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Troubleshooting Y03 Error: Drive Unit Not Installed When Connecting Mitsubishi M80 System to MDS-EJ-V1-40B Drive
2026-03-03

The customer is using the Mitsubishi M80 system and cannot recognize the driver when installing the fourth axis. The driver model used by the customer is: MDS-EJ-V1-40B


System error: Y03   Driver unit not installed


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On-site guidance: The customer adjusted parameter 1290 to 1, perfectly resolving the issue.


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