Code 230-022D: Motor table (%2) cannot be read
Issue Description & Safety Warning
The Heidenhain TNC Series CNC has triggered a critical Motor table (%2) cannot be read 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] The specified motor table could not be found or read. The file name specified for the motor table is syntactically incorrect. For the control's SQL server to read the file, the file name of the table must contain at least one letter at the beginning. Example: MOTOR123.MOT Observe other displayed messages on the cause of the error. [Error correction] - Correct the file name of the motor table - Check the directory of the motor table - Check the motor table - Check whether the motor table has all required columns - 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 230-022D 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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