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A003 alarm in siemens master drive

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(@click2electro)
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Cause : Drive not synchronous comes when synchronization has been activated, the drive is not synchronous due to poor communication connection.

  1. Check r748 i002 and i003 = counters for CRC faults and timeout faults.
  2. Check the fiber-optic cable connection.
  3. Check P751 on the dispatcher (connector 260 must be softwired).
  4. Check P753 on the transceiver (corresponding SIMOLINK connector K70xx must be softwired).
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