Nidec & Control Techniques Commander C200, C300, NE200 & NE300 Drive
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Apr 10, 2024 11:56 am
Cause : Communication fault comes when no control data was received from the connected PLC when using serial communications.
Typically "EF0" fault occurs when a drive is communicating with a PLC via Modbus, BACnet MS/TP, Apogee, or Metasys and communication is lost for the duration of time set in parameter.
- Baud rate and parity checksum is set incorrect- check communication parameters correct or not.
- Communication interrupted for long time- check the interface wiring.
