Jump to main content

Installing the External EMC Noise Filter

Drive models 2xxxA and 4xxxA must meet conditions in this section to comply with EN 61800-3.

Connect an EMC noise filter that complies with European standards as specified by Yaskawa to the input side (primary side). Refer to External EMC Noise Filter Selection to select the correct EMC noise filter.

Use this procedure to install an EMC noise filter to make equipment and devices added to the drive comply with the EMC Directive.

  1. Install the drive and EMC noise filter on the same grounded metal plate.
  2. Wire the drive and motor.
  3. Ground the wire shielding on the drive side and motor side.
    Figure 1. Wiring the Drive and Motor
    • Drive
    • 10 m (32.8 ft) maximum
    • Motor
    • Metal conduit
    • Grounding wire
    Note:

    • Use a braided shield cable for the drive and motor wiring or put the wires through a metal conduit.

    • The maximum wiring length between the drive and motor is 10 m (32.8 ft). Keep the wire as short as possible.

    • Keep the grounding wire as short as possible.

  4. Use a cable clamp to ground the motor cable to the metal plate.
    Note:

    Make sure that the protective ground wire complies with technical specifications and local safety standards.

    Figure 2. Ground the Shield
    • Braided shield cable
    • Metal plate
    • Cable clamp (conductive)
    Figure 3. EMC Noise Filter and Drive Installation Procedure
    • Grounding surface (Remove any paint or sealant.)
    • Enclosure panel
    • Metal plate
    • Drive
    • Ground the shield.
    • Motor
    • Motor cable (Braided shield cable: 10 m (32.8 ft) maximum)
    • Cable clamp
    • Grounding wire
    • EMC noise filter
  5. To maintain compliance with IEC/EN 61000-3-2 on drive models 2004, 4002, and 4004, install an AC reactor or a DC reactor. Refer to DC Reactor to select a DC reactor.
    Note:

    • The terminal block for the drive main circuit and the terminal block for the DC reactor have different shapes. The drive has a European-style terminal block, and the DC reactor has a round terminal block. Correctly prepare the ends of the wiring.

    • Ground the DC reactor (option) on the back of the mounting base. Remove all paint from the mounting surface of the control panel.