36 Rockwell Automation Publication 2198-UM001M-EN-P - November 2022
Chapter 2 Plan the Kinetix 5500 Drive System Installation
Enclosure Selection
This example is provided to assist you in sizing an enclosure for your
Kinetix 5500 drive system. You need heat dissipation data from all components
that are planned for your enclosure to calculate the enclosure size (refer to
Table 17 on page 36
).
With no active method of heat dissipation (such as fans or air conditioning),
either of the following approximate equations can be used.
If the maximum ambient rating of the Kinetix 5500 drive system is 50 °C
(122 °F) and if the maximum environmental temperature is 20 °C (68 °F), then
T=30. In this example, the total heat dissipation is 416 W (sum of all
components in enclosure). So, in the equation below, T=30 and Q=416.
In this example, the enclosure must have an exterior surface of at least 2.99 m
2
.
If any portion of the enclosure is not able to transfer heat, do not include that
value in the calculation.
Because the minimum cabinet depth to house the Kinetix 5500 system
(selected for this example) is 300 mm (11.8 in.), the cabinet must have
approximately the following dimensions (height x width x depth):
1500 x 700 x 300 mm (59.0 x 27.6 x 11.8 in.).
1.5 x (0.300 x 0.70) + 1.5 x (0.300 x 2.0) + 1.5 x (0.70 x 2.0) = 3.31 m
2
Because this cabinet size is considerably larger than what is necessary to house
the system components, it can be more efficient to provide a means of cooling
in a smaller cabinet. Contact your cabinet manufacturer for options available
to cool your cabinet.
Metric Standard English
Where T is the temperature difference between inside
air and outside ambient (°C), Q is the heat that is
generated in the enclosure (Watts), and A is enclosure
surface area (m
2
). The exterior surface of all six sides of
an enclosure is calculated as follows:
Where T is the temperature difference between inside
air and outside ambient (°F), Q is the heat that is
generated in enclosure (Watts), and A is enclosure
surface area (ft
2)
. The exterior surface of all six sides of
an enclosure is calculated as follows:
A = 2dw + 2dh + 2wh A = (2dw + 2dh + 2wh) /144
Where d (depth), w (width), and h (height) are in meters.
A =
0.38 (416)
1.8 (30) - 1.1
= 2.99 m
2
Table 17 - Power Dissipation Specifications
Kinetix 5500 Drive
Cat. No.
Frame
Size
Usage as Percentage of Rated Power Output
(watts)
20%40%60%80%100%
2198-H003-ERSx
112 25 37 50 62
2198-H008-ERSx
2198-H015-ERSx
240 80 120 160 2002198-H025-ERSx
2198-H040-ERSx
2198-H070-ERSx 364 128 192 256 320