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2. SYSTEM CONNECTION
SAFETY INFORMATION
DANGER
• Do not perform any wiring with power
on. Failure to comply may result in
electric shock.
• Always keep breakers in OFF state.
WARNING
• When installing the drive inside an
enclosed cabinet, use cooling fans or
air conditioner to keep temperature
below 40°C. Failure to comply may
result in overheating or even a fire.
CAUTION
• Cover the top of the drive with a
temporary cloth or paper during
installation to prevent foreign matter
such as metal shavings, oil and water
from falling into the drive. If any foreign
matter falls into the drive, the drive may
have a fault. After the installation is
completed, remove the temporary cloth
or paper. If the cloth or paper is left on
the drive, the drive may have abnormal
heating due to poor ventilation.
• Follow proper electrostatic discharge
(ESD) procedures when operating the
AC drive. Failure to comply will damage
the drive due to static electricity.
• Operating the motor at low speed
reduces the cooling effect of the motor
and increases motor temperature,
which may result in damage to the
motor.
• If the required motor speed range
differs from that of the motor
manufacturer, contact the motor
manufacturer for advice.
• If the torque characteristic is different
with drive operation compared
with operation from a commercial
power supply, check the load torque
characteristic of the connected
machine.
• Pay attention to the load torque
characteristic when selecting the drive
capacity. In addition, when there is a
long distance between drive and motor,
use a larger cable to minimize cable
power losses.
• If the rated current of the motor is
different from a standard motor,
(EX: a two-speed (pole changing)
motor), check the maximum current of
the motor and select an appropriate
AC drive. Switch the pole after the
motor stops.
• Do not lift the AC drive while the front
cover is removed. Failure to comply
may result in damage to PCB and
terminal block.
