Mitsubishi Electric MDS-B-CV-150 power supply

MDS‑B‑CV‑150 is a Mitsubishi AC spindle power supply rated at 15 kW that accepts a 3‑phase input of 200–230 V (≈66 A) and delivers DC output of 270–311 V (≈76 A). Common failure modes in this class include degraded electrolytic capacitors, overheating due to inadequate ventilation or dust accumulation, and voltage regulation drift caused by aging rectifier diodes. First‑check diagnostics: verify input mains voltage and phase balance; measure the DC output under no load for correct voltage and ripple levels; inspect internal components for bulging or cracked capacitors and ensure cooling fans/airflow are unobstructed.[oss-gpt-20b] Post Comment

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