Basic Configuration - Mitsubishi Electric FR-A500L Series Instruction Manual

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.)
Name
Use the power supply within the permissible
Power supply
power supply specifications of the inverter.
The breaker should be selected with care
Earth leakage
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
installed near a large power supply system
Reactors
(ten times or more of Inverter Output, and
wiring distance within 10m (32.81 feet) ).
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
inverter is installed in an enclosure.
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.
To prevent an electric shock, always ground
Ground
the motor and inverter.
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