Hitachi SJ700B SERIES User Manual

Chapter 2 Installation and Wiring
2 - 21
2.2.5 Selection and wiring of regenerative braking resistor (on 5.5 kW to 30 kW models)
The SJ700B series inverter models with capacities of 5.5 to 30 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)
SJ700B-055HFF 5.5 20 70 100 70 10 200
SJ700B-075HFF 7.5 20 70 100 70 10 200
SJ700B-110HFF 11 20 70 50 35 10 150
SJ700B-150HFF 15 10 50 70 35 10 150
SJ700B-185HFF 18.5 10 35 80 24 10 100
SJ700B-220HFF 22 10 35 70 24 10 100
SJ700B-300HFF 30 10 35 50 20 10 100

Hitachi SJ700B SERIES Specifications

General

Brand	Hitachi
Model	SJ700B SERIES
Category	Inverter
Language	English