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9-2 CE Guidelines MN1854
Using CE approved components will not guarantee a CE compliant system!
1. The components used in the drive, installation methods used, materials
selected for interconnection of components are important.
2. The installation methods, interconnection materials, shielding, filtering
and grounding of the system as a whole will determine CE compliance.
3. 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).
Baldor products which meet the EMC directive requirements are indicated with a
“CE” mark. A duly signed CE declaration of conformity is available from Baldor.
EMC Wiring Technique
1 CABINET
The drawing shows an electroplated zinc coated enclosure,
which is connected to ground.
This enclosure has the following advantages:
– All parts mounted on the back plane are connected to
ground.
– All shield (screen) connections are connected to ground.
Within the cabinet there should be a spatial separation
between power wiring (motor and AC power cables) and
control wiring.
2 SCREEN CONNECTIONS
All connections between components must use shielded
cables. The cable shields must be connected to the
enclosure. Use conductive clamps to ensure good ground
connection. With this technique, a good ground shield can
be achieved.
3 EMC – FILTER
The EMI or main filter should be mounted next to the power
supply (here BPS). For the connection to and from the main
filter screened cables should be used. The cable screens
should be connected to screen clamps on both sides.
(Exception: Analog Command Signal).
4 Grounding (Earth)
For safety reasons (VDE0160), all BALDOR components
must be connected to ground with a separate wire. The
diameter of the wire must be at minimum AWG#6 (10mm@).
Ground connections (dashed lines) must be made from the
central ground to the regen resistor enclosure and from the
central ground to the Shared Power Supply.
5 Y–CAPACITOR
The connection of the regeneration resistor can cause RFI
(radio frequency interference) to be very high. To minimize
RFI, a Y–capacitor is used. The capacitor should only be
connected between the dynamic brake resistor housing
and terminal pin R1 (lead from Flex).
Recommend: 0,1µF / 250VAC Type: PME265
BALDOR–Ordering–No.: ASR27104
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