公司名称：上海西门子变频器维修中心

西门子6RA7078直流调速维修，直流故障常见，速度不稳，不出力，输出电压低，烧可控硅，无励磁电压，烧保险，无显示，F031,F005,F068,F052，F004，FO11,F042等故障。配件齐全，技术一流，可上门服务。抢修热线 ：15221415233   李燕 http://www.tsqzx.com/ www.cmpzx.com  www.shdhly.com 订货号    注释        输出电压       电枢电压       电枢电流       励磁电压       励磁电流西门子全数字直流调速装置                                   6RA70   (三相桥B6C)                                   6RA7075-6DS22-0               210A             15A 6RA7078-6DS22-0               280A             15A 6RA7081-6DS22-0               400A             25A 6RA7085-6DS22-0               600A             25A 6RA7087-6DS22-0               850A             30A 6RA7075-6GS22-0               210A             15A 6RA7081-6GS22-0               400A             25A 6RA7085-6GS22-0               600A             25A 6RA7087-6GS22-0               800A             30A 6RA70(三相反并桥) (B6) A (B6) C                       6RA7075-6DV62-0                     210A             15A 6RA7078-6DV62-0                     280A             15A 6RA7081-6DV62-0                     400A             25A 6RA7085-6DV62-0                     600A             25A 6RA7087-6DV62-0                     850A             30A 6RA7075-6GV62-0                     210A             15A 6RA7081-6GV62-0                     400A             25A 6RA7085-6GV62-0                     600A             25A 6RA7087-6GV62-0                     850A             30A 6RA7086-6KV62-0       3AC 690V      725V      760A      325V      30A