Hitachi SJ300 Series Instruction Manual page 222

5–10
Dynamic Braking
The table below lists the performance of 200V-class inverter models with the optional external
braking units. In some cases, the resistor selection specifies multiple resistors in a parallel,
series, or combination parallel/series configuration. The example diagram shows a parallel
configuration. Please refer to the braking resistor documentation for detailed wiring diagrams.
Inverter
200V Class
Braking Unit
Model Number
Type
SJ300
BRD–E2
–150LFU
BRD–E2–30K
BRD–E2
–185LFU
BRD–E2–30K
BRD–E2
–220LFU
BRD–E2–30K
–300LFU BRD–E2–30K
–370LFU BRD–E2–30K
–450LFU BRD–E2–30K
Example configuration
Braking
Unit
Dynamic Braking Resistor Selection
Type Series or Total
x (quantity) Parallel Ohms
HRB1 —
HRB2 —
HRB3 —
HRB3 x (2) parallel 8.5
HRB3 x (3) parallel 5.7
HRB3 x (4) parallel 4.3
HRB1 —
HRB2 —
HRB3 —
HRB3 x (2) parallel 8.5
HRB3 x (3) parallel 5.7
HRB3 x (4) parallel 4.3
HRB1 —
HRB2 —
HRB3 —
HRB3 x (2) parallel 8.5
HRB3 x (3) parallel 5.7
HRB3 x (4) parallel 4.3
HRB3 x (2) parallel 8.5
HRB3 x (3) parallel 5.7
HRB3 x (4) parallel 4.3
HRB3 x (2) parallel 8.5
HRB3 x (3) parallel 5.7
HRB3 x (4) parallel 4.3
HRB3 x (2) parallel 8.5
HRB3 x (3) parallel 5.7
HRB3 x (4) parallel 4.3
HRB3 x (4) parallel
Max.
Max. Braking
Total Duty Torque,
Watts Cycle, %
%
50 400 10 30
35 600 10 35
17 1200 10 60
2400 20 110
3600 20 150
4800 20 200
50 400 10 25
35 600 10 30
17 1200 10 50
2400 20 90
3600 20 130
4800 20 170
50 400 10 25
35 600 10 30
17 1200 10 45
2400 20 80
3600 20 110
4800 20 150
2400 20 55
3600 20 80
4800 20 110
2400 20 45
3600 20 65
4800 20 90
2400 20 35
3600 20 50
4800 20 75