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

Wiring

3 Wiring
3.1

Inverter and peripheral devices

AC reactor
(FR-BAL-B)
High power factor
converter (FR-HC)
Power supply harmonics
can be greatly suppressed.
Install this as required.
Fig. 3-1: System configuration overview
FR-E700 EC
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 Appendix A.)
Moulded case circuit breaker
(MCCB) or earth leakage circuit
breaker (ELB), fuse
The breaker ust be selected carefully
since an in-rush current flows in the
inverter at power on.
(Refer to section 3.1.1.)
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 section 3.1.1.)
DC reactor
(FR-HEL)
EMC filter
(optional)
Install this as
required.
Power regeneration
common converter
(FR-CV)
Greater braking capability
is obtained.
Install this as required.
Reactor (FR-BAL-B, FR-HEL)
Reactors (option) should 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 to the DC reactor. (Refer to section 3.1.1).
Parameter unit
(FR-PU07)
By connecting the
connection cable
(FR-A5CBL) to the
PU connector, op-
eration can be per-
formed from
FR-PU07.
Inverter (FR-E700 EC)
The life of the inverter is influenced by ambient tempera-
ture. The ambient temperature should be as low as pos-
sible within the permissible range. Especially when
mounting the inverter inside an enclosure, take cautions
of the ambient temperature. (Refer to section 2.4.2.)
+ P1
Earth
Capacitor
type filter
(optional)
Brake unit
(FR-BU2/BU-UFS)
Resistor unit (FR-BR)
Discharging resistor
(GZG, GRZG)
The regenerative braking
capability of the inverter can
be exhibited fully. Install this
as required.
Inverter and peripheral devices
USB connector
A personal computer can be
connected with a USB (Ver1. 1)
cable.
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 section 3.2.)
Brake resistor (FR-ABR, MRS)
Braking capability can be
improved. (FR-E720S-030 or
more, FR-E740-16 or more).
Always install a thermal relay
when using a brake resistor
whose capacity is 11K or more.
FFR-DT = Output filter
FFR-SI = Sine wave filter
Devices connected to the output
Do not install a power factor correction
capacitor, surge suppressor, arrester or
radio noise 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
To prevent an electric shock, always earth
the motor and inverter.
Earth
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