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Código 230021: <location>Power unit: Ground fault

Descripción del problema y advertencia de seguridad

El Siemens SINUMERIK 840D CNC ha desencadenado una alarma crítica <location>Power unit: Ground fault. 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: %1 Drive object: All objects Reaction: OFF2 Acknowledge: IMMEDIATELY Cause: Power unit has detected a ground fault. - ground fault in the power cables - winding fault or ground fault at the motor. - CT defective. Additional cause for CU310/CUA31: - when the brake is applied, this causes t he hardware DC current monitoring to respond. Additional cause for parallel sw itching devices (r0108.15 = 1): - the closed-loop circulating current control is either too slow or has been set too fast. Fault value (r0949, interpret decimal): Absolute value, summation current [32767 = 271 % rated current]. Remedy: - check the power cable connections. - check the motor. - check the CT. The following applies addi tionally for CU310 and CUA31: - check the cables and contacts of the br ake connection (a wire is possibly broken). For parallel switching devices (r0108.15 = 1) the following additionally applies: - check the ground fault monitoring thresholds (p0287). - check the setting of the closed-loop circulating current control (p7036, p7037). See also: p0287 (Ground fault monitoring thresholds)

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 230021, 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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