CNi NC400 H0101D401DA Controller

CNi NC400 H0101D401DA is a servo‑drive controller module used in CNC and industrial machining systems. Common failure points for this class of controllers include damaged power input circuitry, burnt I/O traces, or failed voltage regulator ICs; the board often shows visible burn marks or blown capacitors. First‑check diagnostics: verify 24 V DC supply to the board, inspect all connectors for corrosion or loose pins, and review any error codes displayed on the host system’s HMI. If power is correct but the controller remains unresponsive, perform a continuity test across the main voltage rails and check the status LEDs for indication of internal fault flags.[oss-gpt-20b]

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