About this document
Leuze electronic GmbH + Co. KG
MSI-SR4B
4
1
About this document
1.1
Used symbols and signal words
Table 1.1:
Warning symbols and signal words
Table 1.2:
Other symbols
Table 1.3:
Terms and abbreviations
1.2
Checklists
The checklists (see chapter 9 "Testing") serve as a reference for the machine manufacturer or supplier.
They replace neither testing of the complete machine or system prior to the initial start-up nor their periodic
testing by a competent person. The checklists contain minimum testing requirements. Depending on the
application, other tests may be necessary.
Symbol indicating dangers to persons
NOTE
Signal word for property damage
Indicates dangers that may result in property damage if the measures for danger
avoidance are not followed.
CAUTION
Signal word for minor injuries
Indicates dangers that may result in minor injury if the measures for danger avoid
-
ance are not followed.
WARNING
Signal word for serious injury
Indicates dangers that may result in severe or fatal injury if the measures for danger
avoidance are not followed.
DANGER
Signal word for life-threatening danger
Indicates dangers with which serious or fatal injury is imminent if the measures for
danger avoidance are not followed.
Symbol for tips
Text passages with this symbol provide you with further information.
Symbol for action steps
Text passages with this symbol instruct you to perform actions.
AOPD
Active Optoelectronic Protective Device
Active Opto-electronic Protective Device
EDM
External Device Monitoring
OSSD
Output Signal Switching Device
SSD
Secondary Switching Device
RES
Start/REStart interlock
PFH
D
Probability of a dangerous failure per hour
Probability of dangerous Failure per Hour
MTTF
d
Mean time to dangerous failure
(Mean Time To dangerous Failure)
PL
Performance Level
