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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