Chapter 2 Installation and Wiring
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(4) Recommended cable gauges, wiring accessories, and crimp terminals
Note: For compliance with CE and UL standards, see the safety precautions concerning EMC and the
compliance with UL and cUL standards under Safety Instructions.
The table below lists the specifications of cables, crimp terminals, and terminal screw tightening
torques for reference.
Applicable device
Motor
output
(kW)
Applicable inverter
model
Gauge of
power line
cable (mm
2
)
(Terminals: R,
S, T, U, V, W,
P, PD, and N)
Grounding
cable (mm
2
)
External braking
resistor across
terminals P and
RB (mm
2
)
Size of
terminal
screw
Crimp
terminal
Tightening
torque (N-m)
Earth-leakage
breaker (ELB)
Magnetic
contactor
(MC)
11 SJ700B-110LFF/LFUF 14 14 14 M5 R14-5 2.4(MAX4.0) RX100 (75A) HK50
15 SJ700B-150LFF/LFUF 22 22 14 M6 22-6 4.0(MAX4.4) RX100 (100A) H65
18.5 SJ700B-185LFF/LFUF 30 22 22 M6 38-6 4.5(MAX4.9) RX100 (100A) H80
22 SJ700B-220LFF/LFUF 38 30 22 M6 38-6 4.5(MAX4.9) RX225B (150A) H100
30 SJ700B-300LFF/LFUF 60 (22×2) 30 30 M8 R60-8 8.1(MAX8.8) RX225B (200A) H125
37 SJ700B-370LFF/LFUF 100 (38×2) 38 ― M8 100-8 8.1(MAX8.8) RX225B (225A) H150
45 SJ700B-450LFF/LFUF 100 (38×2) 38 ― M8 100-8 8.1(MAX20) RX225B (225A) H200
55 SJ700B-550LFF/LFUF 150 (60×2) 60 ― M8 150-8 8.1(MAX20) RX400B (350A) H250
200 V class
75 SJ700B-750LFF/LFUF 150 (60×2) 80 ― M10 R150-10 19.5(MAX22) RX400B (350A) H300
5.5 SJ700B-055HF 3.5 3.5 3.5 M4 3.5-4 1.2(MAX1.8) EX50C(30A) HK20
7.5 SJ700B-07FHFF/HFUF 3.5 3.5 3.5 M5 3.5-5 2.4(MAX4.0) EX50C(30A) HK25
11 SJ700B-110HFF/HFUF 5.5 5.5 5.5 M5 R5.5-5 2.4(MAX4.0) EX50C (30A) HK35
15 SJ700B-150HFF/HFUF 8 8 5.5 M6 R8-6 4.0(MAX4.4) EX60B (60A) HK35
18.5 SJ700B-185HFF/HFUF 14 14 8 M6 R14-6 4.5(MAX4.9) EX60B (60A) HK50
22 SJ700B-220HFF/HFUF 14 14 8 M6 R14-6 4.5(MAX4.9) RX100 (75A) HK50
30 SJ700B-300HFF/HFUF 22 22 14 M6 R22-6 4.5(MAX4.9) RX100 (100A) H65
37 SJ700B-370HFF/HFUF 38 22 ― M6 38-6 4.5(MAX4.9) RX100 (100A) H80
45 SJ700B-450HFF/HFUF 38 22 ― M8 R38-8 8.1(MAX20) RX225B (150A) H100
55 SJ700B-550HFF/HFUF 60 30 ― M8 R60-8 8.1(MAX20) RX255B (175A) H125
75 SJ700B-750HFF/HFUF 100(38X2) 38 ― M8 100-8 8.1(MAX20) RX225B(225A) H150
90 SJ700B-900 HFF/HFUF 100(38X2) 38 ― M10 R100-10 20.0(MAX22) RX225B(225A) H200
110 SJ700B-1100HFF/HFUF 150(60X2) 60 ― M10 R150-10 20.0(MAX35) RX400B(350A) H250
132 SJ700B-1320HFF/HFUF 80X2 80 ― M10 80-10 20.0(MAX35) RX400B(350A) H300
400 V class
160 SJ700B-1600HFF/HFUF 100X2 80 ― M10 R100-10 20.0(MAX35) RX400B(350A) H400
Note: Cable gauges indicate those of HIV cables (maximum heat resistance: 75°C).
*1）Please use the round type crimp terminals ( for the UL standard) suitable for the use electric wire when you connect
the electric wire with the main circuit terminal stand. Please put on pressure to the crimp terminals l with a crimp
tool that the terminal stand maker recommends.
(5) Connecting the control circuit to a power supply separately from the main circuit
If the protective circuit of the inverter operates to open the magnetic contactor in the input power supply
circuit, the inverter control circuit power is lost, and the alarm signal cannot be retained.
To retain the alarm signal, connect control circuit terminals R0 and T0 to a power supply.
In details, connect the control circuit power supply terminals R0 and T0 to the primary side of the
magnetic contactor as shown below.
(Connection method)
Power-receiving specifications
200 V class model:
200 to 240 V (+10%, -15%)
(50/60 Hz ±5%),(282 to 339 VDC)
400 V class model:
380 to 480 V (+10%, -15%)
(50/60 Hz ±5%),(537 to 678 VDC)
Note the following when connecting separate power supplies to control circuit power supply terminals (R0 and T0)
and main circuit power supply terminals (R, S, and T):
- Use a cable thicker than 1.25 mm
2
to connect the terminals R0 and T0 (terminal screw size: M4).
- Connect a 3 A fuse in the control circuit power supply line.( Tightening torque:1.2Nm,max torque:1.4Nm)
- If the control circuit power supply (connected to R0 and T0) is turned on earlier than the main circuit power
supply (connected to R, S, and T), ground fault is not checked at power-on.
- When supplying DC power to the control circuit power supply terminals (R0 and T0), specify "00" as the "a/b
(NO/NC)" selection (function code C031 to C036) for intelligent output terminals ([11] to [15]) and intelligent
relay terminals (AL0, AL1, and AL2). If "01" is specified as the "a/b (NO/NC)" selection, output signals may
chatter when the DC power supply is shut off.
② Remove the J51 connector.
① Remove the connected cables.
③ Connect the control circuit power
supply cables to the control
circuit power supply terminal
block.
J51
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