Code 235-009C: Zwei Geräte am HSCI-Strang vertauscht
Issue Description & Safety Warning
The Heidenhain TNC Series CNC has triggered a critical Zwei Geräte am HSCI-Strang vertauscht 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] Folgende zwei Geräte im HSCI-Strang sind gegenüber der Projektierung vertauscht: Angabe: Typ (HSCI-Adresse, Seriennummer) %1 %2 Mögliche Ursache: - Option zur Konfiguration des Hardware-Ausbaus falsch gesetzt - Falsche Verkabelung am HSCI-Strang [Error correction] - Projektierung und die dabei wirksamen Optionen prüfen - Verkabelung des HSCI-Strangs prüfen 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 235-009C 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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