General Instructions; About The Manual; About The Cfw701 - WEG CFW701 Manual Del Usuario

2 GENERAL INSTRUCTIONS

2.1 ABOUT THE MANUAL

The purpose of this manual is to provide the basic information needed to install, start-up in
the V/f control mode (scalar), and troubleshoot the most common problems of the CFW701
frequency inverter series.
ATTENTION!
The operation of this equipment requires installation instructions and
detailed operation provided in the user's manual, programming manual and
communication manuals. The user's manual and the parameters quick reference
are supplied in a hard copy together with the inverter. The user guides are
also provided in a hard copy along with the accessories. The other manuals
are included on the CD supplied with the inverter or can be downloaded from
the WEG website at - www.weg.net. The CD should always be kept with the
equipment. A printed copy of the files available on the CD can be ordered
through your local WEG representative.
Some of the figures and tables are available in the appendixes. The
FIGURES on page 138 shows the figures and the
on page 148 shows the technical specifications. The information is available in three languages.
Please refer to the following technical manuals for further information:
CFW701 Programming Manual.
„
Modbus Communication Manual.
„
BACnet Communication Manual.
„

2.2 ABOUT THE CFW701

The CFW701 frequency inverter is a high performance product designed for speed and torque
control of threephase induction motors. The main characteristic of this product is the "Vectrue"
technology, which has the following advantages:
Scalar control (V/f), V V W, or vector control programmable in the same product.
„
The vector control may be programmed as "sensorless" (which means standard motors
„
without using encoders).
The "sensorless" control allows high torque and fast response, even in very low speeds or at
„
the starting.
"Optimal Braking" function for the vector control, allowing the controlled braking of the motor
„
and avoiding external braking resistor for some applications.
"Self-Tuning" feature for vector control. It allows the automatic adjustment of the regulators
„
and control parameters from the identification (also automatic) of the motor parameters and
load.
The main components of the CFW701 can be viewed in
APPENDIX A - DIAGRAMS AND
APPENDIX B - TECHNICAL SPECIFICATIONS
Figure A.1 on page
General Instructions
138.
CFW701 | 3