Reference Manual - clv490.pdf - Machine Vision Components

Chapter 4
Installation
Operating Instructions
CLV 490 Bar Code Scanner
Show CP Limits
The "Show CP Limits" operating mode allows you to test whether the desired effect was produced
by narrowing the scan line’s active evaluation range. The CLV alternatively hides certain
parts of the scan line in accordance with the selected min. and max. values of the code
position.
For activation of this operating mode and for checking, See Chapter 6.5.5 Show CP-limits,
Page 6-26.
4.4 Mounting the external components
4.4.1 Mounting the AMV/S 60 Connection Module
1. Mount the AMV/S 60 Connection Module near the CLV.
The distance between the AMV/S 60 and CLV should not exceed max. 10 m.
2. Mount the AMV/S 60 in such a way that accessed to the open device is always possible.
The terminal interface of the CLV is accessed via the internal "Service" plug.
Detailed information on the mounting and electrical installation procedures is provided in the
Operating Instructions for the "AMV/S 60 Connection Module" (order no. 8 008 296).
4.4.2 Mounting the external reading pulse sensor
If the CLV is triggered by an external reading pulse sensor, the sensor must be mounted in
the vicinity of the CLV. The "Sensor" switching input is selected as the default trigger source
for this trigger type. The default debounce time of the input is 30 ms.
Fig. 4-10 shows two examples of where a photoelectric reflex switch can be mounted. This
depends on the distance a from the bar code to the front of the object. Depending on the
application, you may need to mount the sensor in such a way that bar codes on objects of
different sizes can be read completely during the reading interval.
Bar code in the center or at the end of the object
a
(Top view)
a
b
b < a
b < a
b
Bar code at the start of the object
aa
(Top view)
a
b
b < a
b < a
b
Fig. 4-10:
Line scanner: mounting example for the external reading pulse sensor
4-10 © SICK AG · Division Auto Ident · Germany · All rights reserved 8 008 796/0000/25-06-2002