Mechanical Installation (T10 to T12 Models)
‑105‑
Table 5–2 Parameters of a cabinet with top‑mounted fans
AC Drive Model Quantity of Fans Total Air Volume
(CFM)
Effective Area of
Cabinet Top Air
Inlet (mm
2
)
Max. Air Volume
Required by Fan
(CFM)
Effective Area of
Cabinet Top Air
Outlet (mm
2
)
T9 (132 kW) 2 541 31809 649 S = 0.942 x N x
(Dout
2
– DHUB
2
)
In the preceding
formula, N
indicates the
quantity of top‑
mounted fans,
Dout indicates the
diameter of the
fan, and DHUB
indicates the
diameter of the
fan hub.
T9 (160 kW) 2 620 31809 744
T10 (200 kW) 2 586 31809 703
T10 (220 kW) 2 722 31809 866
T11 (250 kW) 3 789 47713 947
T11 (280 kW) 3 882 47713 1058
T12 (315 kW) 3 644 47713 773
T12 (355 kW) 3 796 47713 955
T12 (400 kW) 3 796 47713 955
Note
● CFM = 0.0283 m
3
/min
● "Actual Effective Area" indicates through‑hole area.
As shown in the following figure, the heat dissipation duct of the drive must be
isolated in the cabinet to prevent the hot air from circulating in the cabinet. Use an air
deflector for isolation to ensure that the hot air of the drive can be exhausted from
the heat dissipation hole on the top of the cabinet.
Figure 5‑3 Air deflector in the cabinet
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