Electromagnetic compatibility (EMC)
conducted emission
This is a summary of the EMC performance of the
Drive. For full details, refer to the Unidrive EMC Data
Sheet which can be obtained from a Drive Centre or
distributor listed on the back cover.
Immunity
Compliance with immunity standards does not
depend on installation details. The Drive meets
EN50082–2 (generic immunity standard for the
industrial environment) and the following specifications
from the IEC1000–4 group (derived from IEC801):
Part 2, Electrostatic discharge: Level 3
Part 3, Radio frequency field: Level 3
Part 4, Transient burst: Level 4 at the control
terminals
Part 4 Transient burst:
Level 4 at the control terminals
Level 3 at the power terminals
Part 5, Surge (at the AC supply terminals):
Level 4 line-to-ground
Level 3 line-to-line (as specified by
EN50082–2 informative annex)
Part 6, Conducted radio frequency:
Level 3
Emission
Compliance with emission standards depends on
rigorous adherence to the installation guidelines,
including the use of the specified RFI filter in the AC
supply circuit. Compliance also depends on the PWM
switching frequency used in the output stage of the
Drive, and the length of the motor cable. For full
details, refer to the Unidrive EMC Data Sheet which
can be obtained from a Drive Centre or distributor
listed at the end of this Product Data Guide.
electro magnetic compatibility (EMC)
& radio frequency interference (RFI)
24
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