Danaher Motion
04/06
Appendix A
During CE testing a Corcom 6EQ1 line filter was qualified for use with a
P70360 drive and a 15 m motor cable to represent worst case conducted
emissions compliance.
Information on this and other filters can be found at:
Corcom, Inc.
USA 1-800-468-2023 or 847-680-7400
Germany 49-89-857920
http://www.cor.com
NOTE
For complete instructions on wiring a P7000 drive
refer to the Wiring section of this manual.
Motor Power Cable Filtering
In typical applications the P7000 drives do not require additional filtering in
the motor leads. Machines with many drives and long motor power cables
may require and external balun in series with the power motor power cable
to reduce the machine’s conducted emissions. Additional information can be
found in Pacific Scientific Application Notes 106 (“Reducing Motor Drive
Line Noise”) and 107 (“Reducing Motor Drive Radiated Emissions”).
Contact the factory for additional information on Balun use.
A.1.7
GROUNDING CABLE SHIELDS FOR EMC
The Motor Power (J6), Command I/O (J4), and Comm Port (J5) cables must
be shielded and the shields should be connected to PE. The safety PE
connection can be made through connector pin or shell.
Safety grounding of motor cable shields
CAUTION
All cables used with the P7000 drives should be
shielded with the shields connected to PE.
Dangerous voltages, resulting from cable
capacitance, exist on some cable shields if the
shields are not connected to PE ground.
Avoiding crosstalk
CAUTION
To avoid the risk of crosstalk, motor cables should
be kept away from sensitive signal cables such as
telephone and intercommunication lines. All cables
used with the P7000 drives should be shielded with
the shields connected to PE.
EMC testing was performed using a single drive with standard wiring. When
a machine incorporates several drives or is designed for use in an
environment requiring very low emissions additional steps may be
necessary when installing the drives to reduce the overall machine
emissions and/or susceptibility. High frequency grounding of cable shields
may help to reduce radiated and conducted emissions as well as protect
against susceptibility to external and self-generated noise.
M-SD-7AC-01 Rev
D
47