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SICK LSI Technical Description - 06/98
9.7 Adapt protective fields to
speed
When using the LSI on a vehicle, you can switch between
protective fields of different shapes and sizes depending on the
speed of the vehicle. In this way you can adapt the monitoring
area flexibly to the environment and speed of the vehicle.
You need to connect incremental sensors to the LSI for this. The
LSI receives the speed data from the incremental sensors and
switches to a different monitoring case as required.
•
Determine the number of pulses each incremental sensor
delivers per centimeter covered by your vehicle
(a calculation example for a typical application is given in the
appendix, section 11.1).
•
To enable to configuration to be transferred subsequently to
the LSI, log on as an Authorized Client by choosing
LSI - User Category
from the menu.
•
From the menu choose
File - New
and in the dialog boxes
define a LSI configuration with the following settings:
Application variant: Vehicle protection
Pixel suppression active: This is the recommended setting to
avoid error shutdowns and to improve system availability.
Use incremental sensors: As a result inputs C and D are
automatically occupied and are no longer available for you to
use.
Activate inputs and outputs, and contactor monitoring, as
required.
(In the example no other input is configured apart from the
incremental sensors. Output OSSD A is connected to the
brake system of the vehicle in this case.)