Installation manual

Danaher Motion Kollmorgen Wiring
SERVOSTAR
®
S and SERVOSTAR
®
CD Series 16
CE Filtering Techniques
The SERVOSTAR drive system (BUS Module, drive, motor) meets the CE
Mark standards stated in the front of this manual. It is imperative for you to
apply proper bonding and grounding techniques, described earlier in this section,
when incorporating EMC noise filtering components for the purpose of meeting
this standard.
Noise currents often occur in two types. The first is conducted emissions that are
passed through ground loops. The quality of the system grounding scheme
inversely determines the noise amplitudes in the lines. These conducted
emissions are of a common-mode nature from line to neutral (or ground). The
second is radiated high-frequency emissions usually capacitively coupled from
line-to-line and are differential in nature.
To properly mount the filters, the enclosure should have an unpainted metallic
surface. This allows for more surface area to be in contact with the filter housing
and provides a lower impedance path between this housing and the back plane.
The back panel, in turn, has a high frequency ground strap connection to the
enclosure frame or earth ground.
Input Power Filtering
The Danaher Motion Kollmorgen SERVOSTAR S and SERVOSTAR CD
electronic system components require EMI filtering in the input power leads to
meet the conducted emission requirements for the industrial environment. This
filtering blocks conducted-type emissions from exiting onto the power lines and
provides a barrier for EMI on the power lines.
Care must be taken to adequately size the system. The type of filter is based on
the voltage and current rating of the system and whether the incoming line is
single or three-phase. One input line filter is used for multi-axis control
applications. These filters are mounted as close to the incoming power as
possible so noise is not capacitively coupled into other signal leads and cables.
Similarly, care should be taken when routing wires from the load side of the
filter to the BUS Module. These lines may be noisy and should be separated
from other sensitive cabling to avoid unwanted coupling of noise. Several
manufacturers of these filters are listed below. They should be able to
recommend the best filter design for most typical motor control applications.
Danaher Motion Kollmorgen has also provided specific filters recommendations
that adequately attenuate the conducted noise to levels well below the CE limits.
The recommendations are:
• Filter should be mounted on the same panel as the drive and BUS Module.
• Filter should be mounted as close as possible to incoming cabinet power.