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Engineering Guide CDA3000
3 Selection of inverter module
Example: Calculation example for Figure 3.41
• Inverter module CDA34.005
• Minimum ohmic resistance
of an external braking resistor 180 Ω
• Load cycle see Figure 3.41
1. Calculation with LUDRIVE
Figure 3.42 Calculation of effective braking power with LUDRIVE
2. Choice of braking resistor (See section 6.3)
Braking resistor BR-270.02,541 was chosen
Peak braking power: 2080 W
Continuous braking power: 300 W
Resistance: 270 Ω
The resistance must not be less than the minimum ohmic connected load
permitted by the inverter module.
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