2.2 Mechanical Installation
YASKAWA ELECTRIC
SIEP C710606 44B YASKAWA AC Drive T1000V Technical Manual
43
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Heatsink Selection Example
This example shows heatsink selection for a CIMR-TC2V0006 drive in Normal Duty (ND) mode. The data required are
listed in the table below.
Heatsink Selection by Thermal Resistance
Substituting the example values into the formula gives:
The heatsink must have a thermal resistance lower than 1.7 K/W. When selecting the heatsink, apply a safety margin to
the calculated value in order to ensure tripless drive operation, even if the installation conditions change (temporary
higher temperature, loss of cooling ability of the external heatsink due to dust, etc.).
Feasibility Check of a Selected Heatsink
For example, a heatsink with R
θ
EHS
= 1.6 K/W would have a heatsink temperature of:
The selected heatsink can be used, but considering that the heatsink area is probably larger than the drive footprint and
the ambient conditions could change (reduced heatsink cooling ability by dirt, etc.), a heatsink with a lower R
θ
EHS
should
be chosen (e.g., R
θ
EHS
= 1.1 K/W, resulting in T
HSP
= 72.2ºC) .
Item
Value
P
Loss
27.5 W
T
HSP_max
90ºC
T
Amb
40ºC
R
θ
HSP
0.05 K/W
R
θ
HSP-EHS
A
th
H = 128 mm, D = 68 mm,
A
th
= 0.7
x
0.128 m
x
0.068 m = 6.1
x
10
-3
m
2
λ
Comp
0.8 W/(m
x
K)
Thermal conductivity of “Thermal Compound G746” (Shin-Etsu Chemical Co., Ltd.)
d
Comp
Recommended compound thickness: 100
μ
m
R
θ
HSP_EHS
=
0.02 K/W
100
μ
m
0.8 W/(m
K)
×
6.1
×
10
-3
m
2
=
R
θ
EHS_max
=
90
͠
- 40
͠
27.5 W
- 0.05 K/W - 0.02 K/W
(
)
= 1.74 K/W
T
HSP
= 27.5 W
0.05 K/W + 0.02 K/W
+ 1.6 K/W) + 40
͠
= 85.9
͠
Содержание T1000V
Страница 10: ...10 YASKAWA ELECTRIC SIEP C710606 44B YASKAWA AC Drive T1000V Technical Manual...
Страница 30: ...1 4 Component Names 30 YASKAWA ELECTRIC SIEP C710606 44B YASKAWA AC Drive T1000V Technical Manual...
Страница 44: ...2 2 Mechanical Installation 44 YASKAWA ELECTRIC SIEP C710606 44B YASKAWA AC Drive T1000V Technical Manual...
Страница 100: ...4 10 Test Run Checklist 100 YASKAWA ELECTRIC SIEP C710606 44B YASKAWA AC Drive T1000V Technical Manual...
Страница 232: ...5 12 U Monitor Parameters 232 YASKAWA ELECTRIC SIEP C710606 44B YASKAWA AC Drive T1000V Technical Manual...
Страница 280: ...6 9 Troubleshooting without Fault Display 280 YASKAWA ELECTRIC SIEP C710606 44B YASKAWA AC Drive T1000V Technical Manual...
Страница 294: ...7 5 Drive Replacement 294 YASKAWA ELECTRIC SIEP C710606 44B YASKAWA AC Drive T1000V Technical Manual...
Страница 306: ...8 5 Communication Options 306 YASKAWA ELECTRIC SIEP C710606 44B YASKAWA AC Drive T1000V Technical Manual...
Страница 316: ...A 6 Drive Derating Data 316 YASKAWA ELECTRIC SIEP C710606 44B YASKAWA AC Drive T1000V Technical Manual...
Страница 422: ...D 4 Safe Disable Input Precautions 422 YASKAWA ELECTRIC SIEP C710606 44B YASKAWA AC Drive T1000V Technical Manual...