Basic Configuration - Mitsubishi Electric FR-E500 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)
Ground
Japanese Harmonic Suppression Guideline
The "harmonic suppression guideline for household appliances and general-purpose
products" was issued by the Ministry of International Trade and Industry in September,
1994. This guideline applies to the 3.7K* and less models of three-phase 200V classes.
By installing the power factor improving reactor (FR-BEL or FR-BAL), inverters comply
with the "harmonic suppression techniques for transistorized inverters (input current 20A
or less)" established by the Japan Electrical Manufacturers' Association.
* For the single-phase 100V class, the guideline applies to 0.75kW and less models.
Power
supply
E arth leakage
circuit breaker
or no-fuse
breaker
Magnetic
contactor
Reactors
DC reactor
(FR-BEL)
Inverter
Ground
Devices
connected
to the output
Ground
Name
Use the power supply within the
permissible power supply specifications
of the inverter. (Refer to page 188.)
The breaker should be selected with
care since a large inrush current flows
in the inverter at power on. (Refer to
page 42.)
Do not use this magnetic contactor to
start or stop the inverter. It might reduce
the inverter life. (Refer to page 42.)
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 (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 is installed in an enclosure.
(Refer to page 12.)
•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
14.)
Do not connect a power capacitor,
surge suppressor or radio noise
filter to the output side.
To prevent an electric shock, always
ground the motor and inverter.
3
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