SICK LSI 101, Техническое описание

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66 SICK LSI Technical Description - 06/98
11.2 Startup testing and restart
Performing startup testing
You can set in the PLS/LSI user software whether you want to
perform a startup test after your LSI system powers up. With the
startup test you can check that the protective field evaluation
you have stored in the LSI is working correctly.
In the process you test only the sensor active on power-up and
the monitoring area assigned to it. Which sensor and monitoring
area is tested depends on which monitoring case is first active
on power-up. As two monitoring cases can be active at any one
time (simultaneous monitoring cases), you must test either one
or two sensors in startup testing.
Only after startup testing are the configured outputs enabled,
and the system ready for operation.
How to set up startup testing in the PLS/LSI user software is
described in section 9.3.
How to perform startup testing:
• Switch on your LSI system (allow a few seconds for start-up).
On the active sensor (where appropriate, on two sensors) the
green LED lights up: the protective field active on power-up of
the sensor is free.
On the LSI the red LEDs on the two outputs (OSSD A and
OSSD B) light up: the outputs are deactivated.
•
Intrude into the protective field of the active sensor so that
the red LED on the sensor lights up.
•
Move out of the protective field again.
•
As appropriate, intrude into the protective field of the second
active sensor and move out of it again.
Depending on which restart behavior you had configured in the
PLS/LSI user software, the configured output (or both outputs)
is enabled. The following subsection gives more detailed
information on restart behavior.
Red Yellow Green
Yellow Green
Red
Green
Red
Yellow Yellow
ERROR
WEAK/ RES RES OSSD OSSD
A B
Red Yellow Green