Specications are subject to change without notice. Pictures are just an example. For special features and/or customization, please ask to our sales network. 13/12/2017 3
Motor Controllers AC Variable Frequency Drives Type VariFlex
3
RVLF
0 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 ve 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 inverter 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.
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