244
Unidrive M702 User Guide
Issue Number: 3
12.1.26 Electromagnetic compatibility (EMC)
This is a summary of the EMC performance of the drive. For full details,
refer to the
EMC Data Sheet
which can be obtained from the supplier of
the drive.
Table 12-34 Immunity compliance
1
Surge immunity of control circuits - long cables and
connections outside a building
on page 76 for control ports for possible
requirements regarding grounding 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 and switching frequency.
Table 12-35 Size 3 emission compliance (200 V drives)
Table 12-36 Size 3 emission compliance (400 V drives)
Key
(shown in decreasing order of permitted emission level):
E2R
EN 61800-3:2004 second environment, restricted distribution
(Additional measures may be required to prevent interference)
E2U
EN 61800-3:2004 second environment, unrestricted distribution
I
Industrial generic standard EN 61000-6-4:2007
EN 61800-3:2004 first environment restricted distribution (The
following caution is required by EN 61800-3:2004)
R
Residential generic standard EN 61000-6-3:2007
EN 61800-3:2004 first environment unrestricted distribution
EN 61800-3:2004 defines the following:
•
The first environment is one that includes residential premises. It
also includes establishments directly connected without intermediate
transformers to a low-voltage power supply network which supplies
buildings used for residential 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 residential 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.
IEC 61800-3:2004 and EN 61800-3:2004
The 2004 revision of the standard uses different terminology to align the
requirements of the standard better with the EC EMC Directive.
Power drive systems are categorized C1 to C4:
Note that category 4 is more restrictive than E2R, since the rated current
of the PDS must exceed 400 A or the supply voltage exceed 1000 V, for
the complete PDS.
Standard
Type of
immunity
Test specification
Application
Level
IEC61000-4-2
EN61000-4-2
Electrostatic
discharge
6 kV contact
discharge
8 kV air discharge
Module
enclosure
Level 3
(industrial)
IEC61000-4-3
EN61000-4-3
Radio
frequency
radiated field
10 V/m prior to
modulation
80 - 1000 MHz
80 % AM (1 kHz)
modulation
Module
enclosure
Level 3
(industrial)
IEC61000-4-4
EN61000-4-4
Fast transient
burst
5/50 ns 2 kV
transient at 5 kHz
repetition frequency
via coupling clamp
Control lines
Level 4
(industrial
harsh)
5/50 ns 2 kV
transient at 5 kHz
repetition frequency
by direct injection
Power lines
Level 3
(industrial)
IEC61000-4-5
EN61000-4-5
Surges
Common mode 4 kV
1.2/50
μ
s
waveshape
AC supply
lines:
line to ground
Level 4
Differential mode
2 kV
1.2/50
μ
s
waveshape
AC supply
lines:
line to line
Level 3
Lines to ground
Signal ports
to ground
1
Level 2
IEC61000-4-6
EN61000-4-6
Conducted
radio
frequency
10V prior to
modulation
0.15 - 80 MHz
80 % AM (1 kHz)
modulation
Control and
power lines
Level 3
(industrial)
IEC61000-4-11
EN61000-4-11
Voltage dips
and
interruptions
-30 % 10 ms
+60 % 100 ms
-60 % 1 s
<-95 % 5 s
AC power
ports
IEC61000-6-1
EN61000-6-
1:2007
Generic immunity standard for the
residential, commercial and light -
industrial environment
Complies
IEC61000-6-2
EN61000-6-
2:2005
Generic immunity standard for the
industrial environment
Complies
IEC61800-3
EN61800-
3:2004
Product standard for adjustable
speed power drive systems
(immunity requirements)
Meets immunity
requirements for first and
second environments
Motor cable
length (m)
Switching frequency (kHz)
3
4
6
8
12
16
Using internal filter:
0 – 2
C3
C4
Using internal filter and external ferrite ring (1 turn):
0 – 10
C3
C4
10 - 20
C3
C4
Using external filter:
0 – 20
R
I
I
I
I
I
20 - 100
I
-
-
-
-
-
Motor cable
length (m)
Switching frequency (kHz)
3
4
6
8
12
16
Using internal filter:
0 – 5
C3
C4
Using internal filter and external ferrite ring (2 turns):
0 – 10
C3
C4
Using external filter:
0 – 20
R
I
I
I
I
I
20 - 100
I
-
-
-
-
-
This is a product of the restricted distribution class according
to IEC 61800-3. In a residential environment this product may
cause radio interference in which case the user may be
required to take adequate measures.
Category
Definition
Corresponding
code used
above
C1
Intended for use in the first or second
environments
R
C2
Not a plug-in or movable device, and
intended for use in the first environment
only when installed by a professional, or
in the second environment
I
C3
Intended for use in the second
environment, not the first environment
E2U
C4
Rated at over 1000 V or over 400 A,
intended for use in complex systems in
the second environment
E2R
CAUTION
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