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Access Tool Table

Press OFFSET key, then select TOOL TABLE tab to view current tool offset values.

Use the cursor keys to navigate between tools quickly

Verify Tool Length Offsets

Check H-offset values for the tool causing the alarm. Compare against actual tool measurements or previous known good values.

Ensure spindle is stopped before any tool measurements

Re-measure Tool Length

Use tool setter or manual touch-off to re-establish correct H-offset value. Enter new value in tool table.

Use G43 H-offset test moves at slow feed rates to verify corrections

Test Tool Call

Execute a simple tool change and positioning move to verify the mismatch is resolved.

Run in single block mode first to catch any remaining issues

Check D-Offset Values

In TOOL TABLE, verify D-offset diameter values match actual tool diameters being used.

Use calipers or tool presetter for accurate diameter measurements

Verify Cutter Compensation Call

Check program for G41/G42 calls and ensure D-offset number matches tool table entry.

Incorrect diameter values can cause crashes or poor surface finish

Update Tool Table Entry

Enter correct diameter value in tool table D-offset field for the affected tool number.

Consider tool wear when measuring used tools

Validate with Test Cut

Run a test program with cutter compensation to verify diameter correction resolves the alarm.

Use air cutting first to verify tool path before actual machining

Identify Called Tool Number

Check program line causing alarm to identify which T-number is being called (e.g., T01 M06).

Use EDIT mode search function to quickly locate tool calls

Verify Tool Table Entry Exists

In TOOL TABLE, confirm the called tool number has a corresponding entry with valid data.

Empty tool table entries can cause unpredictable machine behavior

Check Tool Data Completeness

Ensure tool table entry has all required fields populated: length, diameter, and tool type if applicable.

Use consistent tool numbering system across all programs

Update Program or Tool Table

Either correct the T-number in the program or add/update the missing tool table entry with proper values.

Document tool changes in setup sheets for future reference

Backup Current Tool Table

Use MEMORY/USB function to save current tool table data before making changes.

Always backup data before performing memory operations

Clear and Reload Tool Table

Clear affected tool table entries and manually re-enter known good tool data.

Keep written records of critical tool offsets for situations like this

Check Parameter 140-149 Range

Verify tool change parameters in SETTING 140-149 range are set to default values if corruption is suspected.

Compare parameter values with Haas parameter manual defaults

Perform Control Restart

Power cycle the control to clear any temporary memory issues and reload tool table from saved parameters.

Ensure all programs and offsets are saved before power cycling

Check Tool Setter Operation

Verify tool setter probe extends and retracts properly and probe LED indicates correct status.

Ensure probe is clean and free of debris before calibration

Recalibrate Tool Setter

Run tool setter calibration routine using known master tool or calibration ring per Haas procedure.

Perform calibration at operating temperature for best accuracy

Verify Calibration Parameters

Check Parameters 140-149 range for tool setter calibration values and compare to baseline values.

Document calibration values for trending and maintenance records

Test Tool Measurement Cycle

Run automatic tool measurement on known good tool to verify calibration resolved the mismatch issue.

Use the same tool for calibration verification that was used for initial setup