C.3 Emc Installation Options - Baldor VS1GV21-1B Installation & Operating Manual

C.3 EMC Installation Options

When installed for Class A or Class B operation, the control is compliant with EN55011 (1991)/ EN55022 (1994) for radiated
emissions as described.
C.4 Grounding for Wall Mounting (Class A)
Top cover must be installed.
• A single-star point (earth) is required.
• The protective earth connection (PE) to the motor must be run inside the screened cable or conduit between the motor
and control and be connected to the protective earth terminal at the control.
• The internal/external AC supply filter must be permanently earthed.
• The signal/control cables must be screened.
C.5 Grounding for Enclosure Mounting (Class B)
• The unit is installed for Class B operation when mounted inside an enclosure that has 10dB attenuation from 30
to 100MHz (typically the attenuation provided by a metal cabinet with no opening greater than 0.15m), using the
recommended AC supply filter and having met all cable requirements.
Note: Radiated magnetic and electric fields inside the cubicle will be high and components installed inside must be
sufficiently immune.
• The control, external filter and associated equipment are mounted onto a conducting, metal panel. Do not use enclosures
that use insulating mounting panels or undefined mounting structures. Cables between the control and motor must be
screened or in conduit and terminated at the control.
C.6 Use of CE Compliant Components
The following points should be considered:
• Using CE approved components will not guarantee a CE compliant system!
• The components used in the drive, installation methods used, materials selected for interconnection of components are
important.
• The installation methods, interconnection materials, shielding, filtering and earthing / grounding of the system as a whole
will determine CE compliance.
• The responsibility of CE mark compliance rests entirely with the party who offers the end system for sale (such as an OEM
or system integrator).
C-2 CE Guidelines
also see Chapter 4
also see Chapter 4
MN765