Mitsubishi Electric A800-GF Instruction Manual page 3

CAUTION
Transportation and installation
 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
directions. Otherwise this 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.)
 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. A failure to do so may cause some machines to
make unexpected motions.
WARNING
Usage
 Stay away from the equipment when the retry function is set as it
will restart suddenly after a trip.
 Since pressing a 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 problem 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.
2
Safety Instructions
2
at 10 to 55 Hz in X, Y, and Z
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.
 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 400V class motor with the inverter, 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 beforeyou
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 a 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.
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 a protective function activates, take an appropriate
corrective action, then reset the inverter, and resume the
operation.
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.
Disposal
 The inverter must be treated as industrial waste.