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908

OVER TEMPERATURE FAULT

Otis · DSD 412 Elevator System

¿Qué significa 908 ?

The calculated SCR junction temperature is above 125 degrees Centigrade. This is derived from the thermistor heat sink measurement combined with the heating effects of measured armature output current on the SCRs. This fault will not shut down the drive.

Causas comunes

  • Ambient temperature too high.
  • Clogged air filter in cabinet.
  • Clogged heat sinks.
  • Cooling fan failure.

Pasos de reparación & Lista de verificación

Haga clic en los pasos para seguir su progreso.

  1. 1

    Check ambient temperature for high levels and address the underlying cause.

  2. 2

    Clean or replace the air filter in the cabinet.

  3. 3

    Clean the heatsink fins.

  4. 4

    Replace defective cooling fan(s) in the power cube.

Ver todos los códigos en este manual (57)
Datos técnicos verificados. Última actualización: March 2026

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