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4
Charging Fault
Vacon · NX Liquid-Cooled Drive
¿Qué significa 4 ?
The pre-set charging time for the DC-link, defined by parameter P.2.1.3 (MaxChargeTime, default 5 seconds), has been exceeded. Specifically, the DC voltage failed to rise above 40VDC within 1 second during the initial charging sequence.
Causas comunes
- DC bus voltage not reaching nominal levels during charging.
- Faulty charging contactor or relay.
- Internal failure in the power supply unit.
- Issue with rectifier bridge or input power.
Pasos de reparación & Lista de verificación
Haga clic en los pasos para seguir su progreso.
- 1
Inspect the external charging circuit components, including the charging resistor, for proper dimensioning and integrity.
- 2
Verify the value of parameter P.2.1.3 (MaxChargeTime) to ensure it is adequately set for the system.
Datos técnicos verificados. Última actualización: March 2026
Fallas relacionadas
Fuente: Vacon NX Liquid-Cooled Drive