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

Installation and Connection
3.4 INSTALLATION ACCORDING TO THE EUROPEAN DIRECTIVE OF ELECTROMAGNETIC
COMPATIBILITY
The inverters CFW11...T5... and CFW11...T6... (except the ones with NF option - CFW11...O...NF...) have
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.
ATTENTION!
For using models with internal RFI filters in IT networks follow the instructions on
Networks on page
3

3.4.1 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 clamps 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
Refer to the
Maximum motor cable length and conduced and radiated emission levels according to the
page 3-64.
If a lower conducted emission level category 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 3.20 on page
2. Shielded control cables, keeping the separation distance to other cables according to the
Connections on page
3. Inverter grounding according to the
3-62 | CFW-11
3-35.
Item 3.2.3 Power Connections on page
3-65.
3-45.
Item 3.2.4 Grounding Connections on page
Table 3.11 on page 3-43
3-31, for more information.
Item 3.2.3.1.2 IT
indication.
Table 3.19 on
Item 3.2.5 Control
3-44.