Delta Compact Drive MS300 IP66/NEMA 4X Series User Manual page 4

PLEASE READ PRIOR TO INSTALLATION FOR SAFETY.
Disconnect AC input power before connecting any wiring to the AC motor drive.

There are highly sensitive MOS components on the printed circuit boards.
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These components are especially sensitive to static electricity. Take anti-static
measures before touching these components or the circuit boards.
Never modify the internal components or wiring.
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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 230V models, the range is between 170–264 V.
For 460V models, the range is between 323–528 V.
See the table below for the short-circuit current capacity
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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
2
Model Series (Power)
230V / 460V
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.
Use other methods, such as heat treatment or any other non-fumigation
treatment, to deworm the wood packaging material.
Short-circuit Current Capacity
100 kA
I