Sj300 Dynamic Braking Selection Tables - Hitachi SJ300 Series Instruction Manual

SJ300
The SJ300 Series 200V and 400V class inverter models in the 1/2 to 15 hp range have internal
braking units. Additional stopping torque is available by adding external resistors. The required
Dynamic Braking
braking torque depends on your particular application. Other tables in this section will help you
Selection Tables
choose the proper resistor.
1/2 to 15 hp (0.4 to 11 kW)
Voltage
Model Number
Class
SJ300–004LFU
SJ300–007LFU
SJ300–015LFU
SJ300–022LFU
200V
SJ300–037LFU
SJ300–055LFU
SJ300–075LFU
SJ300–110LFU
SJ300–007HFU/E
SJ300–015HFU/E
SJ300–022HFU/E
400V SJ300–040HFU/E
SJ300–055HFU/E
SJ300–075HFU/E
SJ300–110HFU/E
Without
External Resistor
Braking
Motor Braking Torque
hp Unit @ 60Hz,
%
1/2 Built-in 50
1 Built-in 50
2 Built-in 50
3 Built-in 20
5 Built-in 20
7.5 Built-in 20
10 Built-in 20
15 Built-in 10
1 Built-in 50
2 Built-in 50
3 Built-in 20
5 Built-in 20
7.5 Built-in 20
10 Built-in 20
15 Built-in 10
Using Optional
External Resistor Minimum Resistance
Braking
External Minimum
Torque
Resistance, Resistance,
@60Hz,
Ohms Ohms
%
50 200
50 200
35 200
35 160
35 100
17 80
17 80
17 70
100 200
100 200
100 200
100 140
70 100
70 100
70 70
SJ300 Inverter
Performance @
Minimum
Resistance
@ 100%
Max.
Braking
Braking
Duty
Duty
Cycle,
Cycle,
Ohms
%
50 10 150
50 10 150
35 10 100
35 10 100
35 10 100
17 10 50
17 10 50
17 10 50
100 10 300
100 10 300
100 10 300
70 10 200
70 10 200
50 10 150
50 10 150
5–7