Option Kits And Accessories; Option Kits; Rfi Filter - WEG CFW-11 User Manual

7 OPTION KITS AND ACCESSORIES

This chapter presents:
The option kits that can be incorporated to the
inverter from the factory:

- RFI filter.

- External 24 Vdc power supply for control and HMI.
Instructions for the proper use of the option kits.
The accessories that can be incorporated to the inverters.
Instructions for the installation, operation, and programming of the accessories are described in their own
manuals and are not present in this chapter.

7.1 OPTION KITS

Some models cannot incorporate all available option kits. Refer to
description of the option kits that are available for each inverter model.
The inverter codification is described in
7.1.1 RFI Filter
Inverters with the following codification: CFW11XXXXXXOFA. Refer to
on availability of this option kit for each inverter model.
ATTENTION!
Do not use inverters with internal RFI filters in IT networks (ungrounded neutral or grounding provided
by a high ohm value resistor) or in grounded delta networks ("delta corner earth"). These type of
installations will damage the inverter filter capacitors.
The RFI filter reduces the conducted noise of the inverter to the electrical supply system in the high frequency
range (>150 kHz).
The RFI filter is required for the compliance with conducted emissions limits established by the Electromagnetic
Compatibility standards such as EN 61800-3 and EN 55011.
For the proper operation of the RFI filter, please follow the instructions listed in
ACCORDING TO THE EUROPEAN DIRECTIVE OF ELECTROMAGNETIC COMPATIBILITY on page
chapter also provides information on the compliance of these standards, such as the maximum motor cable length.
Chapter 2 GENERAL INSTRUCTIONS on page
Option Kits and Accessories
Table 8.1 on page 8-2 for a detailed
2-1.
Table 8.1 on page 8-2 for information
Section 3.4 INSTALLATION
CFW-11 | 7-1
7
3-43. This