Nikki Denso NCR-CABIA2C-401A motor controller

The Nikki Denso NCR‑CABIA2C‑401A is an AC servo motor controller used to drive industrial servomotors in motion control systems. Common failure points for this model include overheating of the power MOSFET array, degradation of the input filter capacitors, and failure of the internal temperature sensor, all of which can trigger over‑temperature shutdowns or erratic output signals. Initial diagnostics should verify that the controller’s 48 V supply rail is within spec, inspect the I/O terminals for burn marks or loose connections, and review any logged error codes on the display panel for indications of phase loss or voltage sag.[oss-gpt-20b]

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