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E6581301
I-1
9
9. Taking measures to satisfy the CE/UL/CSA standards
9.1 How to cope with the CE standard
In Europe, the EMC directive and the low-voltage directive, which took effect in 1996 and 1997, respectively, make it
obligatory to put the CE mark on every applicable product to prove that it complies with the directives. Inverters do
not work alone but are designed to be installed in a control panel and always used in combination with other
machines or systems which control them, so they themselves are not considered to be subject to the EMC directive.
However, the CE mark must be put on all inverters because they are subject to the low-voltage directive.
The CE mark must be put on all machines and systems with built-in inverters because such machines and systems
are subject to the above directives. It is the responsibility of the manufacturers of such final products to put the CE
mark on each one. If they are “final” products, they might also be subject to machine-related directives. It is the
responsibility of the manufacturers of such final products to put the CE mark on each one. In order to make machines
and systems with built-in inverters compliant with the EMC directive and the low-voltage directive, this section
explains how to install inverters and what measures should be taken to satisfy the EMC directive.
We have tested representative models with them installed as described later in this manual to check for conformity
with the EMC directive. However, we cannot check all inverters for conformity because whether or not they conform
to the EMC direction depends on how they are installed and connected. Applicable EMC standards vary depending
on the composition of the control panel in which the inverter is installed, the relationship with other electrical devices
installed in the control panel, wiring conditions, equipment layout, and so on, so you should check whether your
machine or system complies with EMC standards as a whole. Therefore, please verify for yourself whether your
machine or system conforms to the EMC directive.
9.1.1 EMC directive
The CE mark must be put on every final product that includes an inverter(s) and a motor(s). The VF-AS1 series of
inverters complies with the EMC directive if an EMC filter recommended by Toshiba is connected to it and wiring is
carried out correctly.
The EMC standards are broadly divided into two categories; immunity- and emission-related standards, each of
which is further categorized according to the operating environment of each individual machine. Since inverters are
intended for use with industrial systems under industrial environments, they fall within the EMC categories listed in
Table 1 below. The tests required for machines and systems as final products are almost the same as those required
for inverters.
Table 1 (EMC standards)
Category Subcategory Product standards Test standard
Emission
Radiated
IEC61800-3
CISPR11(EN55011)
Conducted
Immunity
Electrostatic discharge IEC61000-4-2
Radiated, radio-frequency,
electromagnetic field
IEC61000-4-3
Electrical fast transient burst IEC61000-4-4
Surge IEC61000-4-5
Conducted disturbances, induced by
radio-frequency field
IEC61000-4-6
Voltage dips, short interruptions and
voltage variations
IEC61000-4-11