AI3281-A-V001輸入卡件,TRICONEX使用產品
步進電機一般不具有過載能力。交流伺服電機具有較強的過載能力。以M2交流伺服系統為例,它具有速度過載和轉矩過載能力。其最大轉矩為額定轉矩的二到三倍,可用于克服慣性負載在啟動瞬間的慣性力矩。步進電機因為沒有這種過載能力,在選型時為了克服這種慣性力矩,往往需要選取較大轉矩的電機,而機器在正常工作期間又不需要那么大的轉矩,便出現了力矩浪費的現象。運行性能不同
AI3281-A-V001輸入卡件步進電機的控制為開環控制,啟動頻率過高或負載過大易出現失步或堵轉的現象,停止時轉速過高易出現過沖的現象,所以為保證其控制精度,應處理好升、降速問題。交流伺服驅動系統為閉環控制,驅動器可直接對電機編碼器反饋信號進行采樣,內部構成位置環和速度環,一般不會出現步進電機的失步或過沖的現象,控制性能更為可靠。
六、速度響應性能不同
步進電機從靜止加速到工作轉速(一般為每分鐘幾百轉)需要200~400毫秒。交流伺服系統的加速性能較好,以鳴志400W交流伺服電機為例,從靜止加速到其額定轉速3000RPM僅需幾毫秒,可用于要求快速啟停的控制場合。
綜上所述,交流伺服系統在許多性能方面都優于步進電機。但在一些要求不高的場合也經常用步進電機來做執行電動機。所以,在控制系統的設計過程中要綜合考慮控制要求、成本等多方面的因素,選用適當的控制電機。 微芯片、OLED、LCD、植入物和半導體的生產以及制藥業,對生產環境的無塵等級要求非常高。每一種類型的污染都會對產品造成直接影響,給制造商帶來巨大損失。同時,制造商對機器元件和供能系統也提出了特別高的無塵要求。為此,igus在四年前推出了易于拆裝的全封閉型波紋管e-skin系列。它是獲得德國弗勞恩霍夫(Fraunhofer)應用研究協會認證的ISO 1級產品,并在2018年榮獲該協會的“Clean! 2018”潔凈技術獎二等獎。 其獲獎理由是:由耐磨工程塑料制成的e-skin系列,擁有模塊化的結構,并可快速布線。為了使e-skin系列適用于更狹小的安裝空間,igus采用新的柔性材料打造出了柔性型e-skin soft系列,它可以在架空長度較短的狹小安裝空間中使用。 針對扁平安裝空間,igus也推出了一種帶內腔設計的新解決方案——扁平型e-skin flat系列。兩款新拖鏈在運行噪聲測試中都表現出色:柔性型e-skin soft系列的噪音值為32.4dBA,扁平型e-skin flat系列的噪音值為29dBA。 這表明,適用于無塵室的兩款新拖鏈相較于市場上的同類解決方案要更加安靜。
e-skin soft:模塊化,可快速填充
component, only aging without the limit of use times. The number of switches per minute of the relay is also limited, while the transistor does not. Transistors also have large currents, such as 5A or more It is the output of transistor. When there is a rear relay, pay special attention to the polarity of relay coil (generally, the coil is connected with protective diode or indicator light), otherwise the transistor will be burned out). Nowadays, industrial control products have developed to a stage of pursuing personalization and differentiation. The traditional PLC products have been unable to meet the more differentiated market demand. In order to meet this demand, there is a programmable control board. Programmable control board is a PLC that builds the PLC system software in the controller, customizes the hardware according to the user's control needs, and solves the object control problem by the application of PLC.
The example of the product proves that, based on the principle of tailorable software and hardware, the developed products can well meet the personalized needs of users, and various models can be customized according to the needs of users, which saves the hardware cost, shortens the R & D cycle, and obtains many powerful functions.
With the development of economy, the water supply capacity of most cities in China has been improved by leaps and bounds. Even at the peak of water consumption, the water supply capacity is still very rich, which lays the foundation for non negative pressure water supply equipment.