Code 160-0164: Parameter not permissible in macro
Issue Description & Safety Warning
The Heidenhain TNC Series CNC has triggered a critical Parameter not permissible in macro 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] In an OEM macro, TOOL CALL was programmed with invalid parameters. - With TOOL CALL, no parameters are allowed in the macro for tool-oriented pallet machining. - In the TOOL CALL, only number, step index and spindle speed are allowed in the tool change macros. [Error correction]
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 160-0164 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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