![Roland l20 Manual Download Page 20](http://html1.mh-extra.com/html/roland/l20/l20_manual_1479453020.webp)
Manual
Double Sheet Control System R1000 series L20
with integrated fieldbus interface
Mounting
B0063191 / 1.3
20
ROLAND ELECTRONIC GmbH · Otto-Maurer-Str. 17 · DE 75210 Keltern · Phone +49 (0)7236-9392-0 · Fax +49 (0)7236-9392-33
4.3.1 Procedure at mounting
The alignment-bracket must be removed only at the end of the mounting process!
1. Screw the sensors loosely on the angles.
2. Screw the angles to the system, but do not tighten the screws. Make sure that no mechanical
tension occurs between the sensor enclosures.
3. Tighten all screws. Take care that no tensions persist between the parts.
4. Finally remove the alignment-bracket.
5. At L20-3-XX-S with :
Verify sensor alignment with adjust parameter 4, “alignment”.
Attention
After mounting a measuring point calibration should be performed to
the L20. See also chapter 8.4 "Measuring point calibration".
4.3.2 Alignment of the sensors at remounting, exchange or change
1. For alignment of the sensors place the sensors one to each other with the mounting side on a
adjusting plate or an equally smooth surface.
2. Lay a gauge block or equivalent with 40 mm between the sensors.
3. Screw the adjustment-bracket tight. The screws may be screwed in this case depending on the
mounting situation from both sides in order to be easily removed after the alignment. Thereby
make sure that the sensors lay plane to the plate and fit firmly against the gauge block.
4. Fasten the sensor pair as described previously.
Attention
After mounting a measuring point, a calibration should be performed
to L20. See also chapter 8.4 "measuring point calibration".
4.3.3 Control of the laser beam axis
After mounting or adjusting a sensor it might be necessary to control the axis of the laser beam.
In the program switch the „sensor alignment help“ on, see chapter 7.4.3 substructure „alignment
parameters“ (details in chapter 7.8)
To check hold a non-reflective piece of paper at various points in the beam. The sensors will flash
alternately. The laser beam is visible through the paper, so that a properly aligned system should
have no offset between the two points on the paper. At a larger displacement or angular deviation
of the laser beam, an inclined position of the sheet can lead to variations in measurements.
At an offset of several millimetres, the sensors should be realigned. At usage of , the
alignment can be verified with adjust parameter 4, “alignment”.
Warning – Laser radiation!
Eye hazard from laser radiation. Do not stare into the laser beam.