English
GENERAL INFORMATION
2 GENERAL INFORMATION
2.1 ABOUT THE MANUAL
This manual contains information for the proper installation and operation of the inverter, as well as start-up
procedures, main technical features and how to identify the most usual problems of the different models of
inverters of the line CFW900.
!
WARNING!
The operation of this device requires detailed installation and operation instructions, which are
provided in the quick installation guide, user manual, programming manual and communication
manuals. The guides are supplied printed together with their respective accessory, or you can
download them on WEG website -
www.weg.net
. A printed copy of the files available on WEG’s
website can be requested at your local WEG dealer.
✓
NOTE!
It is not the intention of this manual to present all the possibilities for the application of the CFW900,
as well as WEG cannot take any liability for the use of the CFW900 which is not based on this manual.
For more information about other functions, accessories and communication, refer to the following manuals:
CFW900 Programming Manual;
CFW900 - ENC encoder accessory;
Analog input and output accessories - CFW900-IOAI;
Digital inputs and outputs accessories - CFW900-IOD;
Relay accessories - CFW900-REL;
Temperature measurement accessory - CFW900-TEMP;
Communication accessory - CFW900-CCAN;
2.2 TERMS AND DEFINITIONS
°C:
Celsius degree.
°F:
Fahrenheit degree.
A
: Ampères.
DC Link:
inverter intermediate circuit that contains the DC voltage obtained by the rectification of the AC power
supply line or by an external source. It supplies the output inverter bridge with IGBTs.
U, V, W Arms:
set of two IGBTs of the inverter output phases U, V, and W.
AC:
alternated current.
DC:
direct current.
CFM:
Cubic Feet per Minute; unit of flow.
Pre-charge Circuit:
charges the DC link capacitors with limited current, preventing damages to the equipment at
power-up.
PLC:
Programmable Logic Controller.
cm:
centimeter.
CV:
Cavalo-Vapor (Brazilian unit of measurement of power), corresponding to 736 watts.
CFW900 | 3
Summary of Contents for CFW900
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