0-1 
Chapter 0 Preface 
0.1 Preface 
To extend the performance of the product and ensure personnel safety, please read 
this manual thoroughly before using the inverter. Should there be any problem in 
using the product that cannot be solved with the information provided in the manual, 
contact our technical or sales representative who will be willing to help you.   
※Precautions 
The inverter is an electrical product. For your safety, there are symbols such as 
“Danger”, “Caution” in this manual as a reminder to pay attention to safety   
instructions on handling, installing, operating, and checking the inverter. Be sure to 
follow the instructions for highest safety. 
 
 
Danger 
Indicates a potential hazard that could cause death or serious   
personal injury if misused. 
 
 
Caution 
Indicates that the inverter or the mechanical system might be damaged 
if misused. 
 
  Danger 
  Risk of electric shock. The DC link capacitors remain charged for five 
minutes after power has been removed. It is not permissible to open the 
equipment until 5 minutes after the power has been removed. 
  Do not make any connections when the inverter is powered on. Do not check 
parts and signals on circuit boards during the inverter operation. 
  Do not disassemble the inverter or modify any internal wires, circuits, or 
parts. 
  Ensure that the Inveter Ground terminal is connected correctly. 
 
 
Caution 
  Do not perform a voltage test on parts inside the inverter. High voltage can 
destroy the semiconductor components. 
  Do not connect T1, T2, and T3 terminals of the inverter to any AC input   
power supply. 
 
CMOS ICs on the inverter’s main board are susceptible to static electricity. Do 
not touch the main circuit board.