Initial Start-Up
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10.3 Aligning the Emitter and Receiver
Alignment display for SEFB
• The alignment quality is indicated by LED SIG LOW for easy alignment of emitter and receiver.
• This display is also available in normal operation and lights up with the relevant alignment.
Display
Meaning
Explanation
OSSD
SIG LOW
ERROR
Optimal
• Signal strength is very good
• Synchronization complete
• OSSDs can be activated
• The optimal alignment for high process reliability has been
achieved.
OSSD
SIG LOW
ERROR
Weak
Signal strength is weak.
Synchronization complete
LED SIG LOW lights up
OSSDs can be activated
Improve the alignment to avoid unintentional switching due to
contamination, for example.
OSSD
SIG LOW
ERROR
Inadequate
• Receiver detects no emitter beams.
• No synchronization possible
• OSSDs are not activated
Alignment must be improved to commission the ESPE.