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ER2
Internal ROM Access Error (OS Installation)
Mitsubishi Electric · MELSEC iQ-R Motion Controller
¿Qué significa ER2 ?
This error indicates an access failure to the internal ROM of the Motion CPU module during operating system software installation from an SD memory card. This points to a hardware issue with the module's internal memory, preventing the OS from being written.
Causas comunes
- Hardware error in the Motion CPU module's internal ROM preventing OS installation
Pasos de reparación & Lista de verificación
Haga clic en los pasos para seguir su progreso.
- 1
Exchange the Motion CPU module.
Datos técnicos verificados. Última actualización: March 2026
Fallas relacionadas
Fuente: Mitsubishi Electric MELSEC iQ-R Motion Controller