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Siemens SINUMERIK 840D CNC

Code 120306: The selection is not possible. The file %1 is selected and active in channel %2.

Problembeschreibung & Sicherheitswarnung

Die Siemens SINUMERIK 840D CNC hat einen kritischen The selection is not possible. The file %1 is selected and active in channel %2.-Alarm ausgelöst. Sofortige Aufmerksamkeit durch einen qualifizierten Bediener oder Wartungstechniker ist erforderlich, um Folgeschäden an der Ausrüstung oder verdorbene Teile während des Fertigungszyklus zu vermeiden. Stellen Sie immer sicher, dass standardmäßige Sicherheits- und LOTO-Verfahren befolgt werden, bevor Sie auf Schaltschränke zugreifen.

Offizielle Schritte zur Fehlerbehebung

Parameters: %1 = Program name with path %2 = Channel number Definitions: -Reaction: Alarm display. Remedy: Stop the program with the NCU's channel reset and make the selection again. The alarm disappears automatically as soon as a pr ogram is edited or simulated in the program area. The alarm can also be acknow ledged manually via diagnostics. Program Continuation: Internal

Source: SINUMERIK 840D sl / 840Di sl / SINAMICS S120 Diagnostics Manual (DAsl, 03/2009)

Last reviewed: 2026-07-01 · Verified against the manufacturer’s official documentation.

Über Siemens SINUMERIK 840D CNC Alarme

Industriesteuerungen von Siemens verfügen über umfangreiche Diagnosesysteme zum Schutz der internen Schaltkreise und mechanischen Verbindungen. Wenn eine SINUMERIK 840D CNC einen Fehlercode wie 120306 ausgibt, deutet dies typischerweise auf eine Diskrepanz zwischen befohlenen Werten und tatsächlichem Sensor-Feedback hin.

Vollständige Alarmliste: 4014 Siemens SINUMERIK 840D CNC codes.

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Verwandte Siemens SINUMERIK 840D CNC Codes

Code 120301
Faulty entry for hardkey 'Program' in Keys.ini.
Code 120302
The selection is not possible. A prog ram has to have been edited first via the area 'Program'.
Code 120303
The selection is not possible. The edited file %1 no longer exists.
Code 120304
The selection is not possible. The file %1 has insufficient read rights.
Code 120305
Selection is not possible. The file %1 is currently being edited.
Code 120307
File %1 cannot be opened for the editor because it is selected in channel %2 for execution by external sources.
Code 120308
In the event of an emergency stop, the program %1 can only be changed in the machine/program correction area.
Code 120309
The selection is not pos sible. Please close the simulation and repeat the selection.
Code 120310
The selection is not possible. Please wait for the pending action or terminate it, then repeat the selection.
Code 120400
The settings for the acyclic links with the drive units are not yet effective.%nSwitch off/on HMI !