Código 27101: Axis %1 difference in function safe operational stop, NCK: %2 drive: %3
Descripción del problema y advertencia de seguridad
El Siemens SINUMERIK 840D CNC ha desencadenado una alarma crítica Axis %1 difference in function safe operational stop, NCK: %2 drive: %3. Se requiere la atención inmediata de un operador calificado o técnico de mantenimiento para evitar daños secundarios al equipo o piezas estropeadas durante el ciclo de fabricación. Asegúrese siempre de seguir los procedimientos de seguridad estándar y LOTO antes de acceder a los armarios eléctricos.
Pasos oficiales de solución de problemas
Parameters: %1 = Axis number %2 = Monitoring status safe operating stop %3 = Monitoring status safe operating stop Definitions: During cross-comparison of result list 1 a differ ence was detected between the NCK and drive monitoring channels in the status of safe operating stop monitoring. Safe operating stop: Bit 0,1 in result list 1 Monitoring status (%2, %3): - OFF = Monitoring is inactive in this monitoring channel - OK = Monitoring is active in this moni toring channel, limit val ues are not violated - L+ = Monitoring is active in th is monitoring channel, upper limit exceeded - L- = Monitoring is active in this monitoring channel, lower limit exceeded Reaction: Alarm display. If a safe monitoring was active, STOP B was also triggered automat ically. In this case, a power OFF/ON of the control will be required. Remedy: Check whether the safe inputs have switched to the same status in both monitoring channels within the permissible time tolerance. For further diagnostics, the drive parameters r9710[0], r9710[1] and the servo trace signals "Result list 1 NCK" and "Result list 1 drive" can be used. Program Continuation: Clear alarm with the RESET key. Restart part program
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.
Acerca de las alarmas de Siemens SINUMERIK 840D CNC
Los controladores industriales construidos por Siemens están diseñados con amplios sistemas de diagnóstico para proteger los circuitos internos y los enlaces mecánicos. Cuando un SINUMERIK 840D CNC arroja un código de error como 27101, generalmente indica un desajuste entre los valores ordenados y la retroalimentación real del sensor.
Lista completa de alarmas: 4014 Siemens SINUMERIK 840D CNC códigos.
Have a better solution?
Help the industrial community by sharing your repair experience for code 27101.
Need a searchable reference for more Siemens SINUMERIK 840D CNC manuals?
We structure equipment manuals into searchable code, title, cause, solution, safety note, and source-reference data. Send a PDF and example searched codes when you need public pages, private search, or structured exports.
Space reserved for Google AdSense / Industrial Affiliate Links
Monetization target for 2026