SJ700
2
Inverter
Motor C
ontrol
Acc
e
ssor
ies
5–7
Dynamic Braking
Selection Tables
The SJ700
2
Series 200V and 400V class inverter models in the 1/2 to 30 HP range have internal
braking units. Additional stopping torque is available by adding external resistors. The required
braking torque depends on your particular application. Other tables in this section will help you
choose the proper resistor.
NOTE:
For inverters larger than 30 HP (22kW), an external braking unit will be required.
Contact your distributor or Hitachi for assistance.
1/2 to 30 HP (0.4 to 22 kW)
Without
External Resistor
Using Optional
External Resistor
Performance @
Minimum Resistance
Minimum
Resistance
@ 100%
Braking
Duty
Cycle,
Ohms
Voltage
Class
Model Number
Motor
HP
Braking
Unit
Braking
Torque
@ 60Hz,
%
External
Resistance,
Ohms
Braking
Torque
@60Hz,
%
Minimum
Resistance,
Ohms
Max.
Braking
Duty
Cycle,
%
200V
SJ700–004LFUF2
0.5
Built-in
20
48
150
48
10
150
SJ700–007LFUF2
1
Built-in
20
48
150
48
10
150
SJ700–015LFUF2
2
Built-in
20
32
150
32
10
110
SJ700–022LFUF2
3
Built-in
20
32
150
32
10
110
SJ700–037LFUF2
5
Built-in
20
32
110
32
10
110
SJ700–055LFUF2
7.5
Built-in
20
16
140
16
10
50
SJ700–075LFUF2
10
Built-in
20
10
150
10
10
50
SJ700–110LFUF2
15
Built-in
10
10
110
10
10
50
SJ700–150LFUF2
20
Built-in
10
7.5
110
7.5
10
35
SJ700–185LFU2
25
Built-in
10
7.5
90
7.5
10
35
SJ700–220LFU2
30
Built-in
10
5
110
5
10
35
400V
SJ700–007HFUF2
SJ700–007HFEF2
1
Built-in
20
100
150
70
10
300
SJ700–015HFUF2
SJ700–015HFEF2
2
Built-in
20
100
150
70
10
300
SJ700–022HFUF2
SJ700–022HFEF2
3
Built-in
20
70
150
70
10
300
SJ700–040HFUF2
SJ700–040HFEF2
5
Built-in
20
70
150
70
10
200
SJ700–055HFUF2
SJ700–055HFEF2
7.5
Built-in
20
70
130
70
10
200
SJ700–075HFUF2
SJ700–075HFEF2
10
Built-in
20
70
150
35
10
150
SJ700–110HFUF2
SJ700–110HFEF2
15
Built-in
10
50
130
35
10
150
SJ700–150HFUF2
SJ700–150HFEF2
20
Built-in
10
35
140
24
10
100
SJ700–185HFU2/E
25
Built-in
10
35
140
24
10
100
SJ700–220HFU2/E
30
Built-in
10
35
110
20
10
100
