Emc Guide Line - gefran AFE200 4 Series Instruction Manual

5.1.2 EMC guide line

In a domestic environment, this product may cause radio inference, in which case sup-
plementary mitigation measures may be required.
Dans un environnement domestique, ce produit peut causer des interférences radio, auquel
Warning!
cas supplémentaire des mesures d'atténuation peuvent être nécessaires.
AFE are designed to operate in an industrial environment where a high level of
electromagnetic interference are to be expected. Proper installation practices
will ensure safe and trouble-free operation. If you encounter problems, follow the
Attention
guidelines which follow.
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Note!
For further information regarding electro-magnetic compatibility standards, according to Directive
2014/30/EC, conformity checks carried out on Gefran appliances, connection of filters and mains
inductors, shielding of cables, ground connections, etc., consult the "Electro-magnetic compatibility
guide" on the CD attached to this product.
Check for all equipment in the cabinet are well grounded using short, thick
grounding cable connected to a common star point or busbar. Better solution
is to use a conductive mounting plane and use that as EMC ground reference
plane.
Flat conductors, for EMC grounding, are better than other type because they
have lower impedance at higher frequencies.
Make sure that any control equipment (such as a PLC) connected to the
AFE200 is connected to the same EMC ground or star point as the AFE200
via a short thick link.
Separate the control cables from the power cables as much as possible, using
separate trunking, if necessary at 90º to each other.
Whenever possible, use screened leads for the connections to the control
circuitry.
Ensure that the contactors in the cubicle are suppressed, either with R-C
suppressors for AC contactors or 'flywheel' diodes for DC contactors fitted to
the coils. Varistor suppressors are also effective. This is important when the
contactors are controlled from the AFE200 relay.
Use screened or armored cables for the U-V-W connections and ground the
screen at both ends using the cable clamps
Use the recommended EMI filters, which are listed in section 11.3 of this
manual (conformity with EN61800-3, class C3 with 50 meters of motor cable
with a single inverter supplied by the AFE200).
Use shielded cables in motors to ensure the correct operation of the EMI filter.
AFE200 • Instruction Manual
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