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Fr-Xc Series Converter And Peripheral Devices - Mitsubishi Electric FR-XC-18.5K-PWM Instruction Manual

Fr-xc series multifunction regeneration converter
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FR-XC series converter and peripheral devices

1.3
FR-XC series converter and peripheral
devices
<Example for the common bus regeneration mode>
Earth (ground)
Dedicated box-type reactor
FR-XCB
(used when harmonic
suppression enabled)
Confirm that the capacity of the
FR-XCB reactor is appropriate
for the capacity of the converter.
16
OUTLINE
Three-phase AC power supply
Use power supply within the
permissible specifications of the
converter.
Molded case circuit breaker (MCCB) or
earth leakage circuit breaker (ELB) and fuse
The breaker must be selected carefully since
an inrush current flows in the converter at
power ON.
(Refer to
page
19.)
Magnetic contactor (MC)
Install the MC to ensure safety.
Do not use this MC to start and stop the
converter and the inverter. Doing so will
shorten the life of the inverter and the
converter.
Dedicated stand-alone reactor
FR-XCL
(used when harmonic
suppression disabled)
Confirm that the capacity of the
FR-XCL reactor is appropriate for
the capacity of the converter.
(Refer to
page
Earth (ground)
Devices on the inverter's output side
Do not install a power factor correction capacitor or surge
suppressor or capacitor type filter on the inverter's output
side.
When installing a molded case circuit breaker (MCCB) on
the inverter's output side, contact the manufacturer of
MCCB for MCCB selection.
Earth (ground)
Always earth (ground) the converter, the dedicated reactor
FR-XCL or FR-XCB, the inverter, and the motor.
R2 S2
T2
60.)
Earth (ground)
FR-XC series converter
Install and wire correctly.
Do not install a molded case
circuit breaker (MCCB) on the
main circuit cables between the
inverter and the converter
(terminals P to P and terminals N
to N).
(Refer to
page
57.)
P N
Earth (ground)
Fuse
Installation of a fuse is
recommended for safety. Select a
fuse according to the connected
motor capacity.
(Refer to
page
21.)
Inverter
Select an inverter according to
the capacity of the converter.
The control logic (sink
logic/source logic) of the
converter and the inverter must
be matched.
(Refer to
page
51.)
Earth (ground)
Motor

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