Installation According To The European Directive Of Electromagnetic Compatibility; Conformal Installation; Standard Definitions - WEG CFW-11 Series User Manual

3.3 INSTALLATION ACCORDING TO THE EUROPEAN DIRECTIVE OF ELECTROMAGNETIC
COMPATIBILITY
The frame size F and G CFW-11 inverters have an internal RFI filter for the reduction of the electromagnetic
interference. These inverters, when properly installed, meet the requirements of the electromagnetic compatibility
directive "EMC Directive 2004/108/EC".
The CFW-11 inverter series has been designed only for industrial applications. Therefore, the emission limits
of harmonic currents defined by the standards EN 61000-3-2 and EN 61000-3-2/A14 are not applicable.

3.3.1 Conformal Installation

For the conformal installation use:
1. Shielded output cables (motor cables) with the shield connected at both ends, motor and inverter, by means
of a low impedance to high frequencies connection. Use the clamp supplied with the product, making sure
there is a good contact between the shield and that clamp. Keep the separation distance to the other cables
according to the table 3.4 indication. Refer to the section 3.2.3 for more information.
Maximum motor cable length and conduced and radiated emission levels according to the table 3.8. If a
lower conducted emission level (category C2) is wished, then an external RFI filter must be used at the inverter
input. For more information (RFI filter commercial reference, motor cable length and emission levels) refer
to the table 3.8.
2. Shielded control cables, keeping the separation distance to other cables according to the section 3.2.5
indication.
3. Inverter grounding according to the section 3.2.4 instructions.

3.3.2 Standard Definitions

IEC/EN 61800-3: "Adjustable Speed Electrical Power Drives Systems"
- Environment:
First Environment: includes domestic premises. It also includes establishments directly connected without
intermediate transformer to a low-voltage power supply network which supplies buildings used for domestic
purposes.
Example: houses, apartments, commercial installations, or offices located in residential buildings.
Second Environment: includes all establishments other than those directly connected to a low-voltage power
supply network that supplies buildings used for domestic purposes.
Example: industrial areas, technical area of any building supplied by a dedicated transformer.
- Categories:
Category C1: inverters with a voltage rating less than 1000 V and intended for use in the First Environment.
Installation and Connection
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