Mitsumi electronic 55K, FR-F520-0.75K Basic Configuration, Basic configuration, Name Description

1.2 Basic Configuration

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1.2.1 Basic configuration

The following devices are required to operate the inverter. Proper peripheral devices must be selected and correct connections made to ensure proper operation. Incorrect system configuration and connections can cause the inverter to operate improperly, its life to be reduced considerably, and in the worst case, the inverter to be damaged.

Please handle the inverter properly in accordance with the information in each section as well as the precautions and instructions of this manual. (For connections of the peripheral devices, refer to the corresponding manuals.)

(NFB) or (ELB)

(MC)

AC reactor (FR-BAL)

DC reactor

(FR-BEL)

Ground

Ground

Name		Description
	Use the power supply within the permissible
Power supply	power supply specifications of the inverter.
	(Refer to page 184.)
Earth leakage	The breaker should be selected with care
circuit breaker
	since a large inrush current flows in the
(ELB) or no-fuse
	inverter at power on. (Refer to page 37.)
breaker (NFB)
	The magnetic contactor need not be
Magnetic	provided. When installed, do not use it to
	start or stop the inverter. It might reduce the
contactor
	inverter life.
	(Refer to page 37.)
	The reactors must be used when the power
	factor is to be improved or the inverter is
Reactors	installed near a large power supply system
	(1000kVA or more and wiring distance
	within 10m (32.81feet)). Make selection
	carefully.
	•	The inverter life is influenced by ambient
		temperature. The ambient temperature
		should be as low as possible within the
		permissible range.
		This must be noted especially when the
		inverter is installed in an enclosure.
Inverter		(Refer to page 7.)
	•	Incorrect wiring might lead to inverter
		damage. The control signal lines should
		be kept away from the main circuit to
		protect them from noise.
		(Refer to page 9.)
Devices	Do not connect a power capacitor, surge
connected to the	suppressor or radio noise filter to the output
output	side.
	To prevent an electric shock, always ground
	the motor and inverter.
	The ground wiring from the power line of the
Ground	inverter as an induction noise reduction
	technique is recommended to be run by
	returning it to the ground terminal of the
	inverter. (Refer to page 35)

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Japanese Harmonic Suppression Guideline

The “harmonic suppression guideline for household appliances and general-purpose prod*ucts” was issued by Ministry of Economy, Trade and Industry (formerly Ministry of International Trade and Industry) in September, 1994. This guideline applies to the FR-F520-0.75K to 3.7K. By connection of the power factor improving reactor (FR-BEL or FR-BAL), this product conforms to the “harmonic suppression technique for transistorized inverters (input current 20A or less)” set forth by the Japan Electrical Manufactures′ Association.

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