Code 230-04AE: PAE module not configured in IOCP file
Issue Description & Safety Warning
The Heidenhain TNC Series CNC has triggered a critical PAE module not configured in IOCP file 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] No machine functions for axis-group enabling were found in the IOCP file. The safety functions STO, SBC, and SS1 must be configured via a PAE-H switch-off module. The PAE module is presumably not configured. [Error correction] - Configure the PAE module correctly in the IOCP file. - Put the safety functions on terminals of a PAE module and configure them in accordance with the risk analysis of the machine. - 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 230-04AE 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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