Aerotech Ndrive HPe 10, Hardware Manual

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38 Chapter 2 www.aerotech.com
2.2.4. Minimizing Conducted, Radiated, and System Noise for EMC/CE Com-
pliance
Connections to the drive must be made using shielded cables. D-type connectors must use conductive back
shells with the cable shield clamped to the back shell at each end of the cable.
Aerotech recommends mounting drives and filter components on a conductive panel. The filter should be
mounted close to the drive, minimizing the wire length between the drive and filter.
AC input wiring must be physically separated from motor wiring. High voltage wiring must be physically
separated from low level wires.
Using the lowest possible motor voltage will reduce radiated emission. An isolation transformer with
grounded secondary can be used to minimize the effects of high frequency PWM amplifier currents.
A line filter such as Aerotech’s UFM-ST must be used on the Motor Supply and Control Supply AC inputs.
The following additional changes may be required for EMC compliance and are recommended during initial
EMC system evaluation.
1. Add clamp-on ferrite to the motor feedback cable close to the drive. Aerotech PN ECZ02348, Fair-rite
PN 0446167281
2. Add clamp-on ferrite to the Motor Supply and Control Supply wires, including the ground wire, close to
the drive. Aerotech PN ECZ02347, Fair-rite PN 0446164281
3. Add a ferrite core to the UFM-ST AC input wires. The AC wires and ground wire should be wrapped
around the core one time. Ferrite core: Aerotech PN ECZ02350, Fair-rite PN 2646102002.
4. Add a ferrite core to the motor phase and ground wires close to the drive. All four wires should be
wrapped around the ferrite core once. Ferrite core Aerotech PN ECZ02349, Fair-rite PN 2646626402.
Remove ferrite beads from Aerotech supplied cables if installed.
5. Install a motor filter module MFM10-1 close to the drive. The ferrite core from 5) above should be
located between the drive and the MFM10-1.
N O T E : The Ndrive HPe 10/20/30 is a component designed to be integrated with other electronics. EMC
testing must be conducted on the final product configuration.
Ndrive HPe 10/20/30 Installation and Configuration