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17 UL Standards
Table 17.2 Maximum Temperature of the Heatsink Plate
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. Apply 100 μm to 250 μm of thermal compound evenly over the full heatsink
plate of the drive.
7.
Use the correct screws to safety the drive to a metal surface (enclosure panel).
17.3
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.
Drive Model
B001 - B012
2001 - 2021
2030 - 2056
2070
196
Model
B001 - B012
2001 - 2021
2030 - 2070
4001 - 4012
4018 - 4038
Table 17.3 Screw Sizes and Tightening Torques
YASKAWA TOEPC7106170YB YASKAWA AC Drive GA500 Installation & Primary Operation
Maximum Temperature of the Heatsink Plate
Screw Size
M5
M5
M5
M6
90 °C (194 °F)
90 °C (194 °F)
80 °C (176 °F)
90 °C (194 °F)
80 °C (176 °F)
Tightening Torque
N∙m (lbf∙in)
2.0 - 2.5
(17.7 - 22.1)
2.0 - 2.5
(17.7 - 22.1)
2.0 - 2.5
(17.7 - 22.1)
4.0 - 5.0
(35.4 - 44.3)
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