Terms And Abbreviations - ABB ACS880-07 User Manual

16 Introduction to the manual

Terms and abbreviations

Term
Cat.
CCF
D8T
DC
DIIL
E-stop
Frame, frame size
FSE-31
FSO-12, FSO-21
HFT
IGBT
Inverter unit
modoff
NC
PL
POUS
SAR
SBC
SC
SIL
SILCL
SLS
SS1
SSE
STO
Stop category
Supply unit
T
1
TP
Description
Classification of the safety-related parts of a control system in respect of their resistance
to faults and their subsequent behavior in the fault condition, and which is achieved
by the structural arrangement of the parts, fault detection and/or by their reliability.
The categories are: B, 1, 2, 3 and 4. (EN ISO 13849-1)
Common cause failure (%) (EN ISO 13849-1)
Frame size designation of the diode supply module
Diagnostic coverage (EN ISO 13849-1)
Digital input interlock
Emergency stop
Physical size of the drive or power module
Optional pulse encoder interface module for safety encoder
Optional functional safety modules
Hardware fault tolerance (IEC 61508)
Insulated gate bipolar transistor
Inverter module(s) under control of one control unit, and related components. One
inverter unit typically controls one motor.
No modulation
Normally closed
Performance level. Levels a...e correspond to SIL (EN ISO 13849-1)
Prevention of unexpected start-up
Safe acceleration range
Safe brake control
Systematic capability (IEC 61508)
Safety integrity level (1...3) (IEC 61508)
Maximum SIL (level 1...3) that can be claimed for a safety function or subsystem
(IEC/EN 62061)
Safely-limited speed
Safe stop 1 (IEC/EN 61800-5-2)
Safe stop emergency
Safe torque off (IEC/EN 61800-5-2)
There are three categories of stop functions defined by IEC/EN 60204-1:
• stop category 0: an uncontrolled stop where power to the machine actuators is re-
moved immediately (for example, STO)
• stop category 1: a controlled stop where the machine actuators have power for
stopping, after which the power is removed (SS1)
• stop category 2: a controlled stop where the machine actuators continue to have
power (SS2).
Supply module(s) under control of one control unit, and related components.
Proof test interval. Defines the probabilistic failure rate (PFH or PFD
function or subsystem. Performing a proof test at a maximum interval of T
to keep the SIL capability valid. The same interval must be followed to keep the PL
capability (EN ISO 13849) valid. Note that any T
as a guarantee or warranty.
Test pulse
) for the safety
avg
1
values given cannot be regarded
1
is required