IDEC SG4 Type 4 Finger & Hand - Manual (Page 39)

Instruction Manual SG4-B Series
35
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.
NOTE: Ensure that the green LED ( NORMAL OP) is steady
ON.
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 paragraph 2.2.6 ”Controls after first
installation”).
E Switch OFF and ON the device in normal operating mode.
The alignment level is monitored also during device standard
operating mode via display (see paragraph 7.2).
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.