manual reference approach at 1% rapid traverse and observe reference mark detection repeatability in encoder diagnostics.

Ensure axis is clear of obstacles before manual movement

Inspect encoder cable connections

Check encoder cable connections at motor and drive amplifier, verify proper shielding and absence of electromagnetic interference.

Use oscilloscope to verify clean encoder signals if available

Clean encoder scale or disk

Clean linear scale or rotary encoder disk with appropriate cleaning solution to remove contamination affecting reference mark detection.

Check axis reference status

In position display, verify axis shows proper reference status indicator (REF symbol) and position values are not flashing.

Flashing position values indicate incomplete reference status

Clear axis reference status

Navigate to Manual Operation mode, select affected axis, and use 'Clear Reference' function from axis menu.

Clearing reference will require complete re-referencing of the axis

Perform single reference run

Execute reference run using REF key for the affected axis only, ensuring complete cycle completion before any other operations.

Monitor reference run completion in the status line display

Verify reference completion

Confirm axis shows solid REF indicator and position display shows stable absolute coordinates without flashing.

Check drive communication status

Access MOD > Diagnosis > Drive to verify communication status and error counters for the affected axis drive.

Look for EnDat communication errors or timeout messages

Verify drive parameter consistency

Compare drive amplifier reference parameters with TNC axis parameters, ensuring encoder type and resolution match.

Drive parameter changes require qualified technician

Reset drive communication

Power cycle the specific drive amplifier or use drive reset function from TNC diagnostics menu.

Wait 30 seconds after power down before restart

Test reference run sequence

Perform reference run at reduced speed (50% of normal) to minimize communication timing issues during critical reference phase.