WEG CFW320, Руководство пользователя

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GENERAL INFORMATION
2 GENERAL INFORMATION
2.1 ABOUT THE MANUAL
This manual contains information for the proper installation and operation of the inverter, comissioning, main
technical features and how to identify the most usual problems if the different models of inverters of the CFW320
line.
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ATTENTION!
The operation of this equipment requires detailed installation and operation instructions provided in
the quick installation guide, user’s manual, programming manual and communication manuals. The
guides are provided in print with their respective accessory, or can be obtained at WEG website -
www.weg.net . A printed copy of the files can be requested at your local WEG dealer.
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NOTE!
It is not the intention of this manual to present all the possibilities for the application of the CFW320,
as well as WEG cannot take any liability for the use of the CFW320 which is not based on this manual.
Part of the figures and tables are available in the annexes, which are divided into APPENDIX A - FIGURES on page
34 for figures and APPENDIX B - TECHNICAL SPECIFICATIONS on page 45 for technical specifications.
For further information, refer to the programming manual.
2.2 ABOUT THE CFW320
The CFW320 frequency inverter is a high-performance product which allows speed and torque control of three-
phase induction motors. This product provides the user with the options of vector (VVW) or scalar (V/f) control,
both programmable according to the application.
In the vector mode (VVW), the operation is optimized for the motor in use, obtaining a better performance in terms
of speed regulation.
The scalar mode (V/f) is recommended for simpler applications, such as the activation of most pumps and fans.
In such cases it is possible to reduce the losses in the motor and the inverter using the “V/f Quadratic”, which
results in energy savings. The V/f mode is used when more than a motor is activated by an inverter simultaneously
(multimotor applications).
The frequency inverter CFW320 also has functions of PLC (Programmable Logic Controller) by means of the
SoftPLC (integrated) feature.
The main components of the CFW320 can be viewed in the blocks diagrams of Figure 2.1 on page 5 , for frame
size A 220 V, Figure 2.2 on page 6 for frame size A 110V, Figure 2.3 on page 7 for frame size B 220V, Figure 2.4
on page 8 for frame size A 380-480V and Figure 2.5 on page 9 for frame sizes B and C 380-480V.
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