Mitsubishi Electronics FR-A500L Basic Configuration, Basic configuration, Nfb Elb

1.2Basic 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 (MT-BAL)

Ground

Name	Description
Power supply	Use the power supply within the permissible
	power supply specifications of the inverter.
Earth leakage	The breaker should be selected with care
	since a large inrush current flows in the
circuit breaker
	inverter at power on.
(ELB) or no-fuse
	The breaker must have overcurrent
breaker (NFB)
	protection and earth leakage protection.
	The magnetic contactor need not be
Magnetic	provided. When installed, do not use
contactor	it to start or stop the inverter. It might reduce
	the inverter life.
	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
	(ten times or more of Inverter Output, and
	wiring distance within 10m (32.81 feet) ).
	Make selection carefully.
	z The inverter life is influenced by ambient
	temperature. The ambient temperature
	should be as low as possible within the
	permissible range.
Inverter	This must be noted especially when the
	inverter is installed in an enclosure.
	z Incorrect wiring might lead to inverter
	damage. The control signal lines must be
	kept fully away from the main circuit to
	protect them from noise.
Devices	Do not connect a power capacitor, surge
connected to the	suppressor or radio noise filter to the output
output	side.
Ground	To prevent an electric shock, always ground
	the motor and inverter.

Ground

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