Lust CDA3000 - Page 172

Engineering Guide CDA3000
3-89
3 Selection of inverter module
DE
EN
1
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3
4
5
6
7
A
Parallel/series configuration of braking resistors
By means of a parallel configuration of braking resistors the peak braking
power can be adapted to the specific application.
By means of a series configuration the continuous braking power can be
adapted to the specific application.
Figure 3.43 Parallel configuration of two resistors
Figure 3.44 Series configuration of tworesistors
Figure 3.45 Calculation of peak braking power
Table 3.39
Table 3.40
P
S
= Peak braking power in [W]
U = DC-link voltage in [V]
(390 V or 750 V)
R
BR
= Resistance of braking
resistor in [
Ω
]
R1
R2
replaceable
by
R
R
1
+ R
2
R
1
R
2
.
R =
R1
R2
replaceable
by
R
R
1
+ R
2
R =
R
BR
P
S =
U²