Pepperl+Fuchs WCS Series - Status and Error Messages for SSI Interface

2020-01
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WCS* Read Head Position Encoding System
SSI Interface (LS3xx*)
5.4 Status and Error Messages
Error
number Cause Remedy
1
2
WCS read head cannot calculate position
value because:
Optical unit is dirty Clean optical unit
Plastic protective lenses are scratched Align WCS read head and code rail cor-
rectly; replace scratched plastic protec-
tive lenses
Position of the read head in relation to the
code rail is incorrect
Check the position of the WCS read head
in relation to the code rail; install WCS
read head correctly
Light barriers have failed Check light barriers; if necessary send for
repair
3 RAM error, WCS read head Send WCS read head for repair
4 EPROM error, WCS read head Send WCS read head for repair
5 ROM error, WCS read head Send WCS read head for repair
6 Reserved
7 No position value available Message only after switching on the
WCS read head and/or after a RESET