D700 QUICK START MANUAL
4
CAUTION
WIRING
• Do not install a power factor correction capacitor or surge
suppressor/capacitor type filter on the inverter output side. These
devices on the inverter output side may be overheated or burn out.
• The connection orientation of the output cables U, V, W to the motor
will affect the direction of rotation of the motor.
CAUTION
TRIAL RUN
• Before starting operation, confirm and adjust the parameters. A
failure to do so may cause some machines to make unexpected
motions.
DANGER
USAGE
• When you have chosen the retry function, stay away from the
equipment as it will restart suddenly after trip.
• Since pressing STOP/RESET key may not stop output depending on
the function setting status, provide a circuit and switch separately to
make an emergency stop (power off, mechanical brake operation for
emergency stop, etc).
• Make sure that the start signal is off before resetting the inverter
alarm. A failure to do so may restart the motor suddenly.
• The load used should be a three-phase induction motor only.
Connection of any other electrical equipment to the inverter output
may damage the equipment.
• Do not modify the equipment.
• Do not perform parts removal which is not instructed in this manual.
Doing so may lead to fault or damage of the product.
CAUTION
USAGE
• The electronic thermal relay function does not guarantee protection
of the motor from overheating. It is recommended to install both an
external thermal and PTC thermistor for overheat protection.
• Do not use a magnetic contactor on the inverter input for frequent
starting/stopping of the inverter. Otherwise, the life of the inverter
decreases.
• Use a noise filter to reduce the effect of electromagnetic interference.
Otherwise nearby electronic equipment may be affected.
• Take measures to suppress harmonics. Otherwise power supply
harmonics from the inverter may heat/damage the power factor
correction capacitor and generator.
• When a 400V class motor is inverter-driven, please use an
insulation-enhanced motor or measures taken to suppress surge
voltages. Surge voltages attributable to the wiring constants may
occur at the motor terminals, deteriorating the insulation of the
motor.
• When parameter clear or all parameter clear is performed, reset
the required parameters before starting operations. Each parameter
returns to the initial value.
• The inverter can be easily set for high-speed operation. Before
changing its setting, fully examine the performances of the motor
and machine.
• In addition to the inverter’s holding function, install a holding device
to ensure safety.
• Before running an inverter which had been stored for a long period,
always perform inspection and test operation.
• For prevention of damage due to static electricity, touch nearby
metal before touching this product to eliminate static electricity from
your body.
CAUTION
EMERGENCY STOP
• Provide a safety backup such as an emergency brake which will
prevent the machine and equipment from hazardous conditions if the
inverter fails.
• When the breaker on the inverter input side trips, check for the
wiring fault (short circuit), damage to internal parts of the inverter,
etc. Identify the cause of the trip, then remove the cause and power
on the breaker.
• When any protective function is activated, take the appropriate
corrective action, then reset the inverter, and resume operation.
CAUTION
MAINTENANCE, INSPECTION AND PARTS
REPLACEMENT
• Do not carry out a megger (insulation resistance) test on the control
circuit of the inverter. It will cause a failure.
CAUTION
DISPOSAL
• Treat as industrial waste.
1.2 AVAILABLE MODELS
The main unit incorporates a CPU, memory, input and output terminals
and power supply.
FR-
hh
-NA
1.3 CAPACITY AND RATING PLATE
Unpack the inverter and check the capacity plate on the front cover
and the rating plate on the inverter side face to ensure that the product
agrees with your order and the inverter is intact.
2. INSTALLATION OF THE INVERTER
Enclosure surface mounting. Remove the front cover and wiring cover
to fix the inverter to the surface.
FR-D710W-008 to 025
FR-D720-008 to 042
FR-D720S-008 to 042
Rating plate
Inverter type
Input rating
Output rating
Serial number
FR-D740-036-NA
Inverter type
Serial number
Capacity plate
FR-D740-036-NA
Symbol
Voltage Class
D710W
Single-phase 110V class
D720
Three-phase 200V class
D740
Three-phase 400V class
D720S
Single-phase 200V class
Displays the rated current
Front cover
Wiring cover
MitsubishiElectric Automation, Inc.
