摘要
随着中央空调行业的发展,对温度的控制精度要求也在不断提高,螺杆机组从开始的四段或三段控制方式,改为无级能量调节。我们选用S7-200PLC作为主控单元,完成了机组的试制工作,使公司的产品满足了市场的需求。
With the central air-conditioning industry, temperature control accuracy has been improved, screw the four crew from the start or control three-way power adjustment stepless change. S7-200PLC we choose as a main control unit, the unit completed the trial, so that products meet the needs of the market.
出处
《电气技术》
2009年第5期74-75,共2页
Electrical Engineering
关键词
水源热泵螺杆机组
无级能量调节
系统控制要求
程序设计
water-source heat pump
unit screw stepless
control of power conditioning system
design requirements
