Code 292-001B: Thread cutting: Spindle synchronization aborted!
Issue Description & Safety Warning
The Heidenhain TNC Series CNC has triggered a critical Thread cutting: Spindle synchronization aborted! alarm. Immediate attention from a qualified operator or maintenance technician is required to prevent secondary damage to the equipment or spoiled parts during the manufacturing cycle. Always ensure standard safety and LOTO procedures are followed before accessing electrical cabinets.
Official Troubleshooting Steps
[Cause of error] During tapping with servo-controlled spindle, the movement was interrupted during spindle synchronization. The tool axis did not come to a stop until after reaching the safety clearance, although the spindle is still turning. [Error correction] - Check the tool and workpiece for possible damage. - Generate the service file and inform your service agency
Source: HEIDENHAIN NC Error Messages — TNC7/640/620/320/128, CNC PILOT 640, MANUALplus 620 (10/2023)
Last reviewed: 2026-07-01 · Verified against the manufacturer’s official documentation.
About Heidenhain TNC Series CNC Alarms
Heidenhain controllers include extensive self-diagnostics that flag or halt the machine when a fault is detected. Error code 292-001B on the TNC Series CNC identifies one specific fault condition — its documented cause and the official corrective steps are listed above, sourced from Heidenhain's service documentation. Always confirm against the manual for your exact machine configuration and follow LOTO procedures before servicing.
Complete Alarm List: 4497 Heidenhain TNC Series CNC codes.
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