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AGARWAL

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AGARWAL


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RE: POWERFLEX VFD 753 ISSUE

Posted By AGARWAL Mar 27, 2026 02:08:05 PM
Found In Egroup: Drives, Motion Control & Low Voltage Products \ view thread
Hi @Enrique, I have already checked both the articles and eliminated all the reasons provided in the articles. I am not able to found the reason of Earth fault in my brand new VFD. -------------------------------------------

POWERFLEX VFD 753 ISSUE

Posted By AGARWAL Mar 25, 2026 12:48:00 AM
Found In Egroup: Drives, Motion Control & Low Voltage Products \ view thread
Dear All, We have a brand new Powerflex VFD 753 of 300HP, 400VAC rating. After installation as per manual, we connected input power cables and motor cables was disconnected from VFD side. After charging the VFD, We observed a DC voltage buildup reaching 588 VDC. However, the following faults were identified ...