Our Hitachi Sj300 Inverter is frequently tripping with fault code E21.4. The inverter is placed in Ring Frame textile machinery. We had removed the cooling fan from inverter and placed a Pneumafil air suction at the top for cooling purpose. How to Solve the problem?

Asked by Praveen on 09/25/2009 1  Answer

ManualsOnline posted an answer 15 years, 1 month ago

The ManualsOnline team has found the manual for this product! We hope it helps solve your problem. Get the Manual Here

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