Basic Configuration - Mitsubishi Electric FR-E 500 Instruction Manual

1.2 Basic Configuration

1.2 Basic Configuration
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)
Earth (ground)
Power
supply
Earth leakage
circuit
breaker or
no-fuse
breaker
Magnetic
contactor
Reactors
EMC Filter
DC reactor
(FR-BEL)
Inverter
Earth (ground)
Devices
connected to
the output
Earth
(ground)
Name
Use the power supply within the
permissible power supply specifications
of the inverter. (Refer to page 186.)
The breaker should be selected with
care since a large inrush current flows
in the inverter at power on. (Refer to
page 39.)
Do not use this magnetic contactor to
start or stop the inverter. It might reduce
the inverter life. (Refer to page 39.)
The reactors must be used when the
power factor is to be improved or the
inverter is installed near a large power
supply system (1000KVA or more and
wiring distance within 10m). Make
selection carefully.
To reduce mains conducted emissions.
Refer to EMC Installation Guidelines
manual.
•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. (Refer to page 11.)
•Wrong 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 13.)
Do not connect a power capacitor,
surge suppressor or radio noise
filter to the output side.
To prevent an electric shock, always
earth (ground) the motor and inverter.
The ground wiring from the power line
of the 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
36)
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