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SHORTED SCRS/DOUBLER FAULT

Otis · DSD 412 DC Elevator Drive

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One of the SCR/Doubler packs has a short circuit between the SCRs. This condition is checked only upon request through the PCU #998 Diagnostics CDU function. The optional handheld PCDU can also identify the specific SCR pair that is faulty. A DSD Power Down is required.

Vanlige årsaker

  • A short circuit has occurred within an SCR/Doubler pack.

Reparasjonssteg & Sjekkliste

Klikk på steg for å spore fremgangen.

  1. 1

    Initiate a DSD Power Down for the drive.

  2. 2

    Run the PCU #998 Diagnostics CDU function to identify the specific shorted SCR/Doubler pack.

  3. 3

    If available, use the optional handheld PCDU to identify the exact shorted SCR pair.

  4. 4

    Replace the identified shorted SCR/Doubler pack.

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Verifisert teknisk data. Sist oppdatert: March 2026

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Kilde: Otis DSD 412 DC Elevator Drive