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Chapter 2 Installation and Wiring
2 - 20
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.
Without a resistor
connected
With a resistor
connected
Minimum connectable
resistor
Model
Motor capacity
(kW)
Regenerative
torque (%)
Resistanc
e of
connecte
d resistor
(Ω)
Regenera
tive
torque
(％)
Resistanc
e
(Ω)
BRD
usage
rate
(％)
Minimum
resistance during
continuous
operation
(Ω)
SJ700-055LFF2
5.5 20 16 100 16 10 50
SJ700-075LFF2
7.5 20 10 80 10 10 50
SJ700-110LFF2
11 10 10 70 10 10 50
SJ700-150LFF2
15 10 7.5 80 7.5 10 35
SJ700-185LFF2
18.5 10 7.5 60 7.5 10 35
SJ700-220LFF2
22 10 5 50 5 10 35
SJ700-055HFF2
5.5 20 70 100 70 10 200
SJ700-075HFF2
7.5 20 70 80 35 10 150
SJ700-110HFF2
11 10 50 80 35 10 150
SJ700-150HFF2
15 10 35 80 24 10 100
SJ700-185HFF2
18.5 10 35 70 24 10 100
SJ700-220HFF2
22 10 35 50 20 10 100