Mitsubishi FR-D740, FR-D720S, FR-D720, FR-D710W User Manual

INVERTER

FR-D700

INSTRUCTION MANUAL (BASIC)

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FR-D720-0.1K to 15K

FR-D740-0.4K to 15K

FR-D720S-0.1K to 2.2K

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FR-D710W-0.1K to 0.75K

Thank you for choosing this Mitsubishi Inverter.

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This Instruction Manual (Basic) provides handling information and precautions for use of the equipment.

Please forward this Instruction Manual (Basic) to the end user.

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CONTENTS
OUTLINE ...................................................................................	1
INSTALLATION AND WIRING ...................................................	5
PRECAUTIONS FOR USE OF THE INVERTER.........................	18
FAILSAFE OF THE SYSTEM WHICH USES THE INVERTER ...	20
DRIVE THE MOTOR.................................................................	21
ENERGY SAVING OPERATION FOR FANS AND PUMPS ........	29
PARAMETERS .........................................................................	30
TROUBLESHOOTING ..............................................................	34
PRECAUTIONS FOR MAINTENANCE AND INSPECTION ........	38
SPECIFICATIONS....................................................................	40
To obtain the Instruction Manual (Applied) and the
manual
Safety stop function instruction700

Contact where you purchased the inverter, your Mitsubishi sales representative, or the nearest Mitsubishi FA Center for the following manuals:

yInstruction Manual (Applied) [IB(NA)-0600366ENG]

ySafety stop function instruction manual [BCN-A211508-000]

These manuals are required if you are going to utilize functions and performance.

The PDF version of this manual is also available for download at "MELFANS Web," the Mitsubishi Electric FA network service on the world wide web (URL: http://www.MitsubishiElectric.co.jp/melfansweb)

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This Instruction Manual (Basic) provides handling information and precautions for use of the equipment. Please forward this Instruction Manual (Basic) to the end user.

This section is specifically about safety matters

Do not attempt to install, operate, maintain or inspect the inverter until you have read through the Instruction Manual (Basic) and appended documents carefully and can use the equipment correctly. Do not use this product until you have a full knowledge of the equipment, safety information and instructions.

In this Instruction Manual (Basic), the safety instruction levels are classified into "WARNING" and "CAUTION".

WARNING		Incorrect	handling	may	cause
		hazardous	conditions,	resulting		in
		death or severe injury.
CAUTION		Incorrect	handling	may	cause
		hazardous	conditions,	resulting		in
		medium or slight injury, or may cause
		only material damage.
The	CAUTION	level may	even lead	to a	serious

consequence according to conditions. Both instruction levels must be followed because these are important to personal safety.

1. Electric Shock Prevention

WARNING

zWhile power is ON or when the inverter is running, do not open the front cover. Otherwise you may get an electric shock.

zDo not run the inverter with the front cover or wiring cover removed. Otherwise you may access the exposed highvoltage terminals or the charging part of the circuitry and get an electric shock.

zEven if power is OFF, do not remove the front cover except for wiring or periodic inspection. You may accidentally touch the charged inverter circuits and get an electric shock.

zBefore wiring or inspection, power must be switched OFF. To confirm that, LED indication of the operation panel must be checked. (It must be OFF.) Any person who is involved in wiring or inspection shall wait for at least 10 minutes after the power supply has been switched OFF and check that there are no residual voltage using a tester or the like. The capacitor is charged with high voltage for some time after power OFF, and it is dangerous.

zThis inverter must be earthed (grounded). Earthing (grounding) must conform to the requirements of national and local safety regulations and electrical code (NEC section 250, IEC 536 class 1 and other applicable standards).

A neutral-point earthed (grounded) power supply for 400V class inverter in compliance with EN standard must be used.

zAny person who is involved in wiring or inspection of this equipment shall be fully competent to do the work.

zThe inverter must be installed before wiring. Otherwise you may get an electric shock or be injured.

zSetting dial and key operations must be performed with dry hands to prevent an electric shock. Otherwise you may get an electric shock.

zDo not subject the cables to scratches, excessive stress, heavy loads or pinching. Otherwise you may get an electric shock.

zDo not change the cooling fan while power is ON. It is dangerous to change the cooling fan while power is ON.

zDo not touch the printed circuit board or handle the cables with wet hands. Otherwise you may get an electric shock.

zWhen measuring the main circuit capacitor capacity, the DC voltage is applied to the motor for 1s at powering OFF. Never touch the motor terminal, etc. right after powering OFF to prevent an electric shock.

2. Fire Prevention

CAUTION

zInverter must be installed on a nonflammable wall without holes (so that nobody touches the inverter heatsink on the rear side, etc.). Mounting it to or near flammable material can cause a fire.

zIf the inverter has become faulty, the inverter power must be switched OFF. A continuous flow of large current could cause a fire.

zWhen using a brake resistor, a sequence that will turn OFF power when a fault signal is output must be configured. Otherwise the brake resistor may overheat due to damage of the brake transistor and possibly cause a fire.

zDo not connect a resistor directly to the DC terminals P/+ and N/-. Doing so could cause a fire.

3.Injury Prevention

CAUTION

zThe voltage applied to each terminal must be the ones specified in the Instruction Manual. Otherwise burst, damage, etc. may occur.

zThe cables must be connected to the correct terminals. Otherwise burst, damage, etc. may occur.

zPolarity must be correct. Otherwise burst, damage, etc. may occur.

zWhile power is ON or for some time after power-OFF, do not touch the inverter since the inverter will be extremely hot. Doing so can cause burns.

4.Additional Instructions

Also the following points must be noted to prevent an accidental failure, injury, electric shock, etc.

(1) Transportation and Mounting

CAUTION

zThe product must be transported in correct method that corresponds to the weight. Failure to do so may lead to injuries.

zDo not stack the boxes containing inverters higher than the number recommended.

zThe product must be installed to the position where withstands the weight of the product according to the information in the Instruction Manual.

zDo not install or operate the inverter if it is damaged or has parts missing.

zWhen carrying the inverter, do not hold it by the front cover or setting dial; it may fall off or fail.

zDo not stand or rest heavy objects on the product.

zThe inverter mounting orientation must be correct.

zForeign conductive objects must be prevented from entering the inverter. That includes screws and metal fragments or other flammable substance such as oil.

zAs the inverter is a precision instrument, do not drop or subject it to impact.

zThe inverter must be used under the following environment: Otherwise the inverter may be damaged.

		Surrounding	-10°C to +50°C (non-freezing)
		air
		temperature
	Environment	Ambient	90%RH or less (non-condensing)
		humidity
		Storage	-20°C to +65°C *1
		temperature
		Atmosphere	Indoors (free from corrosive gas, flammable gas,
			oil mist, dust and dirt)
		Altitude/	Maximum 1,000m above sea level.
			5.9m/s2 or less at 10 to 55Hz (directions of X, Y, Z
		vibration	axes)

1 Temperature applicable for a short time, e.g. in transit.

A-1

(2) Wiring

CAUTION

zDo not install a power factor correction capacitor or surge suppressor/capacitor type filter on the inverter output side. These devices on the inverter output side may be overheated or burn out.

zThe connection orientation of the output cables U, V, W to the motor affects the rotation direction of the motor.

