II
PLEASE READ PRIOR TO INSTALLATION FOR SAFETY.
Disconnect AC input power before connecting any wiring to the AC motor drive.
Even if the power has been turned off, a charge may still remain in the DC-link
capacitors with hazardous voltages before the POWER LED is OFF. Do NOT touch the
internal circuits and components.
There are highly sensitive MOS components on the printed circuit boards. These
components are especially sensitive to static electricity. Take anti-atatic measure
before touching these components or the circuit boards.
Never modify the internal components or wiring.
Ground the AC motor drive by using the ground terminal. The grounding method must
comply with the laws of the country where the AC motor drive is to be installed.
Do NOT install the AC motor drive in a location with high temperature, direct sunlight or
inflammable materials or gases.
Never connect the AC motor drive output terminals U/T1, V/T2 and W/T3 directly to the
AC mains circuit power supply.
After finishing the wiring of the AC motor drive, check if U/T1, V/T2, and W/T3 are
short-circuited to ground with a multimeter. Do NOT power the drive if short circuits occur.
Eliminate the short circuits before the drive is powered.
The rated voltage of power system to install motor drives is listed below. Ensure that the
installation voltage is in the correct range when installing a motor drive.
For 460V models, the range is between 323–528V.
Refer to the table below for short circuit rating:
Model (Power) Short circuit rating
460V 100 kA
Only qualified persons are allowed to install, wire and maintain the AC motor drives.
Even if the three-phase AC motor is stopped, a charge with hazardous voltages may still
remain in the main circuit terminals of the AC motor drive.
The performance of electrolytic capacitor will degrade if it is not charged for a long time. It
is recommended to charge the drive which is stored in no charge condition every 2 years
for 3–4 hours to restore the performance of electrolytic capacitor in the motor drive. Note:
When power up the motor drive, use adjustable AC power source (ex. AC
autotransformer) to charge the drive at 70%–80% of rated voltage for 30 minutes (do not
run the motor drive). Then charge the drive at 100% of rated voltage for an hour (do not
run the motor drive). By doing these, restore the performance of electrolytic capacitor
before starting to run the motor drive. Do NOT run the motor drive at 100% rated voltage
right away.
Pay attention to the following precautions when transporting and installing this package
(including wooden crate and wood stave)
1. If you need to deworm the wooden crate, do NOT use fumigation or you will damage
the drive. Any damage to the drive caused by using fumigation voids the warranty.
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