125-014A

Check active tool status

Press the TOOL TABLE key and observe which tool entry has the active marker (typically highlighted or marked with an indicator). Note the current T number displayed in the position display area.

The active tool remains locked even after an M30 if no T0 was called - always use explicit tool deselection for table editing.

Deselect active tool

Switch to MDI mode (Manual Data Input) and execute 'T0 M6' to deselect the current tool and clear the active tool lock from the tool table.

Ensure machine is in a safe position and no workpiece collision can occur during tool change execution.

Modify tool table entry

Return to the TOOL TABLE, select the desired tool entry, and make the necessary changes to length, radius, or other tool parameters. Changes should now be accepted without alarm.

Use the editing mode toggle (soft key 'EDIT ON/OFF') if the table appears read-only despite no active tool.

Identify current operating mode

Check the mode display on the control screen. Note whether you are in Manual Operation, Positioning with Manual Data Input, Program Run Full Sequence, Program Run Single Block, or Test Run mode.

The alarm often occurs when switching from Test Run to editing mode - always fully exit Test Run with the END key first.

Switch to appropriate mode

Press the appropriate operating mode key: Manual Operation for preset/datum changes, or stop any active program execution with the STOP key before attempting parameter modifications.

Use INTERNAL STOP before switching modes if program is running to prevent loss of position reference.

Access preset or parameter table

For preset changes: Press POS key, then select 'Preset Table' soft key. For machine parameters: Hold MOD key and enter password (default 807667), then navigate to the appropriate parameter group.

MP7266.x controls tool table write protection levels - verify this is set to allow modifications in your current login state.

Re-attempt input

Enter the desired value or parameter change. The input should now be accepted without triggering alarm 125-014A.

If modifying cycle parameters, ensure you are in the cycle definition phase, not in the cycle execution phase within a program.

Check compensation status

Review the program position display and look for active compensation indicators: RL (radius comp left), RR (radius comp right), or active tool length comp. Press POS key and check the compensation display fields.

Compensation status persists across program stops - check even if no program appears to be running.

Cancel active compensation

If in MDI mode, execute 'R0' to cancel radius compensation. If in a program, navigate to a safe position and ensure compensation is properly cancelled with R0 or programmed M30 with compensation termination.

Abrupt compensation cancellation can cause unexpected tool movement - ensure safe clearance from workpiece.

Modify datum or preset

With compensation cancelled, access the Preset Table or use the 'Preset to current position' function (POS key, then PRESET soft key) to establish new datums. Input should now be accepted.

Consider using the datum table (zero point table) instead of preset if you need to switch references during compensation operations.