Chapter
5
Operating Instructions
CLV62x Bar Code Scanner
40
©
SICK AG · Division Auto Ident · Germany · All rights reserved
8011965/S345/2008-04-16
Installation
5.5
Installing external components
5.5.1
Installing connection module CDB620 or CDM420
Depending on the application, you can install either connection module CDB620 or
CDM420. The installation process is the same for both modules.
Important
If the PC with the SOPAS-ET configuration software accesses the bar code scanner's auxil-
iary interface (RS-232; 57.6 kbd) via the connection module, the connection module should
not be installed more than 3 m (9.84 ft) cable lengths away from the bar code scanner.
1. Install the connection module close to the bar code scanner.
2. Install the connection module in such a way that the opened device can be accessed
at any time.
5.5.2
Installing the external reading pulse sensor
If the bar code scanner is triggered by an external reading pulse sensor (photoelectric reflex
switch), the sensor has to be installed close to the bar code scanner.
Fig. 5-8:
Line scanner: Installation example for positioning the external reading pulse sensor
The installation location depends on the distance (a) of the bar code to the front edge of the
object. Depending on the application, the sensor should be attached in such a way that bar
codes on different sized objects can be fully read during the evaluation (reading gate).
5.5.3
Installing the incremental encoder
An incremental encoder is required for separating bar codes with the same code type and
identical content.
The increment impulses have to come from the conveyor system area where the bar code
scanner is reading.
1. Install suitable increment encoders near to the bar code scanner, best against the di-
rection of the conveyor system in front of the bar code scanner.
2. Ensure that the incremental encoder has direct and fixed contact with the drive system
and that the friction wheel rotates without slipping.
Important
For detailed information about installation and electrical installation, see the operating in-
structions "Connection Module CDB620“ (no. 8012119, German/English) or "Connection
Module CDM420-0001“ (no. 8010004, German/English).
Bar code scanner in the middle or at the end of
the conveyed material
Bar code scanner at the beginning of the con-
veyed material
b
b < a
b
b < a
