日立电梯无机房变频器HELG7F-4V9 4V8-8/11/15显示P9多数是PG卡坏,少数是编码器坏或编码器断线,更换PG卡不用调试,更换编码器则要重新做磁极H7-15-4GA1、H7-11-4GA1,EP4147B-C,H7-22-4GA1 H7-18.5-4GA1 4GA7,ER9 HELG7F-4V8-8/11/15 HELG7-4V7 4V9-11 HELG7F-4V9-8/11/15 4V7 AR2 DCF OH1 H7F-11.0-4GA7 H7F-8.0-4GA7
(https:广州日立电梯变频器维修李春发13302251238)
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