Startup
48
SOLID-4
Leuze electronic
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EDERLANDS
8.1.3
Display sequence on receiver SD4R
After switch-on, "8." appears on the transmitter display for a few moments followed by an
"S" for approx. 1.5 sec. indicating a self test. The display then switches and constantly
displays the selected transmission channel, either "1" or "2".
Attention!
If the receiver responds with the error display, the 24 V DC connection voltage and wiring
are to be inspected. If the display persists after switching on again, immediately interrupt
start-up and return the defective receiver to us for inspection.
The displays on the receiver LEDs after switch-on:
Attention!
As soon as the receiver receives all beams, it switches to the ON state!
8.2
Aligning transmitter and receiver
Transmitter and receiver must be at the same height or, if installed in a horizontal position,
be at the same distance from the reference surface and lightly fastened at first. The narrow
specified angle of beam spread of ± 2° requires increased precision in aligning the two
components with each other before the devices are screwed firmly into place.
Note!
If cascaded AOPDs are aligned with each other, it must always be in the order of host first,
then guest.
8.2.1
Optimizing alignment by turning and/or tilting the transmitter and receiver
The difference between free protective field (display shows the numbers of the transmis-
sion channel) and weak signal (channel number flashes on the display) enables alignment
optimization.
If the components are already aligned, it is recommended that you optimize the alignment,
e.g. by turning the receiver. Turn the receiver with slightly loosened brackets until the 7-
segment display starts to flash. Take note of the position. Now turn the receiver in the
opposite direction until the display lights constantly and further, until it flashes again. Now
turn the receiver back in between the two positions determined. Screw the receiver firmly
into place to prevent turning. Now do the same with the transmitter.
For cascaded systems, the procedure can be performed for all transmitters and receivers
one after the other, beginning with the host. A precise preliminary alignment of all
components is also required here.
LED
Transmitter/receiver aligned and pro-
tective field
clear
Transmitter/receiver not aligned or
protective field
not clear
LED1
green =
ON-state of the OSSDs
red =
OFF-state of the OSSDs
Table 8.1-4:
LED display – receiver SD4R