Delta ASDA-A2 Series User Manual page 38

Chapter 2 Installation and Storage
Installation
All electrical equipment, including AC servo 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 of the interference can be
eliminated. It is recommended to use Delta's EMI filter to have the best interference
elimination performance.
We assure that it can comply with following rules when AC servo drive and EMI filter are
installed and wired according to user manual:

EN61000-6-4 (2001)

EN61800-3 (2004) PDS of category C2

EN55011+A2 (2007) Class A Group 1
General Precaution
To ensure the best interference elimination performance when using Delta's EMI filter, please
follow the guidelines in this user manual to perform wiring and/or installation. In addition,
please also observe the following precautions:

EMI filter and AC servo drive should be installed on the same metal plate.

Please install AC servo drive on same footprint with EMI filter or install EMI filter as close
as possible to the AC servo drive.

All wiring should be as short as possible.

Metal plate should be grounded.

The cover of EMI filter and AC servo 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.

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
(Please refer to Figure 1 on page B-3).

The connection between the metal saddle and the shielding on both ends of the motor
cable should be correct and well installed. Please refer to Figure 2 on page B-3 for correct
wiring method.
Revision September 2012
A2
ASDA-
2-9