Okuma Alarm D-4063 – DNC2 Communication Error

Okuma Alarm D-4063 indicates that the DNC2 communication channel could not be properly initialized. This prevents the system from establishing a stable communication connection.

Meaning of the Alarm

This alarm occurs when the control system detects that the communication channel setup has failed. It may be caused by incorrect communication parameters or invalid data configuration.

Possible Causes

  • Incorrect communication parameter settings

  • Invalid or corrupted communication data

  • DNC2 channel initialization failure

  • Configuration mismatch between systems

  • Connection or interface issue

Recommended Checks

  • Verify communication parameters and settings

  • Check data configuration for errors

  • Ensure correct DNC2 setup and initialization

  • Inspect communication cables and connections

  • Restart the system and reinitialize communication

When Professional Service Is Required

If the alarm persists after correcting communication settings, the issue may involve deeper configuration or hardware-related problems. In such cases, professional diagnostics are recommended.

Related Solutions

  • CNC diagnostics and troubleshooting

  • Communication setup and configuration

  • Control system interface inspection

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