爆乳肉体大杂交在线观看 ,亚洲精品久久激情国产片,国产无遮挡指交视频,国产极品在线观看视频,4虎影院在线观看视频,4hc44四虎www在线影院,成人欧美一区二区三区,中文亚洲爆乳无码专区,精美人妻与无码人妻,国产特级淫片免费看,好黄好硬好爽免费视频高清,无码专区大学生,亚洲第一成人无码A片,亚洲av无码专区亚洲av桃,99久久国产免费只有精品,中国少妇毛茸茸黄色视频

1、EC技術(shù)的風機，可通過外部的電路脈沖調(diào)制或0-10V的電壓調(diào)節(jié)來實現(xiàn)風機的無級變速。

Variable speed control ofEC fan can be realized/achievedvia 0-10Vspeed adjustmentand/or external circuit impulse modulation.

2、EC技術(shù)的風機通過180度正弦(SVPWM)矢量控制可實現(xiàn)智能的恒恒流量控制，滿足客戶的智能需求。轉(zhuǎn)速、恒轉(zhuǎn)矩、

Constanttorque, constant speed and constant airflow of EC fan can befulfilled via180"sine SVPWM(Space Vector PWM) to meet customerneeds.

3、智能的EC風機可支持用戶通過485總線實現(xiàn)集中運行控制和監(jiān)控多達255臺風機。

Intelligent EC fan can support users to realize centralized operationcontrol by 485 bus and monitor as many as 255 fans.

4、采用EC技術(shù)的風機擁有全面的保護功能;如缺相、浪涌電壓、過欠電壓，堵轉(zhuǎn)，過電流、溫度保護等。EC fan has comprehensive protection function, such as phase failure.overvoltage, underyoltage,locked-rotor, over current and temperature protection.