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Chapter
3
Operating Instructions
CLV490 Bar Code Scanner
3-12
©
SICK AG · Division Auto Ident · Germany · All rights reserved
8009993/RA61/2007-07-20
Product description
CLV490 with external parameter memory connected
a) External parameter memory in connector cover
Percentage
Sensor
Green
•
Lights up constantly, as Free-running mode is active
evaluation
Read Result
Green
Behavior depends on the reading quality:
•
Extinguishes if reading rate < 30 %
•
Blinks twice a second if reading rate 30 % to 70 %
•
Blinks five times a second if reading rate 70 % to 90 %
•
Lights up constantly if reading rate > 90 %
Adjusting mode Sensor
Green
•
Lights up constantly, as Free-running mode is active
Show RA-limits
Sensor
Green
•
Blinks bright/dark alternately, in the frequency with which the scan line is (partially)
masked out
1) Set the start option to S
TART
WITH
THE
INTERNAL
P
ARAMETERS
on the D
EVICE
C
ONFIGURATION
tab in the "CLV-Setup" program. Download to CLV490!
Operating mode LED
Display
Function
Table 3-2: Meaning of LEDs: CLV490 without external parameter memory (contd.)
Operating mode LED
Display
Function
Start
Device Ready
Green
•
Lights up after power-up if the self-test was successful
Subsequent behavior depends on selected start option:
Start option: S
TART
WITH
EXTERNAL
P
ARAMETERS
(default)
•
Blinks for approx. 10 s before lighting up constantly
(CLV490 has loaded the parameter set from the external parameter
memory and starts reading mode straight away)
•
Blinks for approx. 10 s together with the "Read Result" LED, then lights up
constantly.
(CLV490 has loaded the parameter set from the external parameter memory with
tolerated errors
1)
and starts reading mode straight away)
•
Lights up constantly
(CLV490 could not find an external parameter memory and loads the internal
parameter set instead)
•
Blinks constantly together with the "Read Result" LED
2)
(The external parameter memory contains the parameter set for a different
CLV490 type or is corrupt.
CLV490 has loaded the internal parameter set. It starts Reading mode but does
not output data over the host interface.)
Start option: S
TART
WITH
INTERNAL
P
ARAMETERS
•
Lights up constantly (CLV490 has loaded internal parameter set)
Start option: S
TART
WITH
C
OPY
I
NTERN
-> E
XTERN
•
Blinks alternately with the "Read Result" LED for approx. 10 s before lighting
up constantly
(CLV490 has successfully copied the internal parameter set to the external mem-
ory and has reset the start option to S
TART
WITH
EXTERNAL
P
ARAMETERS
).
CLV490 has loaded the internal parameter set.
•
Blinks constantly together with the "Read Result" LED
2)
(The external parameter memory is either not connