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EF1 fault in delta drive

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Cause : Emergency stop comes when the drive has detected an activation of the emergency stop circuit connected to its multi-function input terminals.

The EF1 fault in drive indicates an Emergency Stop triggered by an external circuit. This means the contact of MIx=EF1 is ON, the output stops immediately and displays EF1 on the keypad. The motor is in free running.

  • Verify if the system is back to normal condition, and then press “RESET” key to go back to the default.
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