(3) Trial run

CAUTION

zBefore starting operation, each parameter must be confirmed and adjusted. A failure to do so may cause some machines to make unexpected motions.

(4) Usage

WARNING

zAny person must stay away from the equipment when the retry function is set as it will restart suddenly after trip.

zSince pressing key may not stop output depending on the function setting status, separate circuit and switch that make an emergency stop (power OFF, mechanical brake operation for emergency stop, etc.) must be provided.

zOFF status of the start signal must be confirmed before resetting the inverter fault. Resetting inverter alarm with the start signal ON restarts the motor suddenly.

zThe inverter must be used for three-phase induction motors.

Connection of any other electrical equipment to the inverter output may damage the equipment.

zDo not modify the equipment.

zDo not perform parts removal which is not instructed in this manual. Doing so may lead to fault or damage of the product.

CAUTION

zThe electronic thermal relay function does not guarantee protection of the motor from overheating. It is recommended to install both an external thermal and PTC thermistor for overheat protection.

zDo not use a magnetic contactor on the inverter input for frequent starting/stopping of the inverter. Otherwise, the life of the inverter decreases.

zThe effect of electromagnetic interference must be reduced by using an EMC filter or by other means. Otherwise nearby electronic equipment may be affected.

zAppropriate measures must be taken to suppress harmonics. Otherwise power supply harmonics from the inverter may heat/damage the power factor correction capacitor and generator.

zWhen driving a 400V class motor by the inverter, the motor must be an insulation-enhanced motor or measures must be taken to suppress surge voltage. Surge voltage attributable to the wiring constants may occur at the motor terminals, deteriorating the insulation of the motor.

zWhen parameter clear or all parameter clear is performed, the required parameters must be set again before starting operations because all parameters return to the initial value.

zThe inverter can be easily set for high-speed operation. Before changing its setting, the performances of the motor and machine must be fully examined.

zStop status cannot be hold by the inverter's brake function. In addition to the inverter's brake function, a holding device must be installed to ensure safety.

zBefore running an inverter which had been stored for a long period, inspection and test operation must be performed.

zStatic electricity in your body must be discharged before you touch the product. Otherwise the product may be damaged.

zIf you are installing the inverter to drive a three-phase device while you are contracted for lighting and power service, consult your electric power supplier.

(5) Emergency stop

CAUTION

zA safety backup such as an emergency brake must be provided to prevent hazardous condition to the machine and equipment in case of inverter failure.

zWhen the breaker on the inverter input side trips, the wiring must be checked for fault (short circuit), and internal parts of the inverter for a damage, etc. The cause of the trip must be identified and removed before turning ON the power of the breaker.

zWhen any protective function is activated, appropriate corrective action must be taken, and the inverter must be reset before resuming operation.

(6) Maintenance, inspection and parts replacement

CAUTION

zDo not carry out a megger (insulation resistance) test on the control circuit of the inverter. It will cause a failure.

(7) Disposal

CAUTION

z The inverter must be treated as industrial waste.

General instruction

Many of the diagrams and drawings in this Instruction Manual (Basic) show the inverter without a cover or partially open for explanation. Never operate the inverter in this manner. The cover must be always reinstalled and the instruction in this Instruction Manual (Basic) must be followed when operating the inverter.

<Abbreviation>

yPU: Operation panel and parameter unit (FR-PU04/FR- PU07)

yInverter: Mitsubishi inverter FR-D700 series

yFR-D700: Mitsubishi inverter FR-D700 series

yPr.: Parameter number (Number assigned to function)

yPU operation: Operation using the PU (operation panel/FR- PU04/FR-PU07)

yExternal operation: Operation using the control circuit signals

yCombined operation: Operation using both the PU (operation panel/FR-PU04/FR-PU07) and External operation

yStandard motor : SF-JR

yConstant torque motor: SF-HRCA

<Trademark>

yCompany and product names herein are the trademarks and registered trademarks of their respective owners.

<Mark>

REMARKS:Additional helpful contents and relations with other functions are stated.

Note: Contents requiring caution or cases when set functions are not activated are stated.

POINT: Useful contents and points are stated.

<Related document>

Refer to the Instruction Manual (Applied) for further information on the following points.

yRemoval and reinstallation of the cover

yConnection of stand-alone option unit

yEMC and leakage currents

yDetailed explanation on parameters

yTroubleshooting

yCheck first when you have a trouble

yInspection items (life diagnosis, cooling fan replacement)

yMeasurement of main circuit voltages, currents and powers

yFor customers who are replacing the conventional model with this inverter

A-2

1 OUTLINE

1.1Product checking and parts identification

Unpack the inverter and check the capacity plate on the front cover and the rating plate on the inverter side face to ensure that the product agrees with your order and the inverter is intact.

zInverter model

	FR -	D740		-		1.5		K
Symbol	Voltage class					Represents the
D720	Three-phase 200V class
						inverter capacity [kW]
D740	Three-phase 400V class
D720S	Single-phase 200V class
D710W	Single-phase 100V class

Cooling fan

The cooling fan is removable.

Operation panel

(Refer to page 2)

Voltage/current input switch

(Refer to page 8)

PU connector

(Refer to page 8)

Front cover

Refer to the Instruction Manual (Applied) for installation/removal.

Control logic switchover jumper connector

The jumper connector is in the sink logic (SINK) when shipped from the factory. Move the jumper connector to change to the source logic (SOURCE). Always fit the jumper connector to the either position.

( Refer to the Instruction Manual (Applied))

Control circuit terminal block

(Refer to page 9)

Main circuit terminal block

(Refer to page 9)

Combed shaped wiring cover

Refer to the Instruction Manual (Applied) for installation/removal.

	Capacity plate		Rating plate	Production year and month
	1.5K
			Inverter model	FR-D740-1.5K
	Inverter model	Serial number	Input rating
			Output rating
•	Accessory
	· Fan cover fixing screws (M3 × 35mm)		Serial number
	These screws are necessary for compliance with the
	EU Directive. (Refer to page 43)
	Capacity		Quantity
	1.5K to 3.7K		1
	5.5K to 15K		2

REMARKS

· For how to find the SERIAL number, refer to page 46.

Harmonic suppression guideline (when inverters are used in Japan)

All models of general-purpose inverters used by specific consumers are covered by "Harmonic Suppression Guidelines for Consumers Who Receive High Voltage or Special High Voltage". (For further details, refer to Chapter 3 of the Instruction Manual (Applied).)

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Operation panel

1.2Operation panel

1.2.1Names and functions of the operation panel

The operation panel cannot be removed from the inverter.

