Brake resistor selection
Brake resistors with different power ratings are available to dissipate braking
energy when the frequency converter is in generator mode.
The adjacent tables list the optimal combination of frequency converter,
brake chopper and brake resistor and the number of components required to
operate one frequency converter with respect to a given moderating ratio OT.
OT (On Time percentage) Braking ratio
Tb Braking time
Tc Engineering cycle time in application
Fig. 10-14: Braking ratio
The frequency converter models, brake chopper types and the
brake resistor types listed in the tables are abbreviations. For def‐
inition of type codes, see chapter 1.3 "Type Coding" on page 13.
Model FELB Typecode
FELB
Quantity
FELR Typecode FELR Type
FELR
Quantity
0K40 Internal – 0080-N750R-D 750Ω/80W 1
0K75 Internal – 0080-N750R-D 750Ω/80W 1
1K50 Internal – 0260-N400R-D 400Ω/260W 1
2K20 Internal – 0260-N250R-D 250Ω/260W 1
4K00 Internal – 0390-N150R-D 150Ω/390W 1
5K50 Internal – 0520-N100R-D 100Ω/520W 1
7K50 Internal – 0780-N075R-D 75Ω/780W 1
11K0 Internal – 1K04-N050R-D 50Ω/1040W 1
15K0 Internal – 1K56-N040R-D 40Ω/1560W 1
18K5 FELB02.1N-30K0 1 04K8-N032R-A 32Ω/4.8kW 1
22K0 FELB02.1N-30K0 1 04K8-N27R2-A 27.2Ω/4.8kW 1
30K0 FELB02.1N-30K0 1 06K0-N020R-A 20Ω/6.0kW 1
37K0 FELB02.1N-45K0 1 09K6-N016R-A 16Ω/9.6kW 1
45K0 FELB02.1N-45K0 1 09K6-N13R6-A 13.6Ω/9.6kW 1
55K0 FELB02.1N-30K0 2 06K0-N020R-A 20Ω/6.0kW 2
75K0 FELB02.1N-45K0 2 09K6-N13R6-A 13.6Ω/9.6kW 2
90K0 FELB02.1N-45K0 3 06K0-N020R-A 20Ω/6.0kW 3
Tab. 10-9: Brake resistor selection_OT = 10 %
Bosch Rexroth AG DOK-RCON02-FV*********-IB08-EN-P202/259
Rexroth Frequency Converter Fv
Accessories
To Next Page
Loading...
Need help?
General
