上海一擎自動化科技有限公司，專業(yè)維修西門子直流調(diào)速，西門子6RA70全系列直流專業(yè)維修，6RA7087維修，6RA7085維修，6RA7025維 修，直流電源板維修，CUD1直流主板維 修，                                                                                                                                                                                                                                                                                                                                                                
，直流勵磁板維修，大量齊全配件，模擬負(fù)載測試，優(yōu)化。咨詢：   王
直流故障常見，速度不穩(wěn)，不出力，輸出電壓低，燒可控硅，無勵磁電壓，燒保險，無顯示，F(xiàn)031,F005,F068,F052，F(xiàn)004，F(xiàn)O11,F042等故障。
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C98043- A7002-L1維修 C98043-A7002-L4維修， C98043-A7014-L1維修，C98043-A7014-L2維修，C98043-A7004-L1維修，西門子C98043-A7001- L1\L2,C98043-A7002-L4,
L1,C98041-A7004-L6,C98043-A7014-L1/L2