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CHAPTER 1 - INTRODUCTION
1.1 Preliminary note
This manual is referred to drives (see paragraph 1.2.5) made up of brushless servomotors
SERIES 8 and of convertors SERIES BHL-D. It has been compiled by ABB Servomotors S.r.l.
and is intended to be used by its own customers, who use it under their own responsibility. No
further guarantee, besides what stated on the contract, will therefore be granted by ABB
Servomotors, in particular for possible imperfections and/or incompleteness of the text and
any liability is expressly excluded for direct or indirect damages, deriving from the use of this
documentation.
For the correct installation and start-up of the drives, made of servomotors SERIES 8
and of convertors series BHL-D, it is necessary to follow what indicated in this manual
scrupulously.
1.2 Terminology
International regulations have standardized the terminology connected to drives, their
components, accessories, performances, etc... Following are some significant definitions.
Numbers between square brackets refer to reference documents cited in paragraph 1.3.
1.2.1
EMC (Electro Magnetic Compatibility): the capability of a device, an apparatus or of a system
to
function
in
its
electromagnetic
environment
satisfactorily,
without
introducing
electromagnetic disturbances not acceptable for what is placed in that environment; in
practice, this expression includes all requirements both of emission (disturbances provoked
by the apparatus) and of immunity of the apparatus itself from envirorimental disturbances.
1.2.2
APPLIANCES: all electric and electronic devices, as well as apparatus, systems and plants
containing electric or electronic components.
1.2.3
ELECTROMAGNETIC DISTURBANCES: electromagnetic phenomena that can alter the
operation of a device, an apparatus or a system.
1.2.4
IMMUNITY: the capability of a device, an apparatus or a system to function when
electromagnetic disturbances are present without affecting its performances.
1.2.5
PDS (Power Drive System); Fig. 1-1 [4] shows the configuration of a PDS placed in an
installation. A PDS is a system which converts electric energy in mechanical energy, with the
use of power electronics devices, according to a command function (and according to a
program).
A PDS can also be represented with the block diagram of Fig. 1-2 and is mainly made up of:
MANIU04.9607 GB 03/97
Page 1.1
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