Baumuller b maXX BM3400 Series - D.8 Current derating depending on the output frequencies

T D App endix D - Tehnial data
D.8 Current derating dep ending on the output frequenies
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 b e c oncerned thereof:
• Applications with speed control without positioning
• Operations with stop control
• Applications, where a mechanic blocking c a n 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 Instrution Manual b maXX ® BM3400
from 206 Doument No.: 5.07013.03 Baumueller Kamenz GmbH