Pepperl+Fuchs HiC2821, Safety Manual

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Safety Manual SIL KCD2-SR-(Ex)*(.LB)(.SP), HiC282*
Planning
2.3 Safety Function and Safe State
The safe state of each channel is "output de-energized", independent of the
mode of operation.
The safety function has two modes of operation:

normal operation (output follows input)

inverted operation (output inverts input)
The one channel devices have two outputs where output II may be used in safety
relevant applications if it is configured to follow output I.
Therefore the DIP switch settings for all channels used in safety relevant
applications are:
DIP Switch Settings 1-channel Devices
DIP Switch Settings 2-channel Devices
LB/SC Diagnosis
The input loop of all versions is supervised, if the line fault detection is active
(mandatory, see data sheet). The related output goes to the safe state in case of
line fault.
Function Mode KCD2-SR-(Ex)1.LB(.SP) HiC2821
Output I normal mode normal mode S1 position I S1 position II
inverted mode S1 position II S1 position I
Assignment output II follow output I S2 position I S3 position I
LB/SC detection
1
S2 position II S3 position II
Line fault detection ON S3 position I S2 position I
OFF
2
S3 position II S2 position II
1
This mode may not be used if output II is used for safety relevant applications.
2
This switch setting may not be used if the device is used for safety relevant applications.
Table 2.1
Function Mode KCD2-SR-(Ex)2(.SP) HiC2822
Mode channel 1 normal mode S1 position I S1 position II
inverted mode S1 position II S1 position I
Mode channel 2 normal mode S2 position I S3 position II
inverted mode S2 position II S3 position I
Line fault detection
channel 1
ON S3 position I S2 position I
OFF
1
S3 position II S2 position II
Line fault detection
channel 2
ON S4 position I S4 position I
OFF
1
S4 position II S4 position II
1
This switch setting may not be used if the channel is used for safety relevant applications.
Table 2.2