SICK CLV490 Betriebsanleitung PDF herunterladen (Seite 19)

Operating Instructions Chapter 2

CLV 490 Bar Code Scanner

8 008 796/0000/25-06-2002

2-3

Safety information

Note A set of laser warnings in German/US English and French/US English is included in the

delivery scope. The GB English/US English warnings can be pasted over with these if

necessary.

If the CLV is installed in a machine/panel with the result that the laser warning labels

are no longer visible, additional warnings (not included in the scope of delivery) must

be provided on the machine beside the emergence aperture of the laser beam.

Internal protective circuits

The CLV is equipped with monitoring circuits that deactivate the laser diode in the event of

a malfunction.

Activation and deactivation of the laser diode is controlled by the reading pulse trigger.

A timer (laser timeout) automatically deactivates the laser diode in Reading mode ("Sensor

input" and "Serial interface" trigger mode) if the reading interval has not ended after

10 minutes (default setting). However, it does not end the reading interval. In this case, the

CLV outputs the message:

"Laser safety timeout"

on the terminal interface. The reading interval must be terminated by resetting the trigger

signal. The laser diode is activated again by the next reading trigger.

In the Percentage Evaluation mode, Adjusting mode and Show CP-limits as well as in

the Free-running Reading mode the laser diode is constantly activated.

Note In the Reading mode, the CLV carries out a distance measurement referencing at regular

intervals. During referencing, it turns the laser diode on for a maximum of 10 seconds.

2.4 Quick stop and quick restart

2.4.1 Stopping the CLV

Switch off the power supply.

This can result in loss of the following (at the most):

•

The application-specific parameter set, if it was stored temporarily in the CLV

•

The last reading result

•

Daily operating data

(operating hours counter, number of reading intervals, Good Read count, maximum

duration trigger, minimum duration trigger, average identification quality)

2.4.2 Restarting the CLV

Switch on the power supply.

The CLV resumes operation with the parameter set that was last stored permanently

and reset the daily operating data.

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SICK CLV490 Betriebsanleitung Seite 19