Code 140-0024: Attribute renamed in data object '%1' '%2'
Issue Description & Safety Warning
The Heidenhain TNC Series CNC has triggered a critical Attribute renamed in data object '%1' '%2' 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
Attribute '%3' [Cause of error] The read configuration data belong to an older level of the control. In the specified data object, the control renamed an attribute due to a rule. [Error correction] Check the value of the specified attribute in the data object. If the value is not correct, correct it. Then save the data.
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 140-0024 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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