Datalogic SG-BODY Series, Быстрое руководство, Страница: 3 / 8

3
ALIGNMENT PROCEDURE
The alignment between the emitting and the receiving units is necessary to obtain the correct functioning of the light
curtain. A good alignment prevents output instability caused by dust or vibrations.
The alignment is perfect if the optical axes of the first and the last emitting unit 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.
Receiver
LAST
SYNC
NORMAL
OPERATION
SAFE
Emitter
EMISSION
POWER ON
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.
Two yellow LEDs (
LAST, SYNC) on SG-BODY receiver facilitate the alignment procedure.
Correct alignment procedure
The light curtain alignment can be effected only after having completed the mechanical installation and the electrical
connections. The following procedure has to be followed:
NOTE: SG-BODY is equipped with a system which informs the user on the alignment obtained.
The alignment function can be activated when powering the device, by keeping the normally open RESET/RESTART
contact closed for at least 0.5 seconds. In alignment mode, OSSD state is always OFF.
In alignment mode the internal and external lamps blink as quickly as more the alignment level increases.
Visualization Alignment state Alignment quality
OSSD state out of
alignment-function
No sync  check 1
st
beam Bad OFF
Last beam isn’t aligned Bad OFF
One or more intermediate beams are
not aligned
Bad OFF
Good ON
Every beam over the lower threshold
and up to 25% of beams over the
upper threshold
ON
Every beam over the lower threshold
and up to 50 % of beam over the
upper threshold
ON
Every beam over the lower threshold
and up to 75% of beam over the
upper threshold
ON
Every beam over the lower threshold
and up to 100% of beam over the
upper threshold
Excellent ON
Last optic (LAST)
First optic (SYNC) = synchronisation optics