905-2752

Check spindle dresser parameters

Navigate to Setup > Machine Parameters > Spindle and verify MP7440 DRESSER_TOOL_NR is set to 0 or undefined.

Document current parameter values before making changes

Verify dresser cycle status

Check MP7441 DRESSER_CYCLE_NR and ensure no active dresser cycle is referenced in the spindle configuration.

Changing dresser parameters may affect automatic tool conditioning

Reset dresser configuration

Set all dresser-related machine parameters (MP7440-MP7449 range) to default values and perform control restart.

Use MOD function to save parameter backup before modifications

Access tool table

Open Programming > Tables > Tool Table and locate the dresser tool entry specified in the alarm context.

Use search function (GOTO TOOL) to quickly find dresser tool number

Check tool status

Verify tool is not currently selected (T-1 display) and tool status shows no active locks or special conditions.

Never delete tools while spindle is running or tool is in use

Clear tool references

Execute TOOL CALL 0 to deselect any active tool, then delete dresser tool entry from tool table using DEL key.

Check for dresser tool references in active NC programs before deletion

Check PLC dresser markers

Access Diagnosis > PLC > Marker and examine dresser-related markers (typically M4xxx range) for active states.

Common dresser markers include M4200-M4299 depending on machine configuration

Verify input signals

Check Diagnosis > PLC > Input for any dresser position or status inputs that may be preventing deletion.

Do not manually force PLC inputs without understanding machine safety implications

Reset PLC dresser logic

Coordinate with machine builder to reset PLC dresser monitoring sequence or disable dresser PLC functions temporarily.

Document PLC marker states before reset for troubleshooting reference

Check cycle status

Navigate to Manual Operation > Spindle and verify no dresser cycles are shown as active or pending in the status display.

Look for cycle status indicators in the spindle information area

Clear cycle buffer

Execute emergency stop followed by control reset to clear any pending dresser cycle operations from the system buffer.

Emergency stop will interrupt all machine operations - ensure safe machine state first

Reinitialize spindle system

Perform spindle reference run and verify all dresser-related status flags are cleared before attempting deletion again.

Check spindle encoder and position feedback during reference run for anomalies