Mitsubishi Electric 700 Series Instruction Manual page 3

3.Injury Prevention
CAUTION
The voltage applied to each terminal must be the ones
specified in the Instruction Manual. Otherwise burst,
damage, etc. may occur.
The cables must be connected to the correct terminals.
Otherwise burst, damage, etc. may occur.
Polarity must be correct. Otherwise burst, damage, etc.
may occur.
While power is ON or for some time after power-OFF, do
not touch the inverter as they will be extremely hot. Doing
so can cause burns.
4. Additional Instructions
Also the following points must be noted to prevent an
accidental failure, injury, electric shock, etc.
(1) Transportation and Mounting
CAUTION
The product must be transported in correct method that
corresponds to the weight. Failure to do so may lead to
injuries.
Do not stack the boxes containing inverters higher than
the number recommended.
The product must be installed to the position where
withstands the weight of the product according to the
information in the Instruction Manual.
Do not install or operate the inverter if it is damaged or
has parts missing.
When carrying the inverter, do not hold it by the front
cover or setting dial; it may fall off or fail.
Do not stand or rest heavy objects on the product.
The inverter mounting orientation must be correct.
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 inverter must be used under the following
environment. Otherwise the inverter may be damaged.
Surrounding
air -10°C to +50°C (non-freezing)
temperature
Ambient
90%RH or less (non-condensing)
humidity
Storage
-20°C to +65°C *1
temperature
Indoors (free from corrosive gas, flammable gas,
Atmosphere
oil mist, dust and dirt)
Maximum 1,000m above sea level.
Altitude/
2
5.9m/s or less at 10 to 55Hz (directions of X, Y, Z
vibration
axes)
∗1 Temperature applicable for a short time, e.g. in transit.
(2) Wiring
CAUTION
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 affects the rotation direction of the motor.
A-2
(3) Trial run
CAUTION
Before starting operation, each parameter must be
confirmed and adjusted. A failure to do so may cause
some machines to make unexpected motions.
(4) Usage
WARNING
Any person must stay away from the equipment when the
retry function is set as it will restart suddenly after trip.
Since pressing 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 alarm with
the start signal ON restarts the motor suddenly.
The inverter must be used for three-phase induction motors.
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
The electronic thermal relay function does not guarantee
protection of the motor from overheating. It is recommended
to install both an external thermal 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 measures 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 by the inverter, the
motor must be an insulation-enhanced motor or measures
must be taken to suppress surge voltage. Surge voltage
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,
the required parameters must be set again before starting
operations because all parameters return to the initial value.
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.
Stop status cannot be hold by the inverter's brake
function. In addition to the inverter's brake function, a
holding device must be installed to ensure safety.
Before running an inverter which had been stored for a long
period, inspection and test operation must be performed.
For prevention of damage due to static electricity, nearby
metal must be touched before touching this product to
eliminate static electricity from your body.