Leuze electronic MSI-MD-FBX Original Operating Instructions page 6

Tab. 1.3: Terms and abbreviations
AOPD
Blanking
CS
EDM
FG
LED
MS1, MS2
MTTF
d
Muting
OSSD
PFH
d
PL
Reduced resolution
RES
Scan
Safety sensor
SIL
State
Leuze electronic
Active Optoelectronic Protective Device
(Active Optoelectronic Protective Device)
Deactivation of the protective function of individual beams or beam areas with
monitoring for interruption
Switching signal from a control or a machine interface
(Controller Signal)
Contactor monitoring
(External Device Monitoring)
Function group
(Function Group)
LED, display element in transmitter and receiver
Muting sensor 1, 2
Mean time to dangerous failure
(Mean Time To dangerous Failure)
Temporary automatic suppression of the safety functions
Safety-related switching output
(Output Signal Switching Device)
Probability of a dangerous failure per hour
(Probability of dangerous Failure per Hour)
Performance Level
Reduction of the detection capability of the protective field without monitoring
for tolerating small objects in the protective field
Start/restart interlock
(Start/REStart interlock)
Consecutive scans of the protective field from the first to the last beam
System consisting of transmitter and receiver
Safety Integrity Level
ON: device intact, OSSD switched on
OFF: device intact, OSSD switched off
Locking: device, connection or control / operation faulty, OSSD switched off
(lock-out)
MSI-MD-FBX
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6