The frequency converter with direct torque control(DTC)technology developed by ABB improves the control accuracy of the AC motor without an encoder,and the precise speed control in the production process can further improve the quality of the product.
After experiencing ACS100,140 and 400,ABB Electric Drives has launched a new generation of products:ACS800 frequency converter
ABB开发的具有直接转矩控制（DTC）技术的变频器，使得在没有编码器的情况下，提高了交流电机的控制精度,生产过程中精确的速度控制可进一步提高产品的质量。
ABB电气传动公司在经历了ACS100、140、400后的今天推出了更新一代的产品：ACS800频器
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