UnderVoltage

¿Qué significa F4 ?

An undervoltage fault indicates that the incoming AC line voltage has dropped below the drive's acceptable operating threshold. This can be caused by power sags or prolonged low line voltage conditions.

• Input supply voltage has dropped below the minimum acceptable level.
• Undervoltage condition on the DC bus.
• External power source instability.
• Low voltage detected at the input terminals (P1-10).

Haga clic en los pasos para seguir su progreso.

1. 1

   Measure the incoming AC line voltage at the drive input terminals (L1, L2, L3) to confirm it is within the drive's specified operational range.

2. 2

   Check for any issues with the upstream power distribution system that might cause low voltage.