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Category
Emission
Immunity
9.1.2
This subsection explains what measures must be taken to satisfy the EMC directive.
(1) The single-phase 240 V class is equipped with an EMI filter.
Single-phase 240 V class
VFNC3S-2001PL
VFNC3S-2002PL
VFNC3S-2004PL
9
VFNC3S-2007PL
VFNC3S-2015PL
VFNC3S-2022PL
(2)
Use shielded power cables, such as inverter output cables, and shielded control cables. Route the cables
and wires so as to minimize their lengths. Keep a distance between the power cable and the control cable
and between the input and output wires of the power cable. Do not route them in parallel or bind them
together, instead cross at right angle.
(3)
It is more effective in limiting the radiation noise to install the inverter in a sealed steel cabinet. Using wires
as thick and short as possible, earth the metal plate and the control panel securely with a distance kept
between the earth cable and the power cable.
(4)
Route the input and output wires apart from each other.
(5)
To suppress radiation noise from cables, ground all shielded cables through a noise cut plate.
It is effective to earth shielded cables in the vicinity of the inverter and cabinet (within a radius of 10cm from
each of them). Inserting a ferrite core in a shielded cable is even more effective in limiting the radiation
noise.
(6)
To further limit the radiation noise, insert a zero-phase reactor in the inverter output line and insert ferrite
cores in the earth cables of the metal plate and cabinet.
(7)
Consult us about the three-phase 240 V and single-phase 120 V classes.
Subcategory
Radiation noise
Transmission noise
Static discharge
Radioactive radio-frequency
magnetic contactor field
First transient burst
Lightning surge
Radio-frequency
induction/transmission interference
Voltage dip/Interruption of power
Measures to satisfy the EMC directive
Table 2 Inverters and EMI filters
Transmission noise IEC61800-3,
Inverter type
category C1 applicable filters
(motor wiring length of less than 5 m)
Table 1 EMC standards
Product
standards
IEC 61800-3
Inverter and filter combinations
Built-in filter
I-2
E6581595
Test standard
CISPR11(EN55011)
CISPR11(EN55011)
IEC61000-4-2
IEC61000-4-3
IEC61000-4-4
IEC61000-4-5
IEC61000-4-6
IEC61000-4-11
Transmission noise IEC61800-3,
category C2 applicable filters
(motor wiring length of less than 10 m)
Built-in filter
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