2
CFW-11M RB |2-1
General Instructions
2 GENERAL INSTRUCTIONS
2.1 ABOUT THE MANUAL
This manual presents how to install, to start-up, the main characteristics
and shows how to troubleshoot the most common problems of the
CFW-11M RB converter series.
For information on other functions, accessories and operation conditions
please refer to the following manuals:
ATTENTION!
The operation of this equipment requires installation instructions and detailed operation provided
in the user manual, programming manual and manuals/guides for kits and accessories. The
user manual and the parameters quick reference are supplied in a hard copy together with
the converter. The other manuals are available at
www.weg.net
. A printed copy of the files
available on WEG’s website can be requested at your local WEG dealer.
;
Programming Manual, with a detailed description of the parameters and advanced functions of the
CFW-11M RB.
;
I/O Expansion Module Manual.
2.2 TERMS AND DEFINITIONS
Regenerative Frequency Converter:
three-phase switching frequency converter “boost type” (amplifier)
that converts the AC voltage from the power supply to a DC voltage (DC Link). It has the capability of
absorbing the energy of the power supply (AC) or to recover the energy back to the power supply, being
used as a DC voltage source to supply voltage to several output inverter.
Output inverter:
frequency inverter fed by the DC link bus bar supplied by the regenerative converter. It
is responsible for the motor control.
Normal Duty Cycle (ND):
converter duty cycle that defines the maximum continuous operation current
(I
nom-ND
) and overload current conditions (110 % for 1 minute). The ND cycle is selected by setting P0298
(Application) = 0 (Normal Duty (ND)). The inverter overload conditions are reflected in the regenerative
converter.
I
nom-ND
:
converter rated current for use with the normal duty (ND) cycle.
Overload: 1.1 x I
nom-ND
/ 1 minute.
Heavy Duty Cycle (HD):
converter duty cycle that defines the maximum continuous operation current
(I
nom-HD
) and overload current conditions (150 % for 1 minute). The HD cycle is selected by setting P0298
(Application) = 1 (Heavy Duty (HD)). The inverter overload conditions are reflected in the regenerative
converter.
I
nom-HD
:
converter rated current for use with the heavy duty (HD) cycle.
Overload: 1.5 x I
nom-HD
/ 1 minute.
