2A9-0002

Access Tool Table

Press TOOL TABLE softkey, then select the active tool number causing the alarm.

Check the status line for the specific tool number referenced when alarm occurred

Verify Tool Geometry

Check R (radius) and L (length) columns for negative values, zero radius on milling tools, or unrealistic dimensions exceeding 999.999mm.

Never enter negative radius values for cutting tools

Correct Tool Data

Enter valid positive values for tool radius and length. For turning tools, radius can be 0.000.

Use TOOL DEF function in programming mode to verify tool geometry matches physical tool

Reset Simulation

Press RESET + START to clear alarm and restart 3-D simulation with corrected tool data.

Check Tool Type Column

In TOOL TABLE, verify the tool type column shows valid type number (0-99 for standard tools, 100+ for special tools).

Common types: 0=undefined, 1=end mill, 2=ball mill, 10=drill, 20=tap

Verify Tool Type Definition

Access MOD function, select tool type table, confirm the tool type number exists with proper geometry definition.

Modifying tool type definitions affects all tools using that type

Assign Correct Tool Type

Enter appropriate tool type number in tool table corresponding to actual tool geometry (end mill, drill, etc.).

Test Simulation

Run 3-D simulation test to verify tool displays correctly in graphics window.

Identify Corrupted Entry

Scroll through TOOL TABLE looking for entries with special characters, blank fields, or obviously incorrect data formats.

Look for entries showing asterisks (*) or question marks (?) indicating data corruption

Clear Corrupted Data

Select corrupted tool entry, press DEL key to clear all data for that tool number.

Re-enter Tool Data

Input fresh tool data including tool name, type, radius, and length using proper TNC formatting.

Always backup tool table before making extensive changes

Verify Data Integrity

Use TOOL CALL T[tool number] in MDI mode to test if tool data loads without errors.

Check Tool Table Size

Access MOD function, check machine parameter for maximum tool table entries (typically 254 or 999 tools).

Parameter MP7260 defines maximum number of tool table entries

Review Tool Names

Check tool name column for excessively long names (>16 characters) or special characters that may cause parsing errors.

Optimize Tool Table

Delete unused tool entries and shorten tool names to standard length (8-12 characters maximum).

Restart Control

Perform controlled restart of TNC to clear memory buffers and reload optimized tool table.

Access Graphics Parameters

Enter MOD mode, navigate to machine parameters section 72xx for graphics and simulation settings.

Only modify machine parameters if authorized - incorrect settings can disable control functions

Check Graphics Enable Parameters

Verify MP7200 (3-D graphics enable) is set to 1, and MP7210 (simulation resolution) has valid value.

MP7210 typical values: 0=coarse, 1=medium, 2=fine resolution

Reset Graphics Parameters

If parameters appear corrupted, restore from backup or contact machine tool builder for default values.

Restart and Test

Perform control restart and test 3-D simulation with known good tool to verify graphics functionality.