【摘要】 本文介绍的晶体管PWM INV-Ⅰ型变频调速装置,采用单片机8749H作为该系统的主要控制部件,并具有一系列可靠的故障自诊断及保护功能。工业运行结果表明:我院研制的这套装置,其各项技术性能达到了国外样机的水平。更多还原

【Abstract】 This paper introduces our institute designed and manufactured transistor PWM INV-I type variable frequency speed control device, which uses 8749H single chip microcomputer as main ontroller and is equipped with a series of fault self-diagnosis and protection functions, plant running results show that the performances of the device have attained to the same level as foreign sample.更多还原