This is a summary of the EMC performance of the Unidrive SP.

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):

Standard	Type of immunity	Test Specification	Application	Level
IEC61000-4-2 EN61000-4-2	Electrostatic discharge	6kV contact discharge 8kV air discharge	Module enclosure	Level 3 (industrial)
IEC61000-4-3 EN61000-4-3	Radio frequency radiated field	10V/m prior to modulation 80 - 1000MHz 80% AM (1kHz) modulation	Module enclosure	Level 3 (industrial)
IEC61000-4-4 EN61000-4-4	Fast transient burst	5/50ns 2kV transient at 5kHz repetition frequency via coupling clamp	Control lines	Level 4 (industrial harsh)
IEC61000-4-4 EN61000-4-4	Fast transient burst	5/50ns 2kV transient at 5kHz repetition frequency by direct injection	Power lines	Level 3 (industrial)
IEC61000-4-5 EN61000-4-5	Surges	Common mode 4kV 1.2/50μs waveshape	AC supply lines: line to earth	Level 4
		Differential mode 2kV 1.2/50μs waveshape	AC supply lines: line to line	Level 3
		Lines to earth	Signal ports to earth 1	Level 2
IEC61000-4-6 EN61000-4-6	Conducted radio frequency	10V prior to modulation 0.15 - 80MHz 80% AM (1kHz) modulation	Control and power lines	Level 3 (industrial)
EN50082-1 IEC61000-6-1 EN61000-6-1	Generic immunity standard for the residential, commercial and light - industrial environment			Complies
EN50082-2 IEC61000-6-2 EN61000-6-2	Generic immunity standard for the industrial environment			Complies
EN61800-3 IEC61800-3 EN61800-3	Product standard for adjustable speed power drive systems (immunity requirements)		Meets immunity requirements for first and second environments
IEC61000-4-11 EN61000-4-11	Voltage dips and interruptions	-30% 10ms +60% 100ms -60% 1s <-95% 5s	AC power ports

1 See section Surge immunity of control circuits - long cables and connections outside a building on page 41 for control ports for possible requirements regarding earthing and external surge protection

Emission

The drive contains an in-built filter for basic emission control. An additional optional external filter provides further reduction of emission. The requirements of the following standards are met, depending on the motor cable length.

Motor cable
length (m) 0 to 4 4 to 10 10 to 20 20 to 100

In-built filter E2U E2R

In-built filter and ferrite rings fitted E2U E2R

External filter R I

Key (shown in decreasing order of permitted emission level):

E2R	EN 61800-3 second environment, restricted distribution (Additional measures may be required to prevent interference)
E2U	EN 61800-3 second environment, unrestricted distribution
I	Industrial generic standard EN 50081-2 (EN 61000-6-4) EN 61800-3 first environment restricted distribution (The following caution is required by EN61800-3:)

This is a product of the restricted distribution class according to IEC61800-3. In a domestic environment this product may cause radio interference in which case the user may be required to take adequate measures.

R - Residential generic standard EN 50081-1 (EN 61000-6-3) EN 61800-3 first environment unrestricted distribution

EN61800-3 defines the following:
" The first environment is one that includes domestic premises. It also includes establishments directly connected without intermediate transformers to a low-voltage power supply network which supplies buildings used for domestic purposes.

" The second environment is one that includes all establishments other than those directly connected to a low-voltage power supply network which supplies buildings used for domestic purposes.

" Restricted distribution is defined as a mode of sales distribution in which the manufacturer restricts the supply of equipment to suppliers, customers or users who separately or jointly have technical competence in the EMC requirements of the application of drives.