SICK CLV490 Instrucciones de operaciones descargar pdf (Pagina 89)

Operating Instructions Chapter 6

CLV490 Bar Code Scanner

Operation

Note The minimum and maximum values for the active evaluation range of the scan line (reading

angle limits) can be checked in the S

HOW RA-LIMITS mode.

See also Chapter 6.5.5 Show RA-limits, Page 6-46.

Recommendation Don’t configure the reading space if you use the free running mode in combination with a

fixed focus position (fix focus mode). Restrict the reading space using the reading angle

limits.

• Autofocus:

Using the periodic object distance measurement function, the CLV490 creates an up-

to-date distance profile in its area of view with every 10th scan. From this profile, the

CLV490 uses the selected autofocus mode, the parameterized limits of the autofocus

area, and the taught-in background (optional) to automatically determine the required

focus position for a detected object. The defined autofocus area should be within the

limits of the parameterized reading area.

• Event-controlled focus control:

The CLV490 controls its focus position by means of object distance information, which

it receives either externally via the switching inputs (reading from above: object height

detection by means of photoelectric switches) and their assignment to parameterized

distance configurations, or by means of command strings via the serial data interface

(also with reference to distance configurations). In timer mode (search), the CLV490

changes its focus position step by step according to the parameterized number and

sequence of distance configurations. The line scanner with oscillating mirror also uses

– similar to the timer mode – its oscillating mirror reversal points at the maximum

deflection points to trigger the switchover.

Action Settings in CLV-Setup

Define reading angle limitations

– and/or –

Ö READING CONFIGURATION tab

Ö READING AREA section

Ö READING ANGLE LIMITS

Ö DISTANCE CONFIGURATION button

Ö DISTANCE CONFIGURATION tab

– configuration 1: Minimum RA and Maximum RA

Oscillating mirror:

– additionally: Oscillating mirror amplitude CW

Define reading space

Ö READING AREA section

Ö READING AREA

Ö READING SPACE PARAMETERS button

– Right edge of conveyor (Y 1)

– Left edge of conveyor (Y 2)

– Level of conveyor (Z 1)

– Maximum scanning height (Z 2)

Define the CLV490 position referred to the reading space

(point of origin):

Ö DEVICE CONFIGURATION tab

Ö SCANNER POSITION PARAMETERS button

Ö ANGLES

– alpha, beta and gamma

Ö COORDINATES

– x-, y- and z-coordinates

Table 6-4: Guide: Configuring the reading area

b) Selecting focus control mode

1 2 ... 84 85 86 87 88 89 90 91 92 93 94 ... 269 270

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SICK CLV490 Instrucciones de operaciones Pagina 89

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