Emi Filter Installation - Delta C2000 series User Manual

Chapter 7 Optional Accessories C2000 Series
Applicable
Model
EMI Filter
VFD2800C43A/E;
MIF3800 &
VFD3150C43A/E;
Ring Cores *2
VFD3550C43A/E;
＊ Please contact Delta for VFD4500C43A/E EMI filter

EMI Filter Installation

All electrical equipment, including AC motor drives, will generate high-frequency/low-frequency noise and will
interfere with peripheral equipment by radiation or conduction when in operation. By using an EMI filter with correct
installation, much interference can be eliminated. It is recommended to use DELTA 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 and wired
according to user manual:
EN61000-6-4

EN61800-3: 1996

EN55011 (1991) Class A Group 1 (1

General precaution
1. 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 to the 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 and the contact area
should be as large as possible.
Choose suitable motor cable and precautions
Improper installation and choice of motor cable will affect the performance of EMI filter. Be sure to observe 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 length and maximum
contact area.
3. Remove any paint on metal saddle for good ground contact with the plate and shielding.
http://www.dem-uk.com/roxburgh/products/industrial_emc_filters/mif3_three_phase_indu
strial_multi_stage_drive_filters/
MIF3800 Three Phase Industrial Drive Filters - Very High Performance 800 Amps
Ring Core Part No. : T102-15
st
Environment, restricted distribution)
Remove any paint on metal saddle for good ground contact with
the plate and shielding.
saddle
Reference Website
the plate with grounding
Figure 1
7-10