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TECHNICAL SPECIFICATIONS
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Ta (°C)
Ta (°C)
fsw >
fsw,nom
(2)
fsw =
fsw,nom=
4 kHz
(1)
fsw >
fsw,nom
(2)
fsw =
fsw,nom=
2 kHz
(1)
fsw = fsw,nom=
4 kHz
(1)
fsw > fsw,nom
(2)
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Io,
no
m
(%
)
Ta (°C)
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-10
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Io,
no
m
(%
)
Ta (°C)
Frame Size E
fsw = fsw,nom=
2 kHz
(1)
fsw > fsw,nom
(2)
Frame Size A ... D
Frame A ... D
Frame E
(1)
With the inverter thermal management function enabled (if disabled see note (2) below) or fsw
≤
2 kHz to frame size A...D and fsw
≤
1.5
kHz to frame size E (in this case regardless of the inverter thermal management function).
(2)
This curve must also be used when fsw = fsw,nom and the inverter thermal management function is disabled.
Figure 8.2:
Current derating according to the ambient temperature (note that the current derating also depends on the switching frequency
(fsw) set in parameter C1.3.1 (User Switching Frequency))
8.2.3 Derating factor according to the Switching Frequency (FDfsw)
The rated and maximum switching frequency of CFW900 are defined in
. It is possible to operate with
a frequency above the rated one, limited to the maximum frequency; however, in these cases it is necessary to
derating the rated current, as shown in
CFW900 | 103
Summary of Contents for CFW900
Page 2: ......
