Operating conditions
Instruction handbook bmaXX 5000
Document No.: 5.09021.19 Baumüller Nürnberg GmbH
56
of 346
3.3
Below
rated input
voltage
m Mains rectifier units BM517X, BM519X
The rated voltage is 3 x 400 V
The DC link voltage must be reduced when operating with input voltage lower than 400 V.
Figure 27: Derating: DC link voltage as a function of the power supply voltage
DC link voltage device
Power supply voltage
Output power device
P
rated
Continuous operation
permitted
Power supply voltage
Figure 28: Derating: Output power as a function of the power supply voltage
The output power of the device is calculated by multiplying the output current
and the output voltage.
S
out
= U
out
x I
out
x 3
It is necessary to reduce the output current between 400 V and 528 V in order
to comply with the curve/area.
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