Initial Commissioning; Switch On Device / Function Check; Fine Adjustment - Leuze electronic DDLS 200 Technical Description

Commissioning / Operation (all device models)
11.3

Initial commissioning

11.3.1 Switch on device / function check

After applying the operating voltage, the DDLS 200 first performs a self-test. If the self-test is success-
fully completed, the PWR or UL LED illuminates continuously and the DDLS 200 switches to the "Au-
tomatic" operating mode. If the connection to the opposing device exists, data can be transmitted
immediately.
If the PWR or UL LED flashes after switching on, there may be two causes: a hardware error has oc-
curred or the transmitter/receiver unit has been switched off via the IN switching input ("Switching in-
put" on page 18).
If the PWR or UL LED remains dark after switching on, there is either no voltage supply present (check
connections and voltage) or a hardware error has occurred.

11.3.2 Fine adjustment

If you have mounted and switched on the two DDLS 200s of a given optical transmission path and
they are both in the "Automatic" operating mode, you can perform the fine adjustment of the devices
relative to one another with the aid of the three alignment screws.
Note!
Note that with "alignment", the transmitter with the beam which is to be positioned as exactly
as possible on the opposing receiver is always meant.
At the maximum sensing distance, the bar graph does not show end-scale deflection even
with optimal alignment!
The DDLS 200 supports fast and easy fine adjustment. The optimization of the alignment between
the two devices of one transmission path can be performed by just one person. Use the following
descriptive steps as a set of numbered instructions:
1. Both devices are located close to one another (> 1m). Ideally, the bar graphs of both devices
display maximum end-scale deflection.
2. Switch both devices to "Manual" (MAN) by pressing the button for a relatively long time (> 2s).
Data transmission remains active, only the internal cut-off threshold is changed to the warning
threshold (yellow LEDs).
3. While in the "Manual" operating mode, move until data transmission of the DDLS 200 is inter-
rupted. You can normally give the vehicle a run command up to the end of the lane. The vehicle
stops immediately upon interruption of data transmission. The devices are not yet optimally
aligned with one another.
4. Briefly press the button to switch both devices to the "Adjust" operating mode (ADJ). Data
transmission remains interrupted.
5. The devices can now be individually aligned. The result of the alignment can be read directly in
the bar graph.
6. When both devices are aligned, briefly pressing the button on one of the devices is enough to
switch both back to the "Manual" operating mode (MAN). Data transmission is again active; the
vehicle can continue its path. If data transmission is interrupted again, repeat steps 3 through 6.
7. If the data transmission and the alignment are OK through the end of the path of motion, switch
both devices back to the "Automatic" (AUT) operating mode by pressing the button for a rela-
tively long time (> 2s). The optical data transceiver is now ready for operation.
62 DDLS 200 Leuze electronic