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A-2
(2) Wiring
(3) Trial run
(4) Usage
(5) Emergency stop
(6) Maintenance, inspection and parts replacement
(7) Disposal
zDo not install a power factor correction capacitor or surge
suppressor/capacitor type filter on the drive unit output
side. These devices on the drive unit 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.
zPM 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.
zNever connect a PM motor to the commercial power supply.
Applying the commercial power supply to input terminals (U,
V, W) of a PM motor will burn the PM motor. The PM motor
must be connected with the output terminals (U, V, W) of the
drive unit.
zBefore starting operation, each parameter must be
confirmed and adjusted. A failure to do so may cause some
machines to make unexpected motions.
zA PM motor and the drive unit must be used in the specified
capacity combination.
zDo not use multiple PM motors with one drive unit.
zAny person must stay away from the equipment when the
retry function is set as it will restart suddenly after trip.
z
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.
zOFF status of the start signal must be confirmed before
resetting the drive unit fault. Resetting drive unit alarm with
the start signal ON restarts the motor suddenly.
zDo not use a PM motor in an application where a motor is
driven by its load and runs at a speed higher than the
maximum motor speed.
zDo not use a synchronized, induction, or induced-
synchronized motor, that is not a dedicated PM motor.
zDo not use the drive unit for a load other than the dedicated
PM motor.
Connection of any other electrical equipment to the drive
unit output may damage the equipment.
zDo not modify the equipment.
z
Do not perform parts removal which is not instructed in this
manual. Doing so may lead to fault or damage of the product.
CAUTION
CAUTION
WARNING
z The electronic thermal relay function does not guarantee
protection of the motor from overheating. It is recommended
to install an external thermal for overheat protection.
z Do not use a magnetic contactor on the drive unit input for
frequent starting/stopping of the drive unit. Otherwise, the
life of the drive unit decreases.
z The effect of electromagnetic interference must be reduced
by using an EMC filter or by other means. Otherwise nearby
electronic equipment may be affected.
z Appropriate measures must be taken to suppress
harmonics. Otherwise power supply harmonics from the
drive unit may heat/damage the power factor correction
capacitor and generator.
z
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.
z The drive unit can be easily set for high-speed operation.
Before changing its setting, the performances of the motor
and machine must be fully examined.
z Stop status cannot be hold by the drive unit's brake
function. In addition to the drive unit's brake function, a
holding device must be installed to ensure safety.
z Before running a drive unit which had been stored for a long
period, inspection and test operation must be performed.
z Static electricity in your body must be discharged before
you touch the product. Otherwise the product may be
damaged.
z In the system with a PM motor, the drive unit power must be
turned ON before closing the contacts of the contactor at the
output side.
z If you are installing the drive unit to drive a three-phase
device while you are contracted for lighting and power
service, consult your electric power supplier.
z A safety backup such as an emergency brake must be
provided to prevent hazardous condition to the machine and
equipment in case of drive unit failure.
z When the breaker on the drive unit input side trips, the
wiring must be checked for fault (short circuit), and internal
parts of the drive unit for a damage, etc. The cause of the trip
must be identified and removed before turning ON the power
of the breaker.
z When any protective function is activated, appropriate
corrective action must be taken, and the drive unit must be
reset before resuming operation.
z Do not carry out a megger (insulation resistance) test on the
control circuit of the drive unit. It will cause a failure.
z The drive unit must be treated as industrial waste.
General instruction
Many of the diagrams and drawings in this Instruction Manual
(Basic) show the drive unit without a cover or partially open
for explanation. Never operate the drive unit in this manner.
The cover must be always reinstalled and the instruction in
this Instruction Manual (Basic) must be followed when
operating the drive unit.
For more details on a dedicated PM motor, refer to the
Instruction Manual of the dedicated PM motor.
CAUTION
CAUTION
CAUTION
CAUTION