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PLFn warning in delta ms300 drive

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Posts: 18454
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(@click2electro)
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Joined: 4 years ago

Cause : Function defect comes when the program detects incorrect command (unsupported command) during PLC downloading, then PLFn warning occurs. This fault comes when unsupported command has used while downloading the program.

  • Check if the firmware of the drive is the old version.
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