Parker 650V series - Certification for the Drive; Earthing Requirements; Minimising Radiated Emissions; Requirements for EMC Compliance

Certification for the Drive 10-3
650V AC Drive
EMC Installation Options
The unit, when installed for Class A or Class B operation, will be compliant with EN55011
(1991)/ EN55022 (1994) for radiated emissions, as described below.
Screening & Earthing (wall mounted, Class A)
IMPORTANT: This unit must be fitted with the optional top cover.
The unit is installed for Class A operation when wall mounted using the recommended ac supply
filter and having complied with all cabling requirements.
Note: The installation requirements of local safety standards must be achieved regarding the
safety of electrical equipment for machines.
• A single-star point earthing policy as shown in Figure 10-2 is required.
• The protective earth connection (PE) to the motor must be run inside the screened cable
between the motor and VSD and be connected to the protective earth terminal in the gland
box, or on the VSD.
• The external ac supply filter must be permanently earthed. Refer to Chapter 9: “Technical
Specifications” - Earthing/Safety Details.
• The signal/control cables should be screened.
Note: Refer to Chapter 9: “Technical Specifications” for details on Cabling Requirements.
Screening & Earthing (cubicle mounted, Class B)
Note: The installation requirements of local safety standards must be achieved regarding the
safety of electrical equipment for machines. Refer to Chapter 3: “Installing the Drive” -
Protective Earth (PE) Connections
.
The unit is installed for Class B operation when mounted inside a cubicle having 10dB
attenuation between 30 and 100MHz (typically the attenuation provided by a metal cabinet with
no aperture of dimension greater than 0.15m), using the recommended ac supply filter and
having met all cabling requirements.
Note: Radiated magnetic and electric fields inside the cubicle will be high and any components
fitted inside must be sufficiently immune.
The VSD, external filter and associated equipment are mounted onto a conducting, metal
mounting panel. Do not use cubicle constructions that use insulating mounting panels or
undefined mounting structures. Cables between the VSD and motor must be screened or
armoured and terminated at the VSD or locally on the back panel.