Yaskawa DR2 Sigma Servo - Manual (Page 429)

7.1 What is European Safe Standard?
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7.1.3 EMC Directive
1) This is one of EC directives related to safe requirements for industrial products. EMC
directive is concerned with electro−magnetic interference (magnetic noise) mainly from
electronic devices, and specify two measures; whether a product controls generating
electro−magnetic interference down to a level where it does not affect other devices
(generating side) and whether any measures are provided to prevent an electronic de-
vice receiving electro−magnetic interference from malfunctioning (receiving side).
If a product is considered in the above two aspects of the generating side and the receiv-
ing side of electro−magnetic interference and provided with proper measures, the prod-
uct can be said to “coexist with electro−magnetic environment”, which means that the
product satisfies EMC requirements.
2) EMC is an abbreviation of Electro−Magnetic Compatibility, indicating electro−magnetic
compatibility of a product.
The following diagram outlines the contents explained in 1).
EMI Measures EMI Measures
To Coexist
EMC Measures
In the above diagram:
EMI: Electro−Magnetic Interference (generating side)
EMS: Electro−Magnetic Susceptibility (receiving side)
Machines are to be tested according to their operating status.
7.1.4 Certification Body TÜV Authorized by EU
1) TÜV is one of the certification bodies authorized by European Union (EU) specified orga-
nization, which is a German “technical inspection association”.
TÜV has an office (TÜV Product Service, etc.) in Japan, through which Yaskawa obtains
approvals.
DR2 Servopack has been approved by this TÜV.
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