西門子6RA23直流調速報警F25維修，西門子直流傳動6RA28維修，6RA23開機就報警F04，6RA23直流控制器F02故障，6RA23無顯示維修，6RA23電機抖動，6RA23變頻器無顯示，6RA23可控硅壞，6RA23主板維修，6RA23電源板壞，6RA70顯示A031維修，6RA80報警F60006維修，6RA80報警F60097，直流變頻器帶不動負載，直流調速加載報警，空機器正常帶不了負荷，直流電機線圈燒維修，電機發燙維修，電機里面打火冒煙維修，6RA28報F18維修,6RA28報F22維修,6RA28報F34維修,6RA28顯示F37維修,6RA28顯示F38維修,6RA28報F39,F51故障維修,F32維修、F19故障維修、F20代碼維修，6RA28開機報O3維修，6ra23B報警F02維修，6RA23直流F05維修，西門子6RA28顯示F25維修，直流調速報警F47故障6RA2313-6DV61-0      6RA2385-6DV61-0，西門子6RA23直流調速報警F25維修