Vaidnor VDF650 Series, User Manual

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EMC VDF650 User Manual
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248
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Chapter 7 EMC
7
.
1 Defnition of Terms
1
)
EMC
Electromagnetic compatibility
(
EMC
)
describes the ability of electronic and electrical
devices or systems to work properly in the electromagnetic environment and not to
generate electromagnetic interference that infuences other local devices or systems
.
In other words
,
EMC includes two aspects
:
The electromagnetic interference generated
by a device or system must be restricted within a certain limit
;
the device or system
must have suffcient immunity to the electromagnetic interference in the environment
.
2
)
First environment
Environment 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
3
)
Second environment
Environment that includes all establishments other than those directly connected to a
low
-
voltage power supply network which supplies buildings used for domestic purposes
4
)
Category C1 AC drive
Power Drive System
(
PDS
)
of rated voltage less than 1 000 V
,
intended for use in the
frst environment
5
)
Category C2 AC drive
PDS of rated voltage less than 1 000 V
,
which is neither a plug in device nor a movable
device and
,
when used in the first environment
,
is intended to be installed and
commissioned only by a professional
6
)
Category C3 AC drive
PDS of rated voltage less than 1 000 V
,
intended for use in the second environment
and not intended for use in the frst environment
7
)
Category C4 AC drive
PDS of rated voltage equal to or above 1 000 V
,
or rated current equal to or above 400
A
,
or intended for use in complex systems in the second environment
7
.
2 Introduction to EMC Standard
7
.
2
.
1 EMC Standard
The VDF650 series AC drive satisfies the requirements of standard EN 61800
-
3
:
2004
Category C2
.
The AC drives are applied to both the first environment and the second
environment
.