Code 235-00A1: Falsches Modul in HSCI-Gerät
Issue Description & Safety Warning
The Heidenhain TNC Series CNC has triggered a critical Falsches Modul in HSCI-Gerät 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] Auf dem Gerät %4 mit der Seriennummer %5 an HSCIAdresse %3 entsprechen folgende Module nicht der Projektierung: Angabe: Typ (Steckplatz) Projektierung: %1 Hardware: %2 Mögliche Ursachen: - Option zur Konfiguration des Hardware-Ausbaus falsch gesetzt - Falsches Modul gesteckt [Error correction] - Projektierung und die dabei wirksamen Optionen prüfen - Gestecktes Modul überprüfen Hierzu können Sie die Diagnose-Funktionen der Steuerung nutzen.
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 235-00A1 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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