Operation mode indicator

PU: Lit to indicate PU operation mode. EXT: Lit to indicate External operation mode. (Lit at power-ON at initial setting.)

NET: Lit to indicate Network operation mode. PU, EXT: Lit to indicate External/PU

combined operation mode 1, 2. These turn OFF when command source is not on operation panel.

Unit indicator

Hz: Lit to indicate frequency. (Flickers when the set frequency monitor is displayed.)

A: Lit to indicate current.

(Both "Hz" and "A" turn OFF when other than the above is displayed.)

Monitor (4-digit LED)

Shows the frequency, parameter number, etc.

Setting dial

(Setting dial: Mitsubishi inverter dial) The setting dial is used to change the frequency and parameter settings.

Press the setting dial to perform the following operations:

yTo display a set frequency in the monitor mode

yTo display the present setting during calibration

yTo display a fault history number in the faults history mode

Mode switchover

Used to switch among different setting modes.

Pressing simultaneously changes

the operation mode.

Pressing for a while (2s) can lock operation. ( Refer to the Instruction Manual (Applied))

Determination of each setting

If pressed during operation, monitor changes as below:

Running frequency

Operating status indicator
Lit or flicker during inverter operation.
* Lit: When the forward rotation operation
is being performed.			1
Slow flickering (1.4s cycle):
When the reverse rotation operation
is being performed.
Fast flickering (0.2s cycle):
yWhen	was pressed or the start
command was given, but the
operation cannot be made.
yWhen the frequency command is less
than the starting frequency.
yWhen the MRS signal is input.

Parameter setting mode indicator

Lit to indicate parameter setting mode.

Monitor indicator

Lit to indicate monitoring mode.

STOP operation

Used to stop operation commands. Used to reset a fault when the protective function (fault) is activated.

Operation mode switchover

Used to switch between the PU and External operation modes.

To use the External operation mode (operation using a separately connected frequency setting potentiometer and start signal), press this key to light up the EXT indicator.

(Press simultaneously (0.5s), or

change Pr. 79 setting to change to combined mode .) ( Refer to the Instruction Manual (Applied))

PU: PU operation mode

EXT: External operation mode Cancels PU stop also.

Start command

The rotation direction can be selected by setting Pr. 40.

Output current

Output voltage

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Operation panel

1.2.2Basic operation (factory setting)

Monitor/frequency setting

Operation mode switchover

At power-ON (External operation mode)

		PU Jog operation mode
			(Example)
	PU operation mode	Value change	and frequency flicker alternately.
	(output frequency monitor)
			Frequency setting has been
			written and completed!!
		Output current monitor STOP	Output voltage monitor

Parameter setting

Faults history

		Display the
Parameter setting mode		present setting
		(Example)
Value change		Parameter and a setting value
		flicker alternately.
		Parameter write is completed!!
Parameter clear	All parameter	Faults history clear
	clear

Initial value change list

[Operation for displaying faults history] (Refer to page 35)

The past eight faults can be displayed using the setting dial. (The latest fault is ended by ".".)

When no fault history exists,	is displayed.
While a fault is displayed:
The display shifts as follows by pressing		: Output frequency at the fault
Output current Output voltage	Energization time.

(After Energization time, it goes back to a fault display.)

Pressing the setting dial shows the fault history number.

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Operation panel

1.2.3Changing the parameter setting value

Operation example Change the Pr. 1 Maximum frequency setting.

Operation

1. Screen at power-ON

The monitor display appears.

2. Operation mode change

Press to choose the PU operation mode. PU indicator is lit.

3.	Parameter setting mode
	Press	to choose the parameter setting mode.
4.	Selecting the parameter number
	Turn	until	(Pr. 1) appears.
	Reading the setting value
5.	Press	to read the present set value.
	"	"(120.0Hz (initial value)) appears.
6.	Changing the setting value			" (60.00Hz).
	Turn	to change the set value to "

Setting the parameter

7.Press to set.

The parameter number and the setting value flicker alternately.

REMARKS
to	is displayed...Why?
appears .....	Write disable error
appears .....	Write error during operation
appears .....	Calibration error	1
appears .....	Mode designation error

(For details, refer to the Instruction Manual (Applied).)

yThe number of digits displayed on the operation panel is four. Only the upper four digits of values can be displayed and set. If the values to be displayed have five digits or more including decimal places, the fifth or later numerals cannot be displayed nor set.

(Example) For Pr. 1

When 60Hz is set, 60.00 is displayed.

When 120Hz is set, 120.0 is displayed and second decimal place is not displayed nor set.

1.2.4Parameter clear/all parameter clear

POINT

y Set "1" in Pr.CL Parameter clear or ALLC all parameter clear to initialize parameters. (Parameters are not cleared when "1" is set in Pr. 77 Parameter write selection.)

yRefer to the extended parameter list of the Instruction Manual (Applied) for parameters cleared with this operation.

			Operation
	1.	Screen at power-ON
		The monitor display appears.
	2.	Operation mode change
		Press	to choose the PU operation mode. PU indicator is lit.
	3.	Parameter setting mode
		Press	to choose the parameter setting mode.
	4.	Selecting Parameter Clear (All Parameter Clear)				REMARKS
		Turn	until	(	) appears.
		Selecting the setting value				and	are displayed alternately ...
						Why?
		Press	to read the present set value.
	5.					The inverter is not in the PU operation mode.
		" "(initial value) appears.
						(Refer to the step 2.)
		Turn	to change it to the set value " ".			PU connector is used (when a parameter unit
		Executing Parameter Clear				(FR-PU04/FR-PU07) is used).
						y Stop the inverter. Parameter clear is unavailable
	6.	Press	to set.
						when the inverter is running, and will cause the write
		" " and Pr. CL (ALLC) indications flicker alternately.				disable error.
		Setting				Description

0Clear is not executed.

Sets parameters back to the initial values. (Parameter clear sets back all parameters except calibration parameters,

1terminal function selection parameters to the initial values.) Refer to the parameter list of the Instruction Manual (Applied) for availability of parameter clear and all parameter clear.

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2	INSTALLATION AND WIRING
	AC power supply
	Use within the permissible power supply
	specifications of the inverter. To ensure
	safety, use a moulded case circuit breaker,						RS-232C - RS-485 converter is
	earth leakage circuit breaker or magnetic			Enclosure surface operation
							required when connecting to PC
	contactor to switch power ON/OFF.			panel (FR-PA07)
							with RS-232C interface.
		(Refer to page 40)		By connecting the connection cable
							(	Refer to the
	Moulded case circuit breaker			(FR-CB2) to the PU connector,
			Parameter unit operation can be performed from				Instruction Manual (Applied))
	(MCCB) or earth leakage circuit
	breaker (ELB), fuse		(FR-PU07)	FR-PU07, FR-PA07.
	The breaker must be selected carefully
	since an in-rush current flows in the
	inverter at power on.
		(Refer to page 6)		RS-485 RS-232C
	Magnetic contactor (MC)				Converter
	Install the magnetic contactor to ensure
	safety. Do not use this magnetic contactor
	to start and stop the inverter. Doing so will
	cause the inverter life to be shortened.					S1		Approved safety
	(Refer to page 6)					S2		relay module
	Reactor (FR-HAL, FR-HEL option)					SC		Required for
								compliance with
	Reactors (option) must be used when
								safety standard.
	power harmonics measures are taken,
	the power factor is to be improved or the
	inverter is installed near a large power
	supply system (500kVA or more). The
	inverter may be damaged if you do not
	use reactors. Select the reactor according
	to the model. Remove the jumpers across						Brake resistor (FR-ABR,
	terminals P/+ and P1 to connect the DC reactor.
	AC reactor (FR-HAL)	DC reactor (FR-HEL) *					MRS type, MYS type)
							Braking capability can be
							improved. (0.4K or higher)
							Always install a thermal relay
							when using a brake resistor
							whose capacity is 11K or higher.
							(Refer to page 17)
						P/+
		Noise filter (ferrite core) *	Inverter (FR-D700)			PR
			P/+P1
		(FR-BSF01, FR-BLF)					Noise filter (ferrite core)
				R/L1 S/L2 T/L3
		Install a noise filter (ferrite core)					(FR-BSF01, FR-BLF)
		to reduce the electromagnetic	Noise filter		Earth (Ground)		Install a noise filter (ferrite core)
		noise generated from the					to reduce the electromagnetic
			(capacitor) *		P/+ N/-	U V W
		inverter. Effective in the range
							noise generated from the inverter.
			(FR-BIF)
		from about 1MHz to 10MHz.
							Effective in the range from about
		When more wires are passed	Reduces the
							1MHz to 10MHz. A wire should be
		through, a more effective result	radio noise.
							wound four turns at a maximum.
		can be obtained. A wire should
		be wound four turns or more.
* Filterpack (FR-BFP2), which contains DC reactor and noise filter in one package, is also available.
			Brake unit
			(FR-BU2)

		P/+ PR
		P/+
		PR
High power factor	Power regeneration	Resistor unit (FR-BR)
converter (FR-HC)	common converter	Discharging resistor (GZG, GRZG)
	(FR-CV)
Power supply harmonics	Great braking capability	The regenerative braking capability
can be greatly suppressed.	is obtained.	of the inverter can be exhibited fully.
Install this as required.	Install this as required.	Install this as required.

Earth (Ground)

Devices connected to the output

Do not install a power factor correction capacitor,

surge suppressor or noise filter (capacitor) on the output side of the inverter. When installing a moulded case circuit breaker on the output side of the inverter, contact each manufacturer for selection of the

moulded case circuit breaker.

Earth (Ground)

To prevent an electric shock, always earth (ground) the motor and inverter. For reduction of induction noise from the power line of the inverter, it is recommended to wire the earth (ground) cable by returning it to the earth (ground) terminal of the inverter.

NOTE

yThe life of the inverter is influenced by surrounding air temperature. The surrounding air temperature should be as low as possible within the permissible range. This must be noted especially when the inverter is installed in an enclosure. (Refer to page 7)

yWrong wiring might lead to damage of the inverter. The control signal lines must be kept fully away from the main circuit to protect them from noise. (Refer to page 8)

yDo not install a power factor correction capacitor, surge suppressor or noise filter (capacitor) on the inverter output side. This will cause the inverter to trip or the capacitor and surge suppressor to be damaged. If any of the above devices are connected, immediately remove them.

yElectromagnetic wave interference

The input/output (main circuit) of the inverter includes high frequency components, which may interfere with the communication devices (such as AM radios) used near the inverter. In this case, install the FR-BIF optional noise filter (capacitor) (for use in the input side only) or FR-BSF01 or FR-BLF noise filter (ferrite core) to minimize interference.

( Refer to Chapter 3 of the Instruction Manual (Applied)).

yRefer to the Instruction Manual of each option and peripheral devices for details of peripheral devices.

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Peripheral devices

2.1Peripheral devices

Check the inverter model of the inverter you purchased. Appropriate peripheral devices must be selected according to the capacity. Refer to the following list and prepare appropriate peripheral devices.

Single-Phase 100V Single-Phase 200V Three-Phase 400V Three-Phase 200V

		Moulded Case Circuit Breaker
	Motor	(MCCB) 1			Magnetic Contactor (MC)
		or Earth Leakage Circuit Breaker					Reactor
					3
Inverter Model	Output	(ELB) 2
	(kW)	(NF or NV type)
		Reactor connection			Reactor connection		FR-HAL	FR-HEL
		without		with	without	with
FR-D720-0.1K	0.1	5A		5A	S-N10	S-N10	0.4K 5	0.4K 5
FR-D720-0.2K	0.2	5A		5A	S-N10	S-N10	0.4K 5	0.4K 5
FR-D720-0.4K	0.4	5A		5A	S-N10	S-N10	0.4K	0.4K
FR-D720-0.75K	0.75	10A		5A	S-N10	S-N10	0.75K	0.75K
FR-D720-1.5K	1.5	15A		10A	S-N10	S-N10	1.5K	1.5K		2
FR-D720-2.2K	2.2	20A		15A	S-N10	S-N10	2.2K	2.2K
FR-D720-3.7K	3.7	30A		30A	S-N20, S-N21	S-N10	3.7K	3.7K
FR-D720-5.5K	5.5	50A		40A	S-N20, S-N21	S-N20, S-N21	5.5K	5.5K
FR-D720-7.5K	7.5	60A		50A	S-N25	S-N20, S-N21	7.5K	7.5K
FR-D720-11K	11	75A		75A	S-N35	S-N35	11K	11K
FR-D720-15K	15	125A		100A	S-N50	S-N50	15K	15K
FR-D740-0.4K	0.4	5A		5A	S-N10	S-N10	H0.4K	H0.4K
FR-D740-0.75K	0.75	5A		5A	S-N10	S-N10	H0.75K	H0.75K
FR-D740-1.5K	1.5	10A		10A	S-N10	S-N10	H1.5K	H1.5K
FR-D740-2.2K	2.2	15A		10A	S-N10	S-N10	H2.2K	H2.2K
FR-D740-3.7K	3.7	20A		15A	S-N10	S-N10	H3.7K	H3.7K
FR-D740-5.5K	5.5	30A		20A	S-N20, S-N21	S-N11, S-N12	H5.5K	H5.5K
FR-D740-7.5K	7.5	30A		30A	S-N20, S-N21	S-N20, S-N21	H7.5K	H7.5K
FR-D740-11K	11	50A		40A	S-N20, S-N21	S-N20, S-N21	H11K	H11K
FR-D740-15K	15	60A		50A	S-N25	S-N20, S-N21	H15K	H15K
FR-D720S-0.1K	0.1	5A		5A	S-N10	S-N10	0.4K 5	0.4K 5
FR-D720S-0.2K	0.2	5A		5A	S-N10	S-N10	0.4K 5	0.4K 5
FR-D720S-0.4K	0.4	10A		10A	S-N10	S-N10	0.75K 5	0.75K 5
FR-D720S-0.75K	0.75	15A		10A	S-N10	S-N10	1.5K 5	1.5K 5
FR-D720S-1.5K	1.5	20A		20A	S-N10	S-N10	2.2K 5	2.2K 5
FR-D720S-2.2K	2.2	40A		30A	S-N20, S-N21	S-N10	3.7K 5	3.7K 5
FR-D710W-0.1K	0.1	10A		5A	S-N10	S-N10	0.75K 4, 5	— 6
FR-D710W-0.2K	0.2	10A		10A	S-N10	S-N10	1.5K 4, 5	— 6
FR-D710W-0.4K	0.4	15A		15A	S-N10	S-N10	2.2K 4, 5	— 6
FR-D710W-0.75K	0.75	30A		20A	S-N10	S-N10	3.7K 4, 5	— 6

1 ySelect a MCCB according to the power supply capacity.
yInstall one MCCB per inverter.			MCCB		INV	IM
			MCCB		INV	IM

2 For the use in the United States or Canada, select an UL and cUL certified fuse with Class T fuse equivalent cut-off

speed or faster with the appropriate rating for branch circuit protection. Alternatively, select a UL489 molded case circuit breaker (MCCB). (Refer to page 46) 3 Magnetic contactor is selected based on the AC-1 class. The electrical durability of magnetic contactor is 500,000 times. When the magnetic contactor is

used for emergency stop during motor driving, the electrical durability is 25 times.

If using an MC for emergency stop during motor driving, select an MC regarding the inverter input side current as JEM1038-AC-3 class rated current. When using an MC on the inverter output side for commercial-power supply operation switching using a general purpose motor, select an MC regarding the motor rated current as JEM1038-AC-3 class rated current.

4 When connecting a single-phase 100V power input model to a power transformer (50kVA or more), install an AC reactor (FR-HAL) so that the performance is more reliable. ( Refer to Chapter 3 of the Instruction Manual (Applied))

5 The power factor may be slightly lower.

6 Single-phase 100V power input model is not compatible with DC reactor.

NOTE

yWhen the inverter capacity is larger than the motor capacity, select an MCCB and a magnetic contactor according to the inverter model, and cable and reactor according to the motor output.

yWhen the breaker on the inverter input side trips, check for the wiring fault (short circuit), damage to internal parts of the inverter, etc. Identify the cause of the trip, then remove the cause and power ON the breaker.

6

Installation of the inverters and precautions

2.2Installation of the inverters and precautions

(1)Installation of the inverter

Enclosure surface mounting

Remove the front cover and wiring cover to mount the inverter to the surface. (Remove the covers in the directions of the arrows.)

FR-D720-0.1K to 0.75K	FR-D720-1.5K to 3.7K	FR-D720-5.5K to 15K
FR-D720S-0.1K to 0.75K	FR-D740-0.4K to 3.7K	FR-D740-5.5K to 15K
FR-D710W-0.1K to 0.4K	FR-D720S-1.5K, 2.2K
	FR-D710W-0.75K

Front cover

Front cover

Front cover

Wiring cover

Wiring cover

NOTE

yWhen encasing multiple inverters, install them in parallel as a cooling measure.

yInstall the inverter vertically.

yFor heat dissipation and maintenance, allow minimum clearance shown in the figures below from the inverter to the other devices and to the inner surface of the enclosure.

		Measurement		10cm or more
		position
	5cm	5cm
			1cm or	1cm or	1cm or
		5cm	more 1, 2	more 1, 2
	Measurement				more 1

position	10cm or more

Refer to the clearances below.

-10 C to 50 C (non-freezing)

1 Allow 5cm or more clearance for 5.5K or higher.

2 When using the inverters at the surrounding air temperature of 40°C or less, the inverters can be installed without any clearance between them (0cm clearance).

(2)Environment

Before installation, check that the environment meets the specifications on page 41.

Note

yInstall the inverter on a strong surface securely and vertically with bolts.

yLeave enough clearances and take cooling measures.

yAvoid places where the inverter is subjected to direct sunlight, high temperature and high humidity.

yInstall the inverter on a nonflammable wall surface.

7

Wiring

2.3Wiring

2.3.1Terminal connection diagram

Sink logic

Main circuit terminal

Control circuit terminal

Single-phase power input

	MCCB	MC
	Single-phase	R/L1
	AC power	S/L2
	supply
	MCCB	MC
	Three-phase
	AC power
	supply
		Earth
		(Ground)

	*1. DC reactor (FR-HEL)
	When connecting a DC reactor, remove the
	jumper across P1 and P/+.
	Single-phase 100V power input model is not
	compatible with DC reactor.
											Brake unit
											(Option)
							*1
									R
	Earth							*7
(Ground)

Jumper

PR N/-

	P1	P/+
	*6	U
	R/L1
	S/L2	V
	T/L3	W

Main circuit

Control circuit

*6 Terminal P1 is not available for singlephase 100V power input model.

*7 Brake resistor (FR-ABR, MRS type, MYS type)

Install a thermal relay to prevent an overheat and burnout of the brake resistor. Always install a thermal relay when using a brake resistor whose capacity is 11K or higher.

(The brake resistor can not be connected to the 0.1K and 0.2K.)

Motor

IM

2

Earth (Ground)

Control input signals (No voltage input allowed)

	The function of these	Forward
		rotation start
	terminals can be
		Reverse
	changed to the reset
		rotation start
	signal, etc. with the input
	terminal assignment		High
	(Pr. 178 to Pr. 182).		speed
	Multi-speed selection Middle
			speed
	*2 When using terminals PC-		Low
	SD as a 24VDC power
			speed
	supply, take care not to
	short across terminals		Contact input common
	PC and SD.
			24VDC power supply
	(Common for external power supply transistor)

STF

STR

RH

RM

SD	SOURCE	SINK
RL

PC *2

C

B

A

RUN

SE

Relay output

	Terminal functions vary
Relay output	by Pr. 192 A,B,C terminal
(Fault output)	function selection

	Open collector output
	Terminal functions vary by
Running	Pr. 190 RUN terminal function
	selection

Open collector output common

Sink/source common

Frequency setting signals (Analog)

			3
*3 Terminal input specifications		Frequency
can be changed by analog		setting
input specifications						2
		potentiometer
switchover (Pr. 73).
		1/2W1kΩ
Terminal 10 and terminal 2
are used as PTC input		*4
terminal (Pr. 561).			1
*4 It is recommended to		Terminal 4
use 2W1kΩ when the
		input	(+)
frequency setting signal
is changed frequently.		(Current	(-)
		input)

*5 Terminal input specifications can be changed by analog input specifications switchover (Pr. 267). Set the voltage/current input switch in the "V" position to select voltage input (0 to 5V/0 to10V) and "I" (initial value) to select current input (4 to 20mA).

To use terminal 4 (initial setting is current input), set "4" in any of Pr.178 to Pr.182 (input terminal function selection) to assign the function, and turn ON AU signal.

Safety stop signal	Shorting
Safe stop input (Channel 1)	wire
Safe stop input (Channel 2)
Safe stop input common

10(+5V)

2 0 to 5VDC *3

(0 to 10VDC)

5(Analog common)

4 4 to 20mADC

0 to 5VDC	*5
0 to 10VDC

V I

Voltage/current input switch *5

S1

S2

SC

Calibration resistor

Indicator

+- (Frequency meter, etc.)

Moving-coil type

FM

1mA full-scale

SD

*8

*8 It is not necessary when

PU

calibrating the indicator

from the operation panel.

connector

*9

*9 Operation and parameter setting can be

done from the parameter unit (FR-

PU07) and the enclosure surface

operation panel (FR-PA07).

(Use the option cable (FR-CB2 ).)

RS-485 communication can be utilized

from a personal computer and other

devices.

SO

Terminal functions vary by Pr. 197 SO

terminal function selection

Safety monitor output *10

*10 Common terminal of terminal SO is

terminal SC. (Connected to terminal SD

inside of the inverter.)

NOTE

yTo prevent a malfunction caused by noise, separate the signal cables more than 10cm from the power cables. Also separate the main circuit wire of the input side and the output side.

yAfter wiring, wire offcuts must not be left in the inverter.

Wire offcuts can cause an alarm, failure or malfunction. Always keep the inverter clean. When drilling mounting holes in an enclosure etc., take care not to allow chips and other foreign matter to enter the inverter.

yThe output of the single-phase power input model is three-phase 200V.

8

Wiring

2.3.2Terminal specifications

	Type		Terminal			Terminal Name	Terminal Specification
			Symbol
			R/L1, S/L2,				Connect to the commercial power supply.
						AC power input	Do not connect anything to these terminals when using the high power factor converter (FR-
			T/L3				HC) or power regeneration common converter (FR-CV).
	terminal						* When using single-phase power input, terminals are R/L1 and S/L2.
			P/+, PR			Brake resistor connection	Connect a brake resistor (FR-ABR, MRS type, MYS type) across terminals P/+ and PR.
			U, V, W			Inverter output	Connect a three-phase squirrel-cage motor.
	circuit						(The brake resistor can not be connected to the 0.1K and 0.2K.)
			P/+, N/-			Brake unit connection	Connect the brake unit (FR-BU2), power regeneration common converter (FR-CV) or high
	Main						power factor converter (FR-HC).
			P/+, P1			DC reactor connection	Remove the jumper across terminals P/+ and P1 and connect a DC reactor. (Single-phase
							100V power input model is not compatible with the DC reactor.)
							* Terminal P1 is not available for single-phase 100V power input model.
						Earth (Ground)	For earthing (grounding) the inverter chassis. Must be earthed (grounded).
			STF			Forward rotation start	Turn ON the STF signal to start forward rotation and turn it OFF	When the STF and STR
							to stop.	signals are turned ON
			STR			Reverse rotation start	Turn ON the STR signal to start reverse rotation and turn it	simultaneously, the stop
							OFF to stop.	command is given.
			RH, RM, RL			Multi-speed selection	Multi-speed can be selected according to the combination of RH, RM and RL signals.
						Contact input common	Common terminal for contact input terminal (sink logic) and terminal FM.
						(sink) (initial setting)
		input
			SD			External transistor	Connect this terminal to the power supply common terminal of a transistor output (open
							collector output) device, such as a programmable controller, in the source logic to avoid
		Contact				common (source)
							malfunction by undesirable current.
						24VDC power supply	Common output terminal for 24VDC 0.1A power supply (PC terminal).
						common	Isolated from terminals 5 and SE.
						External transistor	Connect this terminal to the power supply common terminal of a transistor output (open
						common (sink)	collector output) device, such as a programmable controller, in the sink logic to avoid
	signal		PC			(initial setting)	malfunction by undesirable current.
						Contact input common	Common terminal for contact input terminal (source logic).
						(source)
	terminal/Input
						supply	frequency setting (speed setting) from outside of the inverter.	10mA
						24VDC power supply	Can be used as 24VDC 0.1A power supply.
			10			Frequency setting power	Used as power supply when connecting potentiometer for	5VDC
								permissible load current
	circuit
						Frequency setting	frequency at 5V (10V) and makes input and output
			2				Inputting 0 to 5VDC (or 0 to 10V) provides the maximum output	Input resistance10kΩ ± 1kΩ
	Control					(voltage)	proportional. Use Pr. 73 to switch between input 0 to 5VDC	Permissible maximum voltage
		setting						20VDC
							input (initial setting) and 0 to 10VDC.
							Inputting 4 to 20mADC (or 0 to 5V, 0 to 10V) provides the	Current input:
							maximum output frequency at 20mA and makes input and
		Frequency						Input resistance 249Ω ± 5Ω
							output proportional. This input signal is valid only when the AU
								Maximum permissible current
						Frequency setting	signal is ON (terminal 2 input is invalid). To use terminal 4	30mA
			4				(initial setting is current input), set "4" in any of Pr.178 to Pr.182
						(current)	(input terminal function selection) to assign the function, and turn
								Voltage input:
							ON AU signal.	Input resistance10kΩ ± 1kΩ
							Use Pr. 267 to switch among input 4 to 20mA (initial setting), 0
								Permissible maximum voltage
							to 5VDC and 0 to 10VDC. Set the voltage/current input switch	20VDC
							in the "V" position to select voltage input (0 to 5V/0 to 10V).
			5			Frequency setting	Frequency setting signal (terminal 2, 4) common terminal. Do not earth (ground).
						common
		Thermistor	2				terminal 2 is not available for frequency setting.	Adaptive PTC thermistor
								500Ω to 30kΩ (Set by Pr. 561)
			10			PTC thermistor input	For connecting PTC thermistor output.	specification
							When PTC thermistor protection is valid (Pr. 561 ≠ "9999"),	Heat detection resistance :

9

					Wiring
Type		Terminal	Terminal Name	Terminal Specification
		Symbol
	Relay		Relay output	1 changeover contact output indicates that the inverter	Contact capacity:230VAC
signal		A, B, C		protective function has activated and the output stopped.
			(fault output)	Fault: discontinuity across B-C (continuity across A-C),	0.3A (power factor =0.4)
					30VDC 0.3A
				Normal: continuity across B-C (discontinuity across A-C)
terminal/Outputcircuit	collectorOpen		common	Switched Low when the inverter output frequency is equal to or	Permissible load 24VDC
				higher than the starting frequency (initial value 0.5Hz).	(maximum 27VDC) 0.1A
		RUN	Inverter running	Switched High during stop or DC injection brake operation.
					(a voltage drop is 3.4V
				(Low is when the open collector output transistor is ON
					maximum when the signal is
				(conducts). High is when the transistor is OFF (does not
					ON)
				conduct).)
		SE	Open collector output	Common terminal of terminal RUN.
Control
	Pulse	FM	For meter	Used to output a selected monitored item (such as Output	1440 pulses/s at 60Hz
				(Not output during inverter reset.)
				frequency) among several monitored items.	Permissible load current 1mA
				The output signal is proportional to the magnitude of the
										2
				corresponding monitored item.
Communication				With the PU connector, communication can be established through RS-485.
		—	PU connector	yConforming standard: EIA-485 (RS-485)
				yTransmission format: Multidrop link
				yCommunication speed: 4800 to 38400bps
				yOverall length: 500m
		S1	Safety stop input	Terminals S1 and S2 are for safety stop input signals used with	Input resistance 4.7kΩ
			(Channel 1)	the safety relay module. Terminals S1 and S2 are used	Voltage when contacts are
				simultaneously (dual channel). Inverter output is shut off by	open
				shortening/opening across terminals S1 and SC and across S2
			Safety stop input		21 to 26VDC
*		S2		and SC. In the initial status, terminals S1 and S2 are shorted	When contacts are short-
function			(Channel 2)	module when using the safety stop function.
					4 to 6mADC
				with terminal SC by shortening wire.	circuited
				Remove the shortening wire and connect the safety relay
stop
		SC	Safety stop input terminal	Common terminal for terminals S1, S2 and SO. Connected to terminal SD inside of the
Safety			common	inverter.
				The signal indicates the status of safety stop input.	Permissible load 24VDC
			Safety monitor output	Low indicates safe state, and High indicates drive enabled or	(maximum 27VDC) 0.1A
		SO		fault detected.
					(a voltage drop is 3.4V
			(open collector output)	(Low is when the open collector output transistor is ON
					maximum when the signal is
				(conducts). High is when the transistor is OFF (does not
					ON)
				conduct).)
* For more details, refer to the Safety stop function instruction manual (BCN-A211508-000). (Please contact your sales representative for the manual.)

NOTE

yTo change the input specification for terminal 4, set Pr. 267 and the voltage/current input switch correctly, then input the analog signal relevant to the setting. Applying a voltage with voltage/current input switch in "I" position (current input is selected) or a current with switch in "V" position (voltage input is selected) could cause component damage to the inverter or analog circuit of output devices.

yConnecting the power supply to the inverter output terminals (U, V, W) will damage the inverter. Do not perform such wiring.

y indicates that terminal functions can be selected using Pr. 178 to Pr. 182, Pr. 190, Pr. 192, Pr. 197 (I/O terminal function selection).

yThe terminal names and functions shown here are the initial settings.

10

Wiring

2.3.3Terminal arrangement of the main circuit terminal, power supply and the motor wiring

zThree-phase 200V/400V class
FR-D720-0.1K to 0.75K				FR-D720-1.5K to 3.7K
			Jumper	FR-D740-0.4K to 3.7K
	N/-	P/+	PR	N/- P/+	Jumper
					R/L1 S/L2 T/L3
R/L1 S/L2	T/L3

PR

	IM		IM
Power supply	Motor	Power supply	Motor

FR-D720-5.5K, 7.5K	FR-D720-11K, 15K
FR-D740-5.5K, 7.5K

R/L1

S/L2

T/L3

N/-

P/+

PR

N/-	P/+ PR R/L1S/L2 T/L3

Jumper

	IM		Jumper
			IM
Power supply	Motor	Power supply	Motor

FR-D740-11K, 15K

N/-

P/+

PR

R/L1 S/L2 T/L3

Jumper

	IM
Power supply	Motor
zSingle-phase 200V class
FR-D720S-0.1K to 0.75K		FR-D720S-1.5K, 2.2K
	Jumper	N/- P/+	Jumper

	N/-	P/+	PR	R/L1 S/L2
R/L1	S/L2			PR
		IM			IM
				Power supply	Motor
Power supply		Motor

zSingle-phase 100V class

FR-D710W-0.1K to 0.4K

N/-

R/L1 S/L2

Power supply

P/+

PR

IM

Motor

FR-D710W-0.75K

N/-	P/+
	R/L1 S/L2
PR
		IM
	Power supply	Motor

NOTE

yMake sure the power cables are connected to the R/L1, S/L2, T/L3. (Phase need not be matched.) Never connect the power cable to the U, V, W of the inverter. Doing so will damage the inverter.

yConnect the motor to U, V, W. Turning ON the forward rotation switch (signal) at this time rotates the motor counterclockwise when viewed from the load shaft.

11

Wiring

(1)Cable sizes etc., of the main control circuit terminals and earth (ground) terminals

Select the recommended cable size to ensure that a voltage drop will be 2% or less.

If the wiring distance is long between the inverter and motor, a main circuit cable voltage drop will cause the motor torque to decrease especially at the output of a low frequency.

The following table indicates a selection example for the wiring length of 20m.

Three-phase 200V class (when input power supply is 220V)

		Terminal	Tightening	Crimping					Cable Size
	Applicable Inverter			Terminal		HIV Cables, etc. (mm2) 1			AWG 2		PVC Cables, etc. (mm2) 3
	Model	Screw	Torque	R/L1		R/L1		Earthing	R/L1		R/L1		Earthing
		Size 4	N·m		U, V, W		U, V, W			U, V, W		U, V, W
				S/L2		S/L2		(grounding)	S/L2		S/L2		(grounding)
				T/L3		T/L3		cable	T/L3		T/L3		cable
	FR-D720-0.1K to 0.75K	M3.5	1.2	2-3.5	2-3.5	2	2	2	14	14	2.5	2.5	2.5
	FR-D720-1.5K, 2.2K	M4	1.5	2-4	2-4	2	2	2	14	14	2.5	2.5	2.5
	FR-D720-3.7K	M4	1.5	5.5-4	5.5-4	3.5	3.5	3.5	12	12	4	4	4
	FR-D720-5.5K	M5	2.5	5.5-5	5.5-5	5.5	5.5	5.5	10	10	6	6	6
	FR-D720-7.5K	M5	2.5	14-5	8-5	14	8	5.5	6	8	16	10	6
	FR-D720-11K	M5	2.5	14-5	14-5	14	14	14	6	6	16	16	16
	FR-D720-15K	M6 (M5)	4.4	22-6	22-6	22	22	14	4	4	25	25	16

Three-phase 400V class (when input power supply is 440V)												2
	Terminal	Tightening	Crimping					Cable Size
Applicable Inverter			Terminal		HIV Cables, etc. (mm2) 1			AWG 2		PVC Cables, etc. (mm2) 3
Model	Screw	Torque	R/L1		R/L1		Earthing	R/L1		R/L1		Earthing
	Size 4	N·m		U, V, W		U, V, W			U, V, W		U, V, W
			S/L2		S/L2		(grounding)	S/L2		S/L2		(grounding)
			T/L3		T/L3		cable	T/L3		T/L3		cable
FR-D740-0.4K to 3.7K	M4	1.5	2-4	2-4	2	2	2	14	14	2.5	2.5	2.5
FR-D740-5.5K	M4	1.5	5.5-4	2-4	3.5	2	3.5	12	14	4	2.5	4
FR-D740-7.5K	M4	1.5	5.5-4	5.5-4	3.5	3.5	3.5	12	12	4	4	4
FR-D740-11K	M4	1.5	5.5-4	5.5-4	5.5	5.5	8	10	10	6	6	10
FR-D740-15K	M5	2.5	8-5	8-5	8	8	8	8	8	10	10	10

Single-phase 200V class (when input power supply is 220V)

	Terminal	Tightening	Crimping					Cable Size
Applicable Inverter			Terminal		HIV Cables, etc. (mm2) 1			AWG 2		PVC Cables, etc. (mm2) 3
Model	Screw	Torque	R/L1		R/L1		Earthing	R/L1		R/L1		Earthing
	Size 4	N·m		U, V, W		U, V, W			U, V, W		U, V, W
			S/L2		S/L2		(grounding)	S/L2		S/L2		(grounding)
							cable					cable
FR-D720S-0.1K to 0.75K	M3.5	1.2	2-3.5	2-3.5	2	2	2	14	14	2.5	2.5	2.5
FR-D720S-1.5K	M4	1.5	2-4	2-4	2	2	2	14	14	2.5	2.5	2.5
FR-D720S-2.2K	M4	1.5	5.5-4	2-4	3.5	2	3.5	12	14	4	2.5	4

Single-phase 100V class (when input power supply is 100V)

Terminal

Tightening

Crimping

Cable Size

Applicable Inverter

Terminal

HIV Cables, etc. (mm2) 1

AWG 2

PVC Cables, etc. (mm2) 3

Model

Screw

Torque

R/L1

R/L1

Earthing

R/L1

R/L1

Earthing

Size 4

N·m

U, V, W

U, V, W

U, V, W

U, V, W

S/L2

S/L2

(grounding)

S/L2

S/L2

(grounding)

cable

cable

FR-D710W-0.1K to 0.4K

M3.5

1.2

2-3.5

2-3.5

2

2

2

14

14

2.5

2.5

2.5

FR-D710W-0.75K

M4

1.5

5.5-4

2-4

3.5

2

2

12

14

4

2.5

2.5

1 The cable size is that of the cable (HIV cable (600V class 2 vinyl-insulated cable) etc.) with continuous maximum permissible temperature of 75°C. Assumes that the surrounding air temperature is 50°C or less and the wiring distance is 20m or less.

2 The recommended cable size is that of the cable (THHW cable) with continuous maximum permissible temperature of 75°C. Assumes that the surrounding air temperature is 40°C or less and the wiring distance is 20m or less. (Selection example for use mainly in the United States.)

3 The recommended cable size is that of the cable (PVC cable) with continuous maximum permissible temperature of 70°C. Assumes that the surrounding air temperature is 40°C or less and the wiring distance is 20m or less. (Selection example for use mainly in Europe.)

4 The terminal screw size indicates the terminal size for R/L1, S/L2, T/L3, U, V, W, PR, P/+, N/-, P1 and a screw for earthing (grounding). Screw size for earthing (grounding) the FR-D720-15K is indicated in parentheses.

For single-phase power input, the terminal screw size indicates the size of terminal screw for R/L1, S/L2, U, V, W, PR, P/+, N/-, P1 and a screw for earthing (grounding).

NOTE

yTighten the terminal screw to the specified torque. A screw that has been tightened too loosely can cause a short circuit or malfunction. A screw that has been tightened too tightly can cause a short circuit or malfunction due to the unit breakage.

yUse crimping terminals with insulation sleeve to wire the power supply and motor.

The line voltage drop can be calculated by the following formula:

3 × wire resistance[mΩ/m] × wiring distance[m] × current[A]

Line voltage drop [V]=

1000

Use a larger diameter cable when the wiring distance is long or when it is desired to decrease the voltage drop (torque reduction) in the low speed range.

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Wiring

(2)Total wiring length

The overall wiring length for connection of a single motor or multiple motors should be within the value in the table below. 100V, 200V class

	Pr. 72 PWM frequency selection Setting	0.1K	0.2K	0.4K	0.75K	1.5K or
	(carrier frequency)					higher
	1 (1kHz) or less	200m	200m	300m	500m	500m
	2 to15	30m	100m	200m	300m	500m
	(2kHz to 14.5kHz)

400V class

	Pr. 72 PWM frequency selection Setting	0.4K	0.75K	1.5K	2.2K	3.7K or
	(carrier frequency)					higher
	1 (1kHz) or less	200m	200m	300m	500m	500m
	2 to15	30m	100m	200m	300m	500m
	(2kHz to 14.5kHz)

When driving a 400V class motor by the inverter, surge voltages attributable to the wiring constants may occur at the motor terminals, deteriorating the insulation of the motor. Take the following measures 1) or 2) in this case.

1) Use a "400V class inverter-driven insulation-enhanced motor" and set frequency in Pr. 72 PWM frequency selection according to wiring length

		Wiring Length
	50m or less	50m to 100m	Exceeding 100m
Carrier frequency	14.5kHz or less	8kHz or less	2kHz or less

2) Connect the surge voltage suppression filter (FR-ASF-H/FR-BMF-H) on the inverter output side.

	NOTE
	y Especially for long-distance wiring, the inverter may be affected by a charging current caused by the stray
	capacitances of the wiring, leading to a malfunction of the overcurrent protective function, fast response current limit
	function, or stall prevention function or a malfunction or fault of the equipment connected on the inverter output side.
	If malfunction of fast-response current limit function occurs, disable this function. If malfunction of stall prevention
	function occurs, increase the stall level. (		Refer to Pr. 22 Stall prevention operation level and Pr. 156 Stall prevention
	operation selection in the chapter 4 of the Instruction Manual (applied))
	y When using the automatic restart after instantaneous power failure function with wiring length exceeding below,
	select without frequency search (Pr. 162 = "1, 11"). (			Refer to Chapter 4 of the Instruction Manual (Applied))
	Motor capacity	0.1kW		0.2kW	0.4kW or higher
	Wiring length	20m		50m	100m
2.3.4	Wiring of control circuit

(1)Control circuit terminal layout

Recommend wire size:

0.3mm2 to 0.75mm2

10 2 5 4 FM

RUNSESO S1 S2SCSD

A B C RLRMRHSDPCSTFSTR

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