8
SI-Safety Installation & Operating Manual
Issue Number: 1
1.4
Terms and abbreviations
Table 1-2 Terms and abbreviations
Abbreviation
Description
AC
Alternating current
AWL
Instruction set
BGIA
German government safety organization
CCF
Common-caused failures recognition
CLK
Cycle (clock)
CPU
Central Processing Unit
DC
avg
Diagnostic cover level on demand
DO
Digital Output
ELC
Emergency Limit Control
EMC
Electromagnetic Compatibility
EMU
Emergency Monitoring Unit
EN
European standard
IP20
Protection class for enclosures
ISO
International Organisation for Standardization
LED
Light Emitting Diode
MTTF
d
Mean
Time To Failure in the dangerous direction
OSSD
Output Signal Switch Device
PAA
Process diagram for outputs
PAE
Process diagram for inputs
P1,P2
Pulse outputs 1, 2
PLC
Programmable Logic Control
SBC
Safe Brake Control
SCA
Safe Cam
SDI
Safe Direction
SEL
Safe Emergency Limit
SELV
Safety Extra Low Voltage
SLI
Safe Limited Increment
SLP
Safe Limited Position
SLS
Safe Limited Speed
SI Solutions
Interface
SMF11 to SMF42, E0.5
Digital input
SOS
Safe Operating Stop
SS1
Safe Stop 1
SS2
Safe Stop 2
SSI
Synchronous Serial Interface
STO
SAFE TORQUE OFF
T
Ü
V
German Technical Inspections Organization
HISIDE
Output switching to + (“high side") with nominal level of 24 Vdc
PES
Programmable Electronic System
Содержание unidrive m
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