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Inverter And Peripheral Devices; Specifications - Mitsubishi Electric FR-E700 Instruction Manual

Fr-e740-016 to 300 - ec; fr-e720s-008 to 110 - ec.
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Inverter and peripheral devices

AC power supply
Use within the permissible power supply
specifications of the inverter. To ensure
safety, use a moulded case circuit breaker,
earth leakage circuit breaker or magnetic
contactor to switch power ON/OFF.
(Refer to page 302)
Moulded case circuit breaker
(MCCB) or earth leakage circuit
breaker (ELB), fuse
The breaker must be selected carefully
since an in-rush current flows in the
inverter at power on.
(Refer to page 4)
Magnetic contactor (MC)
Install the magnetic contactor to ensure
safety. Do not use this magnetic contactor
to start and stop the inverter. Doing so will
cause the inverter life to be shorten.
(Refer to page 42)
Reactor (FR-HAL, FR-HEL option)
Reactors (option) must be used when
power harmonics measures are taken,
the power factor is to be improved or the
inverter is installed near a large power
supply system (500kVA or more). The
inverter may be damaged if you do not
use reactors. Select the reactor according
to the model. Remove the jumpers across
terminals + and P1 to connect the DC reactor.
AC reactor (FR-HAL)
Noise filter
Install a noise filter to reduce
the electromagnetic noise
generated from the inverter.
Effective in the range from
about 1MHz to 10MHz. When
more wires are passed
through, a more effective result
can be obtained. A wire should
be wound four turns or more.
High power factor
converter (FR-HC)
Power supply harmonics
can be greatly suppressed.
Install this as required.
Do not install a power factor correction capacitor, surge suppressor or capacitor type filter on the inverter output
side. This will cause the inverter to trip or the capacitor and surge suppressor to be damaged. If any of the above
devices are connected, immediately remove them.
Electromagnetic wave interference
The input/output (main circuit) of the inverter includes high frequency components, which may interfere with the
communication devices (such as AM radios) used near the inverter. In this case, install the FR-BIF optional capacitor
type filter (for use in the input side only) or FR-BSF01 or FR-BLF common mode filter to minimize interference. (Refer
to page 38).
Refer to the instruction manual of each option and peripheral devices for details of peripheral devices.
DC reactor (FR-HEL)
Capacitor type
Reduces the
radio noise.
Brake unit
Power regeneration
Resistor unit (FR-BR)
common converter
Discharging resistor (GZG, GRZG)
Great braking capability
The regenerative braking capability
is obtained.
of the inverter can be exhibited fully.
Install this as required.
Install this as required.
Inverter and peripheral devices
Parameter unit (FR-PU07)
USB connector
A personal computer and an inverter
By connecting the connection cable
(FR-CB2) to the PU connector,
can be connected with a
operation can be performed from
USB (Ver1. 1) cable.
(Refer to page 231)
(Refer to page 27)
R/L1 S/L2 T/L3
Earth (Ground)
Devices connected to the output
Do not install a power factor correction capacitor,
surge suppressor or capacitor type filter on the output
side of the inverter. When installing a moulded case
circuit breaker on the output side of the inverter,
contact each manufacturer for selection of the
moulded case circuit breaker.
Earth (Ground)
To prevent an electric shock, always earth (ground)
the motor and inverter. For reduction of induction noise
from the 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.
Inverter (FR-E700)
The life of the inverter is influenced by
surrounding air 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 8
Wrong wiring might lead to damage of the
inverter. The control signal lines must be
kept fully away from the main circuit to
protect them from noise. (Refer to page 14)
Brake resistor
(FR-ABR, MRS type)
Braking capability can be
improved. (FR-E740-016 or
more, FR-E720S-030 or more)
Always install a thermal relay
when using a brake resistor
whose capacity is 11K or more.
Noise filter
Install a noise filter to reduce the
electromagnetic noise generated
from the inverter.
Effective in the range from about
1MHz to 10MHz. A wire should be
wound four turns at a maximum.
Earth (Ground)


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