CE fault in INVT GD10 drive indicates a Communication Error. This means that the drive is unable to communicate with an external device, such as a PLC, HMI, or another drive, through the specified communication protocol (e.g., RS485, CANopen, Modbus RTU).

Common Causes of CE Faults:

1. Incorrect Communication Settings:

   • Mismatched baud rate, parity, or stop bits between the drive and the external device.
   • Incorrectly configured communication address or node ID.

2. Faulty Communication Cable:

   • Damaged or loose cable connections.
   • Incorrect cable shielding or grounding.

3. Hardware Malfunction:

   • Faulty communication port or chip on the drive.
   • Damaged communication interface on the external device.

4. Network Issues:

   • Network congestion or latency.
   • Network connectivity problems.

Troubleshooting Steps:

1. Verify Communication Settings:

   • Double-check the baud rate, parity, stop bits, and address settings on both the drive and the external device.
   • Ensure that the communication protocol is correctly configured.

2. Inspect Cable and Connections:

   • Visually inspect the communication cable for any damage or loose connections.
   • Check the cable shielding and grounding.
   • Try replacing the cable with a known good one.

3. Test Communication Ports:

   • Use a multimeter to check for continuity and voltage levels on the communication port pins.
   • If possible, try connecting the drive to a different external device or communication port.

4. Check Network Connectivity:

   • Verify the network connectivity between the drive and the external device.
   • Check for any network errors or conflicts.