Delta VFD-M-D series User Manual

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Delta VFD-M-D series User Manual Manual pdf 146 page image

Appendix B Accessories|VFD-M-D SeriesRevision Jan. 2007, MDE2, SW V1.05 B-3B.2 AMD - EMI Filter Cross ReferenceThe EMI Filter for VFD004M21B-D is RF015M21AA.InstallationAll electrical equipment, including AC motor drives, will generate high-frequency/low-frequency noiseand will interfere with peripheral equipment by radiation or conduction when in operation. By using anEMI filter with correct installation, much interference can be eliminated. It is recommended to useDELTA EMI filter to have the best interference elimination performance.We assure that it can comply with following rules when AC motor drive and EMI filter are installed andwired according to user manual: EN61000-6-4 EN61800-3: 1996 + A11: 2000 EN55011 (1991) Class A Group 1 (1st Environment, restricted distribution)General precaution1. EMI filter and AC motor drive should be installed on the same metal plate.2. Please install AC motor drive on footprint EMI filter or install EMI filter as close as possible tothe AC motor drive.3. Please wire as short as possible.4. Metal plate should be grounded.5. The cover of EMI filter and AC motor drive or grounding should be fixed on the metal plate andthe contact area should be as large as possible.Choose suitable motor cable and precautionsImproper installation and choice of motor cable will affect the performance of EMI filter. Be sure toobserve the following precautions when selecting motor cable.1. Use the cable with shielding (double shielding is the best).2. The shielding on both ends of the motor cable should be grounded with the minimum lengthand maximum contact area.3. Remove any paint on metal saddle for good ground contact with the plate and shielding.