维修部：维修各行业电路板，机加工设备系统，主板，控制器，电源，变频器，PLC触摸屏等。
Maintenance department: maintenance industries circuit boards, machine equipment system, main board, controller, power supply, frequency converter, PLC and touch screen.
通过对结晶系统工作情况的分析，对其进行设备改造，同时运用变频器进行运行控制方式的改进，起到改善工作状况、节约能耗的作用。
The paper analyzed the circumstance of crystallization system, altered the equipments, and used frequency converter to improve the control mode, which can improve work condition and save energy.
通过自动喷涂设备电气控制系统的实现，说明VFD-B系列变频器的优越性能及快速动态响应特性。
The implementation of electric control system of automatic spray-painting equipment shows that VFD-B series inverter has excellent performance and fast dynamic response characteristic.
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