Machines and devices integrated with finless-type drives must satisfy the following conditions for compliance with UL standards:

Note:

Obey the installation conditions specified in this guide to take full advantage of finless-type drives. It is not necessary for drives other than finless-type drives to satisfy the following conditions.

  1. Install finless-type drives into a ventilated enclosure with a minimum enclosure volume shown in Table 1.

    Table 1. Minimum Enclosure Volume

    Model

    Minimum Volume

    cm3 (in3)

    B001 - B006

    2001 - 2012

    9850

    (600)

    B010 - B012

    2018 - 2042

    4001 - 4023

    15750

    (960)

    2056 - 2070

    4031, 4038

    42000

    (2560)

  2. Keep the ambient temperature lower than 35 °C (95 °F) in your application.

  3. Keep the drive heatsink plate temperature lower than the maximum temperature shown in Table 2 in your application.

    Use U4-08 [Heatsink Temperature] to monitor the drive heatsink temperature.

    Table 2. Maximum Temperature of the Heatsink Plate

    Model

    Maximum Temperature of the Heatsink Plate

    B001 - B012

    90 °C (194 °F)

    2001 - 2021

    90 °C (194 °F)

    2030 - 2070

    80 °C (176 °F)

    4001 - 4012

    90 °C (194 °F)

    4018 - 4038

    80 °C (176 °F)

  4. Make sure that the metal surface to which you will install the drive meets these specifications:

    • Flatness: ≤ 0.2 mm (0.0078 in)

    • Roughness: ≤ 25 S

  5. Make sure that there is sufficient space for wiring and airflow to cool the drive.

    • 30 mm (1.18 in) minimum from each side

    • 100 mm (3.94 in) minimum from top and bottom

  6. The recommended thermal compound is X-23-7795 from Shin-Etsu Chemical Co., Ltd., or equivalent. Apply 100 μm to 250 μm of thermal compound over the full heatsink plate of the drive.

  7. Use the correct screws to safety the drive to a metal surface (enclosure panel). Table 3 shows the screw sizes and tightening torques.

    Monitor the temperature of the external heatsink at the top center of the junction between the external heatsink and the drive.

    Table 3. Screw Sizes and Tightening Torques

    Drive Model

    Screw Size

    Tightening Torque

    N∙m (lbf∙in)

    B001 - B012

    M5

    2.0 - 2.5

    (17.7 - 22.1)

    2001 - 2021

    M5

    2.0 - 2.5

    (17.7 - 22.1)

    2030 - 2056

    M5

    2.0 - 2.5

    (17.7 - 22.1)

    2070

    M6

    4.0 - 5.0

    (35.4 - 44.3)

    4001 - 4012

    M5

    2.0 - 2.5

    (17.7 - 22.1)

    4018 - 4038

    M5

    2.0 - 2.5

    (17.7 - 22.1)