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CHAPTER 1 - INTRODUCTION
Fig. 1-2
- a CDM (Complete Drive Module), which includes the complete PDS except motor and
sensors assembled on the motor; in particular, it includes a BDM (Basic Drive Module) and its
possible extensions such as the supply section or some accessories (e.g. ventilation). The
BDM includes all functions of conversion, control and self-protection. In practice, the CDM is
normally called CONVERTOR.
- Motors and Sensors.
1.2.6
APPARATUS: final product with an intrinsic function for the end user, destined to be put on
the market as a single commercial unit.
1.2.7
SYSTEM: union of several apparatus combined so as to obtain a specific aim and destined to
be put on the market as a single commercial unit
1.2.8
INSTALLATION: union made up of several apparatus and/or systems combined together so
as to obtain a specific aim but not destined to be put on the market as a single commercial
unit.
1.2.9
COMPONENT: element used for the realization of an apparatus, but that cannot be regarded
as an apparatus itself, since it has no intrinsic function for the end user.
Simple components are not subjected to EMC Directive.
1.2.10
UNRESTRICTED DISTRIBUTION [4]: way of commercializing where the supply of apparatus
does not depend on the competence of the customer or of the user in relation to EMC for the
application of PDS's. This means restrictive limits of emission in view of the essential
requirements of EMC protection.
1.2.11
RESTRICTED DISTRIBUTION [4]: way of commercializing where the manufacturer limit the
supply of apparatus to suppliers, customers or users that, separately or as a group, are
MANIU04.9607 GB 03/97
Page 1.3
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