Código 201940: <location>IF1: PB/PN clock cycle synchronism not reached
Descripción del problema y advertencia de seguridad
El Siemens SINUMERIK 840D CNC ha desencadenado una alarma crítica <location>IF1: PB/PN clock cycle synchronism not reached. 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
Message value: Drive object: All objects Reaction: NONE Acknowledge: NONE Cause: The bus is in the data exchange state and clock synchronous operation has been selected using the parameterizing telegram. It was not possible to synchr onize to the clock cycle specified by the master. - the master does not send a clock synchronous global control telegram although clock synchronous operation was selected when configuring the bus. - the master is using another clock synchronous DP clock cycle than was transf erred to the slave in the parameterizing telegram. - at least one drive object (that is not contro lled from PROFIBUS/PROFINET) has a pulse enable. Remedy: - check the master application and bus configuration. - check the consistency between the clock cycle input when configuring the slave and clock cycle setting at the master. - ensure that the pulses of drive objects that are not controlled by PR OFIBUS/PROFINET are not enabled. Only enable the pulses after synchr onizing the PROFIBUS/PROFINET drives. Note: IF1: Interface 1 PB: PROFIBUS PN: PROFINET
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 201940, generalmente indica un desajuste entre los valores ordenados y la retroalimentación real del sensor.
Lista completa de alarmas: 4014 Siemens SINUMERIK 840D CNC códigos.
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