Code 160-015A: TCPM TIP-CENTER is active with tool radius compensation
Issue Description & Safety Warning
The Heidenhain TNC Series CNC has triggered a critical TCPM TIP-CENTER is active with tool radius compensation 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] TCPM REFPNT TIP-CENTER with tool radius compensation is active. The following functions are not possible in this state: - M128 - M129 / FUNCTION TCPM RESET - FUNCTION TCPM REFPNT: Change of TCPM preset [Error correction] Deactivate tool radius compensation first with R0
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 160-015A 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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