Mitsubishi Electric FR-A802-P Instruction Manual page 3

CAUTION
Transportation and installation
 The temporary storage temperature (applicable to a short limited
time such as a transportation time) must be between -20 and
+65°C. Otherwise this product may be damaged.
 This product must be used indoors (without corrosive gas,
flammable gas, oil mist, dust and dirt). Otherwise the product
may be damaged.
 Do not use this product at an altitude above 2500 m. Vibration
should not exceed 2.9 m/s
directions. Otherwise the product may be damaged. (For the
installation at an altitude above 1000 m, consider a 3% reduction
in the rated current per 500 m increase in altitude.) (Refer to
page 18 for details.)
 If halogens (including fluorine, chlorine, bromine, and iodine)
contained in fumigants for wood packages enter this product, the
product may be damaged. Prevent the entry of fumigant
residuals or use an alternative method such as heat disinfection.
Note that sterilization or disinfection of wood packages should be
performed before packing the product.
Wiring
 Do not install a power factor correction capacitor, surge absorber,
or radio noise filter on the output side of this product. Doing so
may be overheated or burn out.
 The output of this product (output terminals U, V, W) must be
correctly connected to a motor. Otherwise the motor rotates
inversely.
Test operation
 Before starting the test operation, confirm or adjust the
parameter settings. Failure to do so may cause some machines
to make unexpected motions.
WARNING
Usage
 Depending on the function settings of this product, the product
does not stop its output even when the STOP/RESET key on the
operation panel is pressed. To prepare for it, provide a separate
circuit and switch (to turn OFF the power of this product, or apply
a mechanical brake, etc.) for an emergency stop.
 Be sure to turn OFF the start (STF/STR) signal before clearing
the fault as this product will restart the motor suddenly after a
fault is cleared.
 Use only a three-phase induction motor as a load on this
product. Connection of any other electrical equipment to the
output of this product may damage the equipment.
 Performing pre-excitation (by using the LX or X13 signal) during
torque control (under Real sensorless vector control) may rotate
a motor at a low speed even though a start command (STF or
STR) is not given. This product with the start command ON may
also rotate the motor at a low speed even though the speed limit
value is set to 0. Confirm that the motor running will not cause
any safety problems before performing pre-excitation.
 Do not modify this product.
 Do not remove any part which is not instructed to be removed in
the Instruction Manuals. Doing so may lead to a failure or
damage of this product.
CAUTION
Usage
 The electronic thermal O/L relay function may not be enough for
protection of a motor from overheating. It is recommended to
install an external thermal relay or a PTC thermistor for overheat
protection.
 Do not use a magnetic contactor on the input side of this product
for frequent starting/stopping of this product. Otherwise the life of
the product decreases.
 Use a noise filter or other means to minimize the electromagnetic
interference with other electronic equipment used nearby this
product.
2
Safety instructions
2
at 10 to 55 Hz in X, Y, and Z
CAUTION
Usage
 Appropriate precautions must be taken to suppress harmonics.
Otherwise harmonics in power systems generated from this
product may heat/damage a power factor correction capacitor or
a generator.
 For a 400 V class motor driven with this product, use an
insulation-enhanced motor, or take measures to suppress surge
voltage. Otherwise surge voltage, which is attributed to the
length and thickness of wire, may occur at the motor terminals,
causing the motor insulation to deteriorate.
 As all parameters return to their initial values after the Parameter
clear or All parameter clear is performed, the needed parameters
for this product operation must be set again before the operation
is started.
 This product can be easily set for high-speed operation.
Therefore, consider all things related to the operation such as the
performance of a motor and equipment in a system before the
setting change.
 This product's brake function cannot be used as a mechanical
brake. Use a separate device instead.
 Perform an inspection and test operation of this product if it has
been stored for a long period of time.
 To avoid damage to this product due to static electricity, static
electricity in your body must be discharged before you touch this
product.
Emergency stop
 A safety backup such as an emergency brake must be provided
for devices or equipment in a system to prevent hazardous
conditions in case of failure of this product or an external device
controlling this product.
 If the breaker installed on the input side of this product trips,
check for wiring faults (short circuits etc.) and damage to internal
parts of this product.
 When any protective function is activated, take an appropriate
corrective action before resetting this product to resume the
operation.
Maintenance, inspection and parts replacement
 Do not carry out a megger (insulation resistance) test on the
control circuit of this product. Doing so will cause a failure.
Disposal
 This product must be treated as industrial waste.
Application of caution label
A caution label is used to ensure safety during use of Mitsubishi Electric
inverters.
Apply the following label to the inverter if the "automatic restart after
instantaneous power failure" has been enabled.
 For automatic restart after instantaneous power failure
CAUTION
Automatic Restart after
Instantaneous Power Failure
Has Been Selected
Stay away from the motor and machine.
They will start suddenly (after reset time
has elapsed) when instantaneous
power failure occurs.
General instruction
 For clarity, illustrations in this Instruction Manual may be drawn
with covers or safety guards removed. Ensure all covers and
safety guards are properly installed prior to starting operation.