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917

REVERSE ARMATURE POLARITY

Otis · DSD 412 DC Elevator Drive

¿Qué significa 917 ?

This fault is indicated during the F998 PCU Diagnostics Test. It signifies that the polarity of the Armature Voltage Feedback wires is reversed or that the wires are missing. Failure to correct this can lead to F909 faults and/or poor drive performance. A DSD power down is required.

Causas comunes

  • The Armature Voltage Feedback wires are connected with reversed polarity.
  • The Armature Voltage Feedback wires are disconnected or missing.

Pasos de reparación & Lista de verificación

Haga clic en los pasos para seguir su progreso.

  1. 1

    Check the connections on A1TB5-1 and A1TB5-2 of the Armature Interface PCB (A2) to ensure correct armature voltage feedback polarity.

  2. 2

    Perform a DSD power down after correcting the wiring.

Ver todos los códigos en este manual (48)
Datos técnicos verificados. Última actualización: March 2026

Fallas relacionadas

Fuente: Otis DSD 412 DC Elevator Drive
Otis 917 — Pasos de diagnóstico y reinicio | ErrorLib