T
D
App
endix
D
-
T
ehnial
data
D.8
Current
derating
dep
ending
on
the
output
frequenies
All
b maXX® BM3400
devices were developed in such a way, that the specified output-rating from an electric
output frequency of
>
15Hz is continuously permissible, i.e. in the S1 operation. If the static converter out-
put frequency is longer than 5s below 15Hz, the continuously permissible output current must be reduced
according to the following characteristic curve.
0%
20%
40%
60%
80%
100%
120%
0Hz
5Hz
10Hz
15Hz
20Hz
25Hz
Figure D.7: Derating at output frequencies
<
15Hz
The following cases of operation can be concerned thereof:
• Applications with speed control without positioning
• Operations with stop control
• Applications, where a mechanic blocking can occur, e.g. when starting cold extruders.
The following applications typically are not concerned:
• Typical positioning applications
• Applications with holding brake instead of a stop control
• Applications with standstill monitoring or block monitoring
If there is a change of output frequency
≥
15Hz/s, derating is not necessary.
186
Instrution
Manual
b
maXX®
BM3400
from
206
Do
ument
No.:
5.07013.03
Baumueller
Kamenz
GmbH
Содержание b maXX BM3400 Series
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