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FbL alarm code in yaskawa V1000 drive

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Cause : PID Feedback Loss comes when the PID feedback input is lower than the level set to b5-13 for longer than the time set to b5-14.

  1. Parameter settings for b5-13 and b5-14 are incorrect. Check parameters b5-13 and b5-14.
  2. PID feedback wiring is faulty. Correct the wiring.
  3. Feedback sensor has malfunctioned. Check the sensor and replace it if damaged.
  4. Feedback input circuit is damaged. Replace either the control board or the entire drive.
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