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SG4 BASE
36/74
SG4-xx-xxx-OO-E:
Display
LED
NORMAL OP.
LED
SAFE (BREAK)
LED yellow
SYNC
LED yellow
LAST
Condition
Alignment
status
OFF
ON
ON
ON
SYNC NOK
LAST NOK
SYNC OK
LAST NOK
Not
aligned
OFF
ON
OFF
ON
SYNC OK
LAST OK
Not
aligned
OFF
ON
OFF
OFF
MIDDLE OPTICS NOK
Not
aligned
ON
OFF
OFF
OFF
Each beam is over the min.
operating threshold and the
number of beam over
the threshold is included
between 0 and 25%
MINIMUM
align.
ON
OFF
OFF
OFF
Each beam is over the min.
operating threshold and the
number of beam over
the threshold is included
between 25 and 50%
-
ON
OFF
OFF
OFF
Each beam is over the min.
operating threshold and the
number of beam over
the threshold is included
between 50 and 75%
-
ON
OFF
OFF
OFF
Each beam is over the min.
operating threshold and the
number of beam over
the threshold is included
between 75 and 100%
MAXIMUM
align.
a.
Keep the receiver in a steady position and set the emitter until the yellow LED (
SYNC) is OFF. This
condition shows the alignment of the first synchronisation beam.
b. Rotate the emitter, pivoting on the lower optics axis, until the yellow LED (
LAST) is OFF.
c. Delimit the area in which the green LED (
) is steady through some micro adjustments - for the first and
then for the second unit - so to have the maximum alignment (4) and then place both units in the centre of this
area.
d. Fix the two units firmly using brackets. Verify that the green LED (
) on the RX unit is ON and beams are
not interrupted, then verify that the red LED SAFE (BREAK)
turns ON if even one single beam is
interrupted (condition where an object has been detected). This verification shall be made with the special
cylindrical “Test Piece” having a size suitable to the resolution of the device used (refer cfr.
Controls after first
installation page 24
e. Switch OFF and ON the device in normal operating mode.
The alignment level is monitored also during device standard operating mode via display (cfr.
USER INTERFACE
AND DIAGNOSTICS page 42
Once the curtain has been aligned and correctly fastened, the display signal 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.
Ensure that the green LED (
NORMAL OP.) is steady ON.