Table of Contents
Advertisement
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)
Japanese Harmonic Suppression Guideline
The "harmonic suppression guideline for household appliances and general-purpose products" 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 complies the "harmonic suppression
technique for transistorized inverters (input current 20A or less)" established by the Japan Electrical
Manufactures' Association.
DC reactor
(FR-BEL)
Earth
(Ground)
Name
Use the power supply within the permissible
Power supply
power supply specifications of the inverter.
(Refer to page 187.)
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 39.)
breaker (NFB)
Install the magnetic contactor to ensure
safety. Do not use this magnetic contactor
Magnetic
to start or stop the inverter. Doing so will
contactor
cause the inverter life to be shorter.
(Refer to page 39.)
Reactors must be used when the power
factor is to be improved or when the inverter
is installed near a large power supply
Reactors
system (1000kVA or more and wiring
distance is within 10m (32.81feet)). Make
selection carefully.
• The life of the inverter 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.)
• Wrong wiring might lead to damage of the
inverter. The control signal lines should
be kept fully away from the main circuit to
protect them from noise.
(Refer to page 9.)
Do not connect a power capacitor, surge
suppressor or radio noise filter on the output
Devices
side.
connected to the
Note: When installing a no-fuse breaker
output
(NFB) on the output side, contact the
NFB manufacturer for selection of no-
fuse breaker.
To prevent an electric shock, always earth
(ground) the motor and inverter.
For reduction of induction noise from the
Earth (Ground)
power line of the inverter, it is
recommended to wire the earth (ground)
cable by returning it to the earth (ground)
terminal of the inverter. (Refer to page 37)
2
OUTLINE
Description
1
Advertisement
Table of Contents
