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933

Motor armature current does not increase to near test amps within 6 seconds.

Otis · DSD 412 Elevator System

Hva betyr 933 ?

This fault indicates that the motor armature current failed to reach near the specified test amperes within 6 seconds. This may occur during Self-Tune (Function #997) or Self-Diagnostic (Function #998).

Vanlige årsaker

  • Faulty motor armature circuit, possibly an open circuit.
  • Open SCR or missing SCR gating pulses.

Reparasjonssteg & Sjekkliste

Klikk på steg for å spore fremgangen.

  1. 1

    Check the motor armature circuit wiring for any open circuits.

  2. 2

    Inspect the motor itself for any internal open circuits.

  3. 3

    Perform Self-Diagnostics (Function #998) to verify the status of SCRs and their gating.

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Verifisert teknisk data. Sist oppdatert: March 2026

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