ABB ACS880 - Terms and Abbreviations

10 Introduction
Terms and abbreviations
Term/
abbreviation
Description Reference
ATEX Directives 2014/34/EU and 1999/92/EC refers to the ATEX
directives (from “ATmosphères EXplosibles”).
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, replaced with Ex eb EN 60079-7:2007 and
IEC 60079-7:2006
Ex eb, Ex ec Types of protection, increased safety EN/IEC 60079-7:2015
Ex motors Motors used in explosive atmospheres -
Ex nA Type of protection, non-sparking enclosures, replaced with
Ex ec
EN/IEC 60079-15:2010
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
-
HFT Hardware fault tolerance IEC 61508
PFH Probability of dangerous failures per hour IEC 61508
PFD Probability of failure on demand IEC 61508
Pt100 Platinum resistance temperature detector, platinum
resistance thermometer.
-
PTC Positive temperature coefficient; PTC thermistor, PTC
resistor temperature sensor.
-
SAR Safe acceleration range. In the FSO module, there are two
sets of SAR parameters (SAR0 and SAR1) that are used to
define and/or monitor the deceleration ramp in safety
functions. SAR0 parameters are used in the SSE function.
SAR1 parameters are used in the SS1 function.
-
SBC Safe brake control. A safety function in the FSO module. -
SFF Safe failure fraction (%) IEC 61508
SIL Safety integrity level IEC 61508
SS1 Safe stop 1. A safety function in the FSO module. EN/IEC 61800-5-2
SSE Safe stop emergency. A safety function in the FSO module.