LENZE
RFI filter
RFI filters are used to observe EMC requirements as stated in
European standard EN 61800-3. This lays down EMC require-
ments for electric drive systems in various categories.
Category C1
applies in public networks (residential areas). In
terms of limit values, category C1 corresponds to class B as
laid down in EN 55011.
Category C2
applies in industrial premises, but also in residen-
tial areas if deemed appropriate by the user. In terms of limit
values, category C2 corresponds to class A as laid down in EN
55011.
RFI filter
Three different filter types are available:
The 8200 vector with integrated RFI measures satisfies the
standard EMC requirements. In the event of more stringent
ƒ
LL (Low Leakage) RFI filter with a discharge current
< 3.5mA over 5m of shielded motor cable allows for in-
stallation in portable systems
requirementsofthenoiseemission,whichcannotbeachieved
with the RFI measures integrated in the inverter, external fil-
ters can be used in the power range of up to 11kW.
(category C1 with 5m of shielded motor cable).
ƒ
SD (Short Distance) RFI filter with low discharge current,
e.g. for operation on a 30mA earth-leakage circuit-breaker
ƒ
Important: only use RFI filters in combination with 8200
vector without integrated filters! (E82EV
☐☐☐
K
☐
C200)
with 10m of shielded motor cable (guide value) (category
C1 with 20m of shielded motor cable, category C2 with
20m of shielded motor cable)
ƒ
The motor cable lengths stated are maximum values and
depend on the inverter type and switching frequency.
ƒ
LD (Long Distance) RFI filter for operation with long motor
cables
(category C1 with 50m of shielded motor cable, category
C2 with 50m of shielded motor cable).
The LD RFI filter and motor filter combination ensures
compliancewithcategoryC1with100mofshieldedmotor
cable.
Data sheet on RFI filters
DS_ZB_EZF_0001
Available for download at
49
†
Frequency inverter en 02/2009
8200 vector frequency inverter
Accessories