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Introduction to the manual 23
Risk
Combination of the probability of occurrence of harm and the severity of
that harm
Safe state
STO activated. The STO circuit in the drive is open.
Note
: When the
drive STO is activated in the POUS function, the FSO is in the
Operational state. See also section
on page
Safety fieldbus
Communication system used in safety-related applications. In the safety
system described in this manual, safe communication is secured with
the PROFIsafe application layer. See also term
on page
Safety function
Function, with a specified safety performance, which is intended to
maintain the safe condition of the installation or prevent hazardous
conditions arising at the installation. Example: Safe torque off (STO)
Safety function
response time
(SFRT)
Worst case elapsed time following an actuation of a safety sensor
connected to a fieldbus before the corresponding safe state of its safety
actuator(s) is achieved in the presence of errors or failures in the safety
function channel.
Response time of the combination of the drive and the FSO. See also
term
on page
.
Safety module
Part of a safety system, physical entity. Example: FSO safety functions
module.
Safety related
control function
(SRCF)
Control function implemented by a SRECS with a specified integrity
level that is intended to maintain the safe condition of the machine or
prevent an immediate increase of the risk(s)
Safety related
electrical control
system (SRECS)
Electrical control system of a machine whose failure can result in an
immediate increase of the risk(s)
Safety system
Whole safety system including for example human interface, FSO
safety functions module, drive, sensors and machine.
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 and SLS
functions.
SBC
Safe brake control
SC
Systematic capability (IEC 61508)
Scaling speed
A user-defined reference value the FSO module uses as a reference
point in ramp time calculations. See parameter
on page
SELV
Safety extra-low voltage
SFF
Safe failure fraction (%) (IEC 61508)
SFRT
Safety function response time (see page
SIL
Safety integrity level (1-3) (IEC 61508)
SILCL
SIL claim limit. Maximum SIL that can be claimed for a safety function or
subsystem (EN 62061)
Term /
Abbreviation
Description
Содержание FSO-12
Страница 1: ... OPTIONS FOR ABB DRIVES FSO 12 safety functions module User s manual ...
Страница 4: ......
Страница 12: ...12 Table of contents ...
Страница 26: ...26 Introduction to the manual The PROFIsafe certificate for the FSO 12 module is attached below ...
Страница 36: ...36 Safety information and considerations ...
Страница 136: ...136 Safety functions ...
Страница 196: ...196 PROFIsafe 5 To read the diagnostic messages select the I O Device Diagnostics tab ...
Страница 200: ...200 PROFIsafe ...
Страница 326: ...326 Start up ...
Страница 386: ...386 Dimension drawings ...