Fuji Electric restored the DC motor control equipment for the rolling mill motor at Aichi Steel Corporation. We replaced the analog control equipment delivered in 1978 with the digital control equipment "LEONIC-M700" and "LEONIC-M Compact," with the DC motor (410 kW) remained to be used. The DC motor control equipment is controlled by a programmable controller (PLC), and the speed control responsiveness was improved. By using existing cables for both the AC and DC sides, the control panels are downsized and combined with existing equipment. This enabled us to complete the replace work in a short period of time.
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