Minimizing Noise for EMC/CE Compliance

IMPORTANT: The XL4s is a component designed to be integrated with other electronics. EMC testing must be conducted on the final product configuration.

To reduce electrical noise, observe the following motor feedback and input power wiring techniques.

  1. Separate motor and power wiring from encoder and I/O wiring.
  2. Mount drives, power supplies, and filter components on a conductive panel. Mount line filters close to the drive to keep the wire length between the drive and filter to a minimum. Use a line filter, such as Aerotech’s UFM-ST, on the Control Supply AC inputs.

The following additional changes could be required for EMC compliance and are recommended during initial EMC system evaluation.

  1. Add a clamp-on ferrite to the motor feedback cable close to the drive.
    [Aerotech PN ECZ02348, Fair-rite PN 0446167281]
  2. Add a ferrite core to the UFM-ST AC input wires. Wrap the AC wires and ground wire around the core one time.
    [Ferrite core: Aerotech PN ECZ02350, Fair-rite PN 2646102002]