
A-2
3.Injury Prevention
4. Additional Instructions
Also the following points must be noted to prevent an
accidental failure, injury, electric shock, etc.
(1) Transportation and Mounting
(2) Wiring
(3) Trial run
(4) Usage
zThe voltage applied to each terminal must be the ones
specified in the Instruction Manual. Otherwise burst,
damage, etc. may occur.
zThe cables must be connected to the correct terminals.
Otherwise burst, damage, etc. may occur.
zPolarity must be correct. Otherwise burst, damage, etc.
may occur.
zWhile power is ON or for some time after power-OFF, do
not touch the inverter since the inverter will be extremely
hot. Doing so can cause burns.
zThe product must be transported in correct method that
corresponds to the weight. Failure to do so may lead to
injuries.
zDo not stack the boxes containing inverters higher than
the number recommended.
zThe product must be installed to the position where
withstands the weight of the product according to the
information in the Instruction Manual.
zDo not install or operate the inverter if it is damaged or
has parts missing.
zWhen carrying the inverter, do not hold it by the front
cover or setting dial; it may fall off or fail.
zDo not stand or rest heavy objects on the product.
zThe inverter mounting orientation must be correct.
zForeign conductive bodies must be prevented to enter the
inverter. That includes screws and metal fragments or
other flammable substance such as oil.
zAs the inverter is a precision instrument, do not drop or
subject it to impact.
zThe inverter must be used under the following
environment: Otherwise the inverter may be damaged.
∗1 Temperature applicable for a short time, e.g. in transit.
zDo 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.
zThe connection orientation of the output cables U, V, W to
the motor affects the rotation direction of the motor.
CAUTION
CAUTION
Environment
Surrounding
air
temperature
-10°C to +50°C (non-freezing)
(-10°C to +40°C for totally-enclosed structure
feature)
Ambient
humidity 90%RH or less (non-condensing)
Storage
temperature -20°C to +65°C *1
Atmosphere Indoors (free from corrosive gas, flammable gas,
oil mist, dust and dirt)
Altitude/
vibration
Maximum 1,000m above sea level.
5.9m/s2or less at 10 to 55Hz (directions of X, Y, Z
axes)
CAUTION
zBefore starting operation, each parameter must be
confirmed and adjusted. A failure to do so may cause
some machines to make unexpected motions.
zAny person must stay away from the equipment when the
retry function is set as it will restart suddenly after trip.
zSince 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.
zOFF 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.
zThe inverter must be used for three-phase induction
motors.
Connection of any other electrical equipment to the
inverter output may damage the equipment.
zDo not modify the equipment.
zDo not perform parts removal which is not instructed in
this manual. Doing so may lead to fault or damage of the
product.
zThe 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.
zDo not use a magnetic contactor on the inverter input for
frequent starting/stopping of the inverter. Otherwise, the
life of the inverter decreases.
zThe effect of electromagnetic interference must be
reduced by using an EMC filter or by other means.
Otherwise nearby electronic equipment may be affected.
zAppropriate measures must be taken to suppress
harmonics. Otherwise power supply harmonics from the
inverter may heat/damage the power factor correction
capacitor and generator.
zWhen 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.
zWhen 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.
zThe inverter can be easily set for high-speed operation.
Before changing its setting, the performances of the
motor and machine must be fully examined.
zStop 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.
zBefore running an inverter which had been stored for a
long period, inspection and test operation must be
performed.
zFor prevention of damage due to static electricity, nearby
metal must be touched before touching this product to
eliminate static electricity from your body.
CAUTION
WARNING
CAUTION