SG4E Full Rev01.pdf - Datasensor

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SG4-E INSTRUCTION MANUAL
In Alignment Mode ESPE is always in Safe State and the OSSDs are kept OFF.
The state of alignment is estimated from RX unit by reading the received signal level of each
beam compared on 4 factory established thresholds. First and last beams received level get
some more weight.
In alignment mode user interface informs the user about quality and level of alignment:
A. Keep the receiver in a steady position and set the emitter until the yellow SYNC1 LED
is OFF. This condition shows the effective alignment of the first synchronisation beam
B. Rotate the emitter, pivoting on the lower optics axis, until the yellow SYNC2 LED is
OFF
C. Delimit the area in which alignment is good and steady through some micro
adjustments - for the first and then for the second unit – in order to have the
maximum alignment LEVEL (••••) and then place both units in the centre of this
area
D. Fix the two units firmly using brackets. Verify that the LEVEL on the RX unit is as high
as possible and beams are not interrupted, then verify that all LEVEL Led turn OFF if
even one single beam is interrupted. This verification shall be made with the special
cylindrical “Test Piece” having a size suitable to the resolution of the device used (see
par 2.2.5)
E. Switch-off and on the device in standard operating mode. The alignment level is
monitored also during the device normal operation with the same display (see par
8.1). Once the light curtain has been aligned and correctly fastened, the signal
display is useful both to check the alignment and show a change in the environmental
conditions (occurrence of dust, light disturbance and so on) via signal level monitoring
Indication
No Sync, check
SYNC1
RX Led configuration
Alignment
Status
NONE
OSSD Status
in Normal
Operation
OFF
SYNC1 aligned NONE OFF
SYNC2 aligned NONE OFF
One or more
intermediate
beams not aligned
All beams aligned
NONE
BAD
OFF
ON
All beams aligned
All beams aligned
ON
ON
All beams aligned EXCELLENT ON
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