PRECITEC Lasermatic LightCutter, Руководство по эксплуатации

Страница: 49 / 82

4 Commissioning
D 159195 © Precitec GmbH & Co. KG • EN 09/2019
4 - 39
4.3 Checking the standoff distance
The standoff distance
(nominal distance, Zn)
is the distance between the tip of
the sensor
(nozzle/nozzle electrode)
and the surface of the workpiece.
Fig. 4-4 Commissioning: Laser beam - Standoff distance
When checking the standoff distance, the system
must not
be
under pressure
and the laser must be
switched off
.
SPS
2
1
I/O
Analysing electronics
LC-
BA-oBnc
1 BNC connection
(1, label)
2 Sensor cable
(max. 20 m)
Use
[NomClrNr]
to select one of the predefined standoff distances
Zn1
to
Zn4
.
The selected standoff distance is the nominal value to be used by the adjust
box
(EG)
.
The standoff distance can only be selected on the adjust box
EG8030
if
[PaSelct]
is enabled.
1.
Enable Automatic mode.
2. Select nominal distances (Zn) one after the other and follow the on-screen display.
The actual distance and the standoff distance must match.
3. Check or measure the standoff distance (e.g. Zn1) .
Select the standoff distance, enable manual mode and measure the actual distance bet-
ween the nozzle and the workpiece.
Should the measured value deviate from the displayed standoff distance, calibration must
be repeated with the correct characteristic curve.
For detailed information on selecting and setting standoff
(nominal)
distances
(Zn)
using the analysing electronics, please refer to the separate
Adjust Box
EG8030
documentation.