Mitsubishi FR-A800-E Instruction Manual page 3

 Additional Instructions
The following instructions must be also followed. If the product
is handled incorrectly, it may cause unexpected fault, an injury,
or an electric shock.
CAUTION
Transportation and installation
 To prevent injury, wear cut-resistant gloves when opening
packaging with sharp tools.
 Use proper lifting techniques or a trolley when carrying
products. Failure to do so may lead to injuries.
 Do not stand or rest heavy objects on the product.
 Do not stack the boxes containing inverters higher than the
number recommended.
 When carrying the inverter, do not hold it by the front cover;
it may fall off or fail.
 During installation, caution must be taken not to drop the
inverter as doing so may cause injuries.
 The product must be installed on a surface that withstands
the weight of the inverter.
 Do not install the product on a hot surface.
 Ensure the mounting orientation of this product is correct.
 Ensure this product is mounted securely in its enclosure.
 Do not install or operate the inverter if it is damaged or has
parts missing.
 Foreign conductive objects must be prevented from
entering the inverter. That includes screws and metal
fragments or other flammable substance such as oil.
 As the inverter is a precision instrument, do not drop or
subject it to impact.
 The ambient temperature must be between -10 and +40°C
(non-freezing). Otherwise the inverter may be damaged.
 The ambient humidity must be 95% RH or less (non-
condensing). Otherwise the inverter may be damaged.
(Refer to page 18 for details.)
 The storage temperature (applicable for a short time, e.g.
during transit) must be between -20 and +65°C. Otherwise
the inverter may be damaged.
 The inverter must be used indoors (without corrosive gas,
flammable gas, oil mist, dust and dirt etc.) Otherwise the
inverter may be damaged.
 Do not use this product at an altitude above 2500 m.
Vibration should not exceed 2.9 m/s
and Z directions. Otherwise the inverter may be damaged.
(For installation at an altitude above 1000 m, consider a 3%
reduction in the rated current per 500 m increase in
altitude.)
 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. These devices may overheat or burn out.
 The output terminals (terminals U, V, and W) must be
connected to a motor correctly. Otherwise the motor will
rotate inversely.
 PM motor terminals (U, V, W) hold high-voltage while the PM
motor is running even after the power is turned OFF. Before
wiring, the PM motor must be confirmed to be stopped.
Otherwise you may get an electric shock.
 Never connect a PM motor to a commercial power supply.
Connecting a commercial power supply to the input
terminals (U, V, W) of a PM motor will burn it out. The PM
motor must be connected with the output terminals (U, V, W)
of the inverter.
Test operation
 Before starting operation, each parameter must be
confirmed and adjusted. Failure to do so may cause some
machines to make unexpected motions.
2

2.9 m/s or less for the FR-A846-01800(55K) or higher.
2
Safety Instructions
2
at 10 to 55 Hz in X, Y,

WARNING
Usage
 Stay away from the equipment when the retry function is set
as it will restart suddenly after a trip.
 Since pressing the STOP/RESET key may not stop output
depending on the function setting status, separate circuit
and switch that make an emergency stop (power OFF,
mechanical brake operation for emergency stop, etc.) must
be provided.
 OFF status of the start signal must be confirmed before
resetting the inverter fault. Resetting inverter fault with the
start signal ON restarts the motor suddenly.
 Do not use a PM motor for an application where the PM
motor is driven by its load and runs at a speed higher than
the maximum motor speed.
 Use this inverter only with three-phase induction motors or
with a PM motor. Connection of any other electrical
equipment to the inverter output may damage the
equipment.
 Performing pre-excitation (LX signal and X13 signal) under
torque control (Real sensorless vector control) may start
the motor running at a low speed even when the start
command (STF or STR) is not input The motor may run also
at a low speed when the speed limit value = 0 with a start
command input. It must be confirmed that the motor
running will not cause any safety problems before
performing pre-excitation.
 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 repeatedly start or stop this product with a magnetic
contactor on its input side. Doing so may shorten the life of
this product.
 The effect of electromagnetic interference must be reduced
by using a noise filter or by other means. Otherwise nearby
electronic equipment may be affected.
 Appropriate precautions must be taken to suppress
harmonics. Otherwise power supply harmonics from the
inverter may heat/damage the power factor correction
capacitor and generator.
 When driving a 400 V class motor with this product, the
motor must be an insulation-enhanced motor or measures
must be taken 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.
 When parameter clear or all parameter clear is performed,
the required parameters must be set again before starting
operations because all parameters return to their initial
values.
 The inverter can be easily set for high-speed operation.
Before changing its setting, the performances of the motor
and machine must be fully examined.
 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.
 Static electricity in your body must be discharged before
you touch the product.
 Only one PM motor can be connected to an inverter.
 A PM motor must be used under PM sensorless vector
control. Do not use a synchronous motor, induction motor,
or synchronous induction motor.
 Do not connect a PM motor in the induction motor control
settings (initial settings). Do not use an induction motor in
the PM sensorless vector control settings. It will cause
failure.
 In the system with a PM motor, the inverter power must be
turned ON before closing the contacts of the contactor at
the output side.
 In order to protect the inverter and the system against
unauthorized access by external systems via network, take
security measures including firewall settings.
 Depending on the network environment, the inverter may
not operate as intended due to delays or disconnection in
communication. Carefully consider what type of
environment this product will be used in and any safety
issues related to its use.