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18
Unbalance
Vacon · NX Liquid-Cooled Drive
¿Qué significa 18 ?
This is a warning indicating an unbalance condition between power modules in paralleled drive units. Subcode S1 signifies current unbalance, while S2 indicates DC-Voltage unbalance, pointing to an uneven load or voltage distribution across the parallel modules.
Causas comunes
- Input power phase voltages are significantly unequal (P0305).
- Motor winding resistance is unbalanced.
- Internal motor connection issue.
Pasos de reparación & Lista de verificación
Haga clic en los pasos para seguir su progreso.
- 1
Check the current distribution across the individual power modules in the parallel configuration to identify any discrepancies.
- 2
Measure the DC-link voltage across each power module to ensure voltage balance.
- 3
If the warning re-occurs, further investigation of the power module health and interconnections is required.
Datos técnicos verificados. Última actualización: March 2026
Fallas relacionadas
Fuente: Vacon NX Liquid-Cooled Drive