Hitachi SJ700-2 200 to 240 V +10%, -15%, 50/60 Hz ±5% 282 to 339 VDC, 380 to 480 V +10%, -15%

Chapter 2 Installation and Wiring

(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.

200 V class

400 V class

		Gauge of power		External braking				Applicable device
Motor		line cable (mm2)			Size of		Tightening
			Grounding
output	Applicable inverter	(Terminals: R, S,		resistor across	terminal	Crimp	torque
									Magnetic
	model		cable (mm2)	terminals P and		terminal		Earth-leakage
(kW)		T, U, V, W, P, PD,		RB (mm2)	screw		(N-m)	breaker (ELB)	contactor
		and N)							(MC)
5.5	SJ700-055LFF2	5.5	5.5	5.5	M5	R5.5-5	2.4	EX50B (50A)	HK25
7.5	SJ700-075LFF2	8	8	8	M5	R8-5	2.4	EX60 (60A)	HK35
11	SJ700-110LFF2	14	14	14	M6	R14-6	4.5	RX100 (75A)	HK50
15	SJ700-150LFF2	22	22	22	M6	22-6	4.5	RX100 (100A)	H65
18.5	SJ700-185LFF2	30	22	30	M6	30-S6	4.5	RX100 (100A)	H80
						38-8
22	SJ700-220LFF2	38	30	38	M8	38-S8	8.1	RX225B (150A)	H100
						38-10
						60-S8
30	SJ700-300LFF2	60 (22×2)	30	―	M8	60-10	8.1	RX225B (200A)	H125
						CB60-8
						CB60-S8
37	SJ700-370LFF2	100 (38×2)	38	―	M8	100-8	8.1	RX225B (225A)	H150
45	SJ300-450LFF2	100 (38×2)	38	―	M8	100-8	8.1	RX225B (225A)	H200
55	SJ300-550LFF2	150 (60×2)	60	―	M10	150-10	8.1	RX400B (350A)	H250
5.5	SJ700-055HFF2	2	2	2	M5	R2-5	2.4	EX50C (30A)	HK20
7.5	SJ700-075HFF2	3.5	3.5	3.5	M5	3.5-5	2.4	EX50C (30A)	HK25
11	SJ700-110HFF2	5.5	5.5	5.5	M6	R5.5-6	4.5	EX50C (30A)	HK35
15	SJ700-150HFF2	8	8	8	M6	8-6	4.5	EX60B (60A)	HK35
18.5	SJ700-185HFF2	14	14	14	M6	14-6	4.5	EX60B (60A)	HK50
22	SJ700-220HFF2	14	14	14	M6	14-6	4.5	RX100 (75A)	HK50
30	SJ700-300HFF2	22	22	―	M6	22-6	4.5	RX100 (100A)	H65
37	SJ700-370HFF2	38	22	―	M8	38-8	8.1	RX100 (100A)	H80
45	SJ700-450HFF2	38	22	―	M8	38-8	8.1	RX225B (150A)	H100
55	SJ700-550HFF2	60	30	―	M8	R60-8	8.1	RX255B (175A)	H125

Note: Cable gauges indicate those of HIV cables (maximum heat resistance: 75°C).

(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:		① Remove the connected cables.
200 to 240 V (+10%, -15%)		② Remove the J51 connector.
(50/60 Hz ±5%)
(282 to 339 VDC)		③ Connect the control circuit power
400 V class model:		supply cables to the control
380 to 480 V (+10%, -15%)		circuit power supply terminal
(50/60 Hz ±5%)	J51	block.
(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 mm2 to connect the terminals R0 and T0 (terminal screw size: M4).

-Connect a 3 A fuse in the control circuit power supply line.

-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.

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