Festo CAMC-G-S3 Manual page 256

A Technical appendix
Error acceptance
Supplementary requirements for resolvers with signal processing / reference generator (encoder 1)
Crosstalk on the reference
frequency
– central timer fails
– no Conversion Start for ana­
logue-digital converter
– Sample & Hold occurs at the
wrong time
Analogue-digital converter
generates incorrect values
Analogue-digital converter does
not generate any values
Reference generator does not
supply any frequency
Reference generator supplies an
incorrect frequency
Reference generator does not
supply a periodic reference
signal
Amplification error during signal
processing (reference, sin, cos
signal), oscillation
Magnetic interference at the
installation location
Supplementary requirements for shaft encoders with rectangular output signals (encoder 1)
Interference vibration at the
output
Output signal terminates
Zero pulse fails, is too short, too
long or occurs multiple times
Supplementary requirements for shaft encoders with synthetically-generated output signals
(encoder 1 or encoder 2)
Any falsification of the output
signal
1) Sensitivity and DC in accordance with the parameterised fault limits; specification applies to factory setting
2) Limitation through DCAV of the module through DC of the basic unit
256
Fault Error detection by the
exclusion safety module
None Individual signal monitor­
ing and vector length
monitoring
None
Cross-comparison of the
position data
(Encoder 1 - encoder 2)
None
None
None
None
None
None
Sufficient
screening
for the in­
stallation
location
None Cross-comparison of the
position data
(Encoder 1 - encoder 2)
None Cross-comparison of the
position data
(Encoder 1 - encoder 2)
Festo – GDCP-CAMC-G-S3-EN – 1406NH – English
Supplementary notes/
comments
DC
1)
DC
DC
1 x "high"
(safety module)
+ 1 x "low"
2)
(basic unit)
1 x "high"
(safety module)
+ 1 x "low"
2)
(basic unit)
1 x "high"
(safety module)
+ 1 x "low"
2)
(basic unit)