Siemens 840D 61332 - Channel Block: Modify tool tip position
The tool tip is below the measuring probe surface (e.g. for a ring gauge or cube). Alarm is triggered: CYCLE971, CYLCE972, CYCLE982, E_MT_CAL, E_MT_LEN, E_MT_RAD. Remedy: Place the tool above the measuring probe surface.
Siemens 840D 61332 - Channel Block: Modify tool tip position
Channel Block: Modify tool tip position
The tool tip is below the measuring probe surface (e.g. for a ring gauge or cube). Alarm is triggered: CYCLE971, CYLCE972, CYCLE982, E_MT_CAL, E_MT_LEN, E_MT_RAD. Remedy: Place the tool above the measuring probe surface.
Safety
Refer to Siemens documentation
Ensure qualified technician performs repairs
Common Causes
Tool tip positioned below the measuring probe surface during tool measurement cycle initialization
Incorrect tool offset or tool length compensation values causing tool to approach from below probe
Measuring probe (ring gauge, cube, or similar reference) positioned too high relative to tool parking position
Tool holder or spindle orientation misaligned, affecting tool approach geometry
Previous tool measurement cycle incomplete or aborted, leaving tool in incorrect position
Troubleshooting Steps
1Manually position the tool above the measuring probe surface using MDI or manual jog, then verify clearance visually
2Review and correct tool offset table values (tool length and radius compensation) in the part program or offset management screen
3Check measuring probe mounting height and re-establish probe reference position using calibration routine if needed
4Inspect spindle orientation and tool holder seating; ensure tool is fully seated and spindle is at correct angle for measurement cycle
5Clear the alarm, restart the tool measurement cycle (CYCLE971, CYCLE972, CYCLE982, E_MT_CAL, E_MT_LEN, or E_MT_RAD) and observe tool approach path
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