Mitsubishi Electric A800 Plus 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 etc.) Otherwise the product
may be damaged.
 Do not use this product at an altitude above 2500 m. Vibration
should not exceed 2.9 m/s2 at 10 to 55 Hz in X, Y, and Z
directions. Otherwise the product 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.) (Refer to
page 20 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.
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.
Trial run
 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
 Stay away from the equipment after using the retry function in
this product as the equipment will restart suddenly after the
output shutoff of this product.
 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 (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. This product with the start command
ON may also rotate the motor at a low speed when the speed
limit value is set to zero. Confirm that the motor running will not
cause any safety problems before performing pre-excitation.
 Do not modify this product.
 Do not perform parts removal which is not instructed in this
manual. Doing so may lead to fault or damage of this product.
2
Safety instructions
CAUTION
Usage
 The electronic thermal O/L relay function may not be enough for
protection of the motor from overheating. It is recommended to
install an external thermal relay or a 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.
 Use a noise filter or other means to minimize the
electromagnetic interference with other electronic equipment
used nearby this product.
 Appropriate precautions must be taken to suppress harmonics.
Otherwise power harmonics from this product may heat/damage
a power factor correction capacitor or a generator.
 To drive a 400 V class motor 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 parameters must
be set again as required 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.
 In order to protect this product and the system against
unauthorized access from external sources through Ethernet
communication, take security measures such as setting up a
firewall.
 Depending on the Ethernet network environment, this product
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.
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. Identify and remove the cause of the trip
before resetting the tripped breaker and applying the power to
the product again.
 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.