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TP48200A-DT19D1 Outdoor Power System User Manual

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Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document. Note: Even the most advanced machine translation cannot match the quality of professional translators. Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
AC Phase Failure

AC Phase Failure

Possible Causes

  • The AC input power cable is faulty.
  • Rectifier connections are loose.
  • The SMU is faulty.

Measures

  1. Check whether the AC input power cable is correctly and securely installed. If not, reinstall the cable. If the insulation layer of the cable is damaged, replace the cable.
  2. Check whether a short circuit exists in the AC input power cable or the insulation layer is damaged. If so, replace the cable.
  3. If the AC input is normal and the Alarm indicators on certain rectifiers are steady yellow, reinstall the rectifiers.
  4. If the alarm persists, replace the SMU.
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Updated: 2019-03-05

Document ID: EDOC1000078784

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