48
12 Terms and abbreviations
ESPE
Electro-Sensitive Protective Equipment�
Cat�
Category
Category
Classification of the safety-related
parts of a controller as regards their
resistance to failures�
CCF
Common Cause Failure
Common cause failure�
DC
Diagnostic Coverage
Diagnostic coverage�
MTTF
Mean Time to Failure
Mean time to failure�
MTTF
D
Mean Time To Dangerous
Failure
Mean time to dangerous failure�
OSSD
Output Signal Switching Device Switching output triggering the safety
circuit
PFH
(PFH
D
)
Probability of (dangerous)
Failure per Hour
Probability of a (dangerous) failure per
hour�
PL
Performance Level
PL to EN ISO 13849-1
SIL
Safety Integrity Level
SIL 1-4 to IEC 61508
PLC
Programmable Logic Controller
Technical data and further information at
www�ifm�com
Summary of Contents for G1501S
Page 1: ...706199 00 04 2012 Original operating instructions Safety relay with relay outputs G1501S UK ...
Page 16: ...16 Input circuit Output status LED display ...
Page 17: ...17 UK Input circuit Output status LED display ...
Page 26: ...26 LED display Cause of the fault Troubleshooting Short circuits Check wiring ...
Page 34: ...34 8 4 2 Function Input circuit Output status LED display N O contact activated ...
Page 44: ...44 LED display Cause of the fault Troubleshooting Short circuits Check wiring ...
Page 49: ...49 UK ...