Toshiba VF-AS1 instruction manual How to cope with the CE standard, EMC directive

E6581301

9.Taking measures to satisfy the CE/UL/CSA standards

9.1How 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.				9
	Table 1	(EMC standards)
Category	Subcategory	Product standards	Test standard
Emission	Radiated		CISPR11(EN55011)
	Conducted
	Electrostatic discharge		IEC61000-4-2
	Radiated, radio-frequency,		IEC61000-4-3
	electromagnetic field
	Electrical fast transient burst	IEC61800-3	IEC61000-4-4
Immunity	Surge		IEC61000-4-5
	Conducted disturbances, induced by		IEC61000-4-6
	radio-frequency field
	Voltage dips, short interruptions and		IEC61000-4-11
	voltage variations

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