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WARNING/ALARM 2 in danfoss VLT FCD300

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(@click2electro)
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Cause : Live zero error comes when the voltage or current signal on terminal 53 or 60 is below 50% of the preset value in parameter 309 or 315 Terminal, min. scaling. Broken wiring or faulty device sending the signal can cause this condition.

  • Check connections on all the analog input terminals.
  • Check that the frequency converter programming and switch settings match the analog signal type.
  • Perform an input terminal signal test.
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