2 measures to satisfy the emc directive – Toshiba VF-S11 User Manual
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Table 1 EMC standards
Category
Subcategory
Product
standards
Test standard and level
Radiation noise
EN55011 Class A Group 1
Emission
Transmission noise
EN55011 Class A Group 1
Static discharge
IEC61000-4-2
Radioactive radio-frequency
magnetic contactor field
IEC61000-4-3
First transient burst
IEC61000-4-4
Lightning surge
IEC61000-4-5
Radio-frequency
induction/transmission interference
IEC61000-4-6
Immunity
Voltage dip/Interruption of power
IEC 61800-3
IEC61000-4-11
Emission standards other than the above are applied to inverters when used in a commercial environment but not
an industrial environment.
Category
Subcategory
Product
standards
Test standard and level
Radiation noise
EN55011 Class B Group 1
Emission
Transmission noise
IEC 61800-3
EN55011 Class B Group 1
6.1.2 Measures to satisfy the EMC directive
This subsection explains what measures must be taken to satisfy the EMC directive.
(1)
Insert a recommended EMI filter (Table 2) on the input side of the inverter to reduce and transmission noise
and radiation noise from input cables.
In the combinations listed in Table 2, Inverters are tested in these combination to see if they comply with
transmission noise standards. For inverters used in Japan, it is recommended to use the NF series of noise
filters.
Table 2 lists noise filters recommended for the inverters.
Table 2 Combinations of inverter and EMI filter
Three-phase 240V class
Combination of inverter and filter
Inverter
Transmission noise
EN55011 Class A Group 1
Applicable filters
(Length of motor connecting cable:
Max. 5 m)
Transmission noise
EN55011 Class B Group 1
Applicable filters
(Length of motor connecting cable:
Max. 1 m)
VFS11-2002PM
EMFS11-2007AZ
VFS11-2004PM
EMFS11-2007AZ
VFS11-2005PM
EMFS11-2007AZ
VFS11-2007PM
EMFS11-2007AZ
VFS11-2015PM
EMFS11-4015BZ
VFS11-2022PM
EMFS11-4015BZ
VFS11-2037PM
EMFS11-4025CZ
VFS11-2055PM
EMFS11-4047DZ
VFS11-2075PM
EMFS11-4047DZ
VFS11-2110PM
EMFS11-2083EZ
VFS11-2150PM
EMFS11-2083EZ