Hitachi SJ300 Series

SJ300 Inverter
Motor Control
Accessories
5–11
The table below lists the performance of 400V-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 combination
parallel / series configuration. Please refer to the braking unit manual for detailed wiring
diagrams.
–550LFU BRD–E2–30K
HRB3 x (2) parallel 8.5 2400 20 30
HRB3 x (3) parallel 5.7 3600 20 40
HRB3 x (4) parallel 4.3 4800 20 60
200V Class
Braking Unit Dynamic Braking Resistor Selection
Max.
Braking
Torque,
%
Model Number
SJ300
Type
Type
x (quantity)
Series or
Parallel
Total
Ohms
Total
Watts
Max.
Duty
Cycle,
%
Braking
Unit
HRB3 x (6)...
(3) parallel x 2 series
Inverter
Example configuration
400V Class
Braking Unit Dynamic Braking Resistor Selection
Max.
Braking
Torque,
%
Model Number
SJ300
Type
Type
x (quantity)
Series /
Parallel
Total
Ohms
Total
Watts
Max.
Duty
Cycle,
%
–150HFU/HFE
BRD–EZ2
HRB1 x (2) series 100 800 10 40
HRB2 x (2) series 70 1200 10 60
HRB3 x (2) series 34 2400 10 110
BRD–EZ2–30K
HRB3 x (4) (2) parallel
x 2 series
17 4800 10 190
HRB3 x (6) (3) parallel
x 2 series
11.3 7200 10 200
–185HFU/HFE
BRD–EZ2
HRB1 x (2) series 100 800 10 40
HRB2 x (2) series 70 1200 10 50
HRB3 x (2) series 34 2400 10 90
BRD–EZ2–30K
HRB3 x (4) (2) parallel
x 2 series
17 4800 10 170
HRB3 x (6) (3) parallel
x 2 series
11.3 7200 10 200
–220HFU/HFE
BRD–EZ2
HRB1 x (2) series 100 800 10 35
HRB2 x (2) series 70 1200 10 45
HRB3 x (2) series 34 2400 10 80
BRD–EZ2–30K
HRB3 x (4) (2) parallel
x 2 series
17 4800 10 150
HRB3 x (6) (3) parallel
x 2 series
11.3 7200 10 200