Delta C2000 Series User Manual page 98

EMC 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
To ensure EMC filter can maximize the effect of suppressing the interference of AC motor drive, the
installation and wiring of AC motor drive should follow the user manual. In addition, be sure to observe
the following precautions:
EMI filter and AC motor drive should be installed on the same metal plate.
Please install AC motor drive on footprint EMI filter or install EMI filter as close as possible to the AC
motor drive.
Please wire as short as possible.
Metal plate should be grounded.
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.
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.
Use the cable with shielding (double shielding is the best).
The shielding on both ends of the motor cable should be grounded with the minimum length and
maximum contact area.
Remove any paint on metal saddle for good ground contact with the plate and shielding.
The connection of the cable with shielding and the metal plate must be correct, use saddle and metal
plate to fix the shielding on both ends of the motor cable. Please refer to Figure 2 for correct
connection.
Chapter 7 Optional Accessories
Remove any paint on metal saddle for good ground contact with
the plate and shielding.
saddle
Saddle on both ends
Saddle on one end
7-17
the plate with grounding