Quick Start           
  Copyright © ITECH Electronics Co., Ltd.  9 
 
 9-Pin COM port interface connector 
 4-Pin Trigger and Remote sensing connectors 
 Power socket 
 Power switch (110V / 220V)   
  Cooling window 
 
2.5 Power-on Selftest 
A successful selftest indicates that the purchased power product meets delivery 
standards and is available for normal usage. 
Before operation, please confirm that you  have fully understood the safety 
instructions. 
 
 
  To avoid burning out, be sure to confirm that power voltage matches with 
supply voltage. 
  Be sure to connect the main power socket to the power outlet of protective 
grounding. Do not use terminal board without protective grounding. Before 
operation, be sure that the power supply is well grounded. 
  To avoid burning out, pay attention to marks of positive and negative polarities 
before wiring. 
Selftest steps 
Normal selftest procedures: 
1.  Correctly connect the power cord. Press Power key to start up. 
2. 
After selftest, VFD display the output voltage and current status as below: 
 
 
 
0.000V    0.00000A OFF