IV
PLEASE READ PRIOR TO INSTALLATION FOR SAFETY.
Disconnect AC input power before connecting any wiring to the AC motor drive.
When wiring, turn off the AC motor drive power first. It takes a certain time for the
internal DC capacitor to discharge. 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. To avoid damage, use a voltmeter for testing. Wiring only
after the voltage is lower than the safety voltage value of 25 V
DC
. If the AC motor drive
does not fully discharge, there will be residual voltage inside. Any wiring at this time
causes short-circuit and fire. It is strongly suggested to operate the wiring under no-
voltage conditions to ensure personnel safety.
There are highly sensitive MOS components on the printed circuit boards. These
components are especially sensitive to static electricity. Take anti-static 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 R/L1, S/L2, and T/L3 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.
1. For 230V models, the range is between 170–264V.
2. For 460V models, the range is between 323–528V.
3. For 575V models, the range is between 446–660V.
4. For 690V models, the range is between 446–759V.
Refer to the table below for short circuit rating:
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.
To Next Page
Loading...
