SG4 BASE
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5 ALIGNMENT PROCEDURE
The alignment between the emitting and the receiving units is necessary to obtain the correct operation of the light
curtain.
A good alignment prevents outputs instability caused by dust or vibrations.
The alignment is perfect if the optical axes of the first and the last emitting unit's beams coincide with the optical
axes of the corresponding elements of the receiving unit.
The beam used to synchronise the two units is the first after the connector.
SYNC is the optics connected with this beam and LAST is the optics connected to the last beam after the SYNC
unit.
Fig 33 -
Signals are clearly identified through symbols allowing immediate reading, independent of bars directions. A short
description of the signalling LEDs is necessary to avoid misunderstandings.
Fig 34 - Receiver & Emitter