ABB ACS880-17 - Terms and Abbreviations

12 Introduction to the manual
Terms and abbreviations
The abbreviations used in this manual are listed below.
Term /
abbreviation
Description Reference
ATEX Directives 2014/34/EU (94/9/EC) and 1999/92/EC are
commonly referred to as the ATEX directives (from
“Atmosphères Explosibles”)
-
BCU Type of drive control unit used in ACS880 drives -
CM-MSS.41 ABB thermistor motor protection relay -
Ex An IEC term used in the context of explosive atmospheres IEC 60079 series
Ex d Type of protection, flameproof enclosures EN/IEC 60079-1
Ex e Type of protection, increased safety, to be replaced with
Ex eb
EN 60079-7:2007 and
IEC 60079-7:2006
Ex eb, Ex ec Types of protection, increased safety IEC 60079-7:2015
Ex i Intrinsically safe EN 60079-11:2012 and
IEC 60079-11:2011
Ex motors Motors used in explosive atmospheres -
Ex nA Type of protection, non-sparking enclosures, to be replaced
with Ex ec
EN/IEC 60079-15:2010
Frame (size) Relates to the construction type of the drive in question. For
example, several drive types with different power ratings can
have the same basic construction, and a frame size is used in
reference to all those drive types.
With the ACS880-07 (smaller), the frame size marking of the
drive indicates the physical size of the drive, eg, R6.
With the ACS880-07 (larger), the frame size marking of the
drive indicates the quantity and frame size of the diode supply
modules plus the quantity and frame size of the inverter
modules, eg, “2×D8T +3×R8i”.
With the ACS880-17 and ACS880-37, the frame size marking
of the drive indicates the quantity and frame size of the IGBT
supply modules plus the quantity and frame size of the
inverter modules, eg, “2×R8i +3×R8i”.
-
FSE-31 Pulse encoder interface module which can be used in safety
applications
-
FSO Safety functions module (FSO-12 or FSO-21) -
FSO-12 Safety functions module which does not support the use of
safety encoders
-
FSO-21 Safety functions module which supports the FSE-31 module
and the use of safety encoders
-
FIT Failure in time: 1E-9 hours IEC 61508
HFT Hardware fault tolerance IEC 61508
PFD Probability of dangerous failures on demand IEC 61508
PLC Programmable logic controller -
00 ACS880 ATEX cabinet.book Page 12 Tuesday, May 28, 2019 10:25 AM