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11119

P1 240 V AC Loss

Allen-Bradley · PowerFlex 750

¿Qué significa 11119 ?

240V AC input power was lost on port 1 while the drive was in an active state (e.g., MCS opening, closing, or closed). This causes the drive to cease operation.

Causas comunes

  • Tripped upstream circuit breaker or blown fuse on the 240V AC input line for Port 1.
  • Loose or corroded wiring connection at the drive's 240V AC input terminals (L1/L2) for Port 1.
  • Failure of an auxiliary control transformer or power supply providing 240V AC to the drive's control section (Port 1).
  • Intermittent power supply to the drive's control section (Port 1) due to contactor chatter or faulty relay.
  • Faulty 240V AC input voltage sensing circuit or its associated wiring for Port 1.

Pasos de reparación & Lista de verificación

Haga clic en los pasos para seguir su progreso.

  1. 1

    Verify the status of all upstream circuit breakers and fuses protecting the 240V AC input to Port 1.

  2. 2

    Measure the 240V AC voltage at the drive's L1 and L2 input terminals (Port 1) using a multimeter.

  3. 3

    Inspect and tighten all power wiring connections at the 240V AC input terminals (Port 1) for looseness or damage.

  4. 4

    Check the output voltage of any control transformer supplying 240V AC power to the drive (Port 1), if applicable.

  5. 5

    Confirm the proper operation of input contactors or relays that supply 240V AC power to Port 1.

Ver todos los códigos en este manual (60)
Datos técnicos verificados. Última actualización: March 2026

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Fuente: Allen-Bradley PowerFlex 750