Selection And Wiring Of Regenerative Braking Resistor (On 5.5 Kw To 22 Kw Models) - Hitachi SJ700-2 Instruction Manual
Sj700-2 series
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Also See for SJ700-2:
- Instruction manual (390 pages) ,
- Service manual (81 pages) ,
- Connection manual (47 pages)
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Chapter 2 Installation and Wiring
2.2.5 Selection and wiring of regenerative braking resistor (on 5.5 kW to 22 kW models)
The SJ700-2 series inverter models with capacities of 5.5 to 22 kW have an internal regenerative braking
circuit.
Connecting an optional regenerative braking resistor to RB and P terminals increases the regenerative
torque.
Motor capacity
Model
(kW)
SJ700-055LFF2
SJ700-075LFF2
SJ700-110LFF2
SJ700-150LFF2
SJ700-185LFF2
SJ700-220LFF2
SJ700-055HFF2
SJ700-075HFF2
SJ700-110HFF2
SJ700-150HFF2
SJ700-185HFF2
SJ700-220HFF2
Without a resistor
connected
Regenerative
torque (%)
5.5
20
7.5
20
11
10
15
10
18.5
10
22
10
5.5
20
7.5
20
11
10
15
10
18.5
10
22
10
With a resistor
Minimum connectable
connected
Resistanc
Regenera
e of
Resistanc
tive
connecte
torque
d resistor
(％)
(Ω)
16
100
10
80
10
70
7.5
80
7.5
60
5
50
70
100
70
80
50
80
35
80
35
70
35
50
2 - 24
resistor
Minimum
resistance during
BRD
continuous
usage
operation
e
rate
(Ω)
(％)
16
10
10
10
10
10
7.5
10
7.5
10
5
10
70
10
35
10
35
10
24
10
24
10
20
10
(Ω)
50
50
50
35
35
35
200
150
150
100
100
100
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