Mitsubishi Electronics instruction manual Connection with Peripheral Devices, Inverter FR-F700

Connection with Peripheral Devices

Peripheral devices necessary for driving the FR-F700 series inverter are indicated below.

Three-phase AC power supply			Inverter (FR-F700)
			The life of the inverter is influenced by ambient temperature.
Use within the permissible power supply
	PLC		The ambient temperature should be as low as possible within
specifications of the inverter.			the permissible range. (Refer to page 8.) This must be noted
(Refer to page 7.)			especially when the inverter is installed in an enclosure.
			Wrong wiring might lead to damage of the inverter. The control
			signal lines must be kept fully away from the main circuit to
Moulded case circuit			protect them from noise.
		RS-485 terminal block
breaker (MCCB)
or earth leakage circuit		The inverter can be
breaker (ELB), fuse		connected with computers
		such as PLC.
The breaker must be selected carefully since
		It supports Mitsubishi inverter
an in-rush current flows in the inverter at
		protocol and Modbus-RTU
power on.
		(binary) protocol.
(Refer to page 57.)

Magnetic contactor(MC)

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 shorten.

(Refer to page 57.).

Reactor (FR-HAL, FR-HEL)

Reactors (option) should be used when power harmonics measures are taken, the power factor is to be improved or the inverter is installed near a large power supply system (1000kVA or more). The inverter may be damaged if you do not use reactors.

Select the reactor according to the model.

For the 55K or less, remove the jumpers across terminals P/+-P1 to connect to the DC reactor.

(Refer to page 51.).

							Noise filter
AC reactor	DC reactor						(FR-BSF01, FR-BLF)
(FR-HAL)	(FR-HEL)	P/+ P1	R/L1 S/L2 T/L3	P/+ N/-			Install a noise filter to reduce
(Refer to page 51.)						U V W	the electromagnetic noise
	For the 75K or more, a DC				Earth
	reactor is supplied.						generated from the inverter.
Noise filter					(Ground)
	Always install the reactor.						Effective in the range from
(FR-BLF)
	(Refer to page 51.)						about 1MHz to 10MHz.
It is not necessary							When more wires are passed
for the 55K or less.							through, a more effective result
							can be obtained.

Motor

		Brake unit
		(FR-BU*1, MT-BU5*2)
			Earth
			(Ground)
		P/+ PR	Devices connected to the output
		P/+	Do not install a power factor correction capacitor,
			surge suppressor or radio noise filter on the output
		PR
	Power regeneration		side of the inverter.
	common converter		When installing a moulded case circuit breaker on the
High power factor	(FR-CV*1)	Resistor unit	output side of the inverter, contact each manufacturer
converter		(FR-BR*1, MT-BR5*2)	for selection of the moulded case circuit breaker.
	Power regeneration
(FR-HC*1, MT-HC*2)			Earth (Ground)
	converter (MT-RC*2)	The regenerative braking
			To prevent an electric shock, always earth
Power supply harmonics	Greater braking capability	capability of the inverter can be
			(ground) the motor and inverter.
can be greatly suppressed.	is obtained.	exhibited fully.
Install this as required.	Install this as required.	Install this as required.

*1 Compatible with the 55K or less.

*2 Compatible with the 75K or more.

Refer to page 49 for the option list and details.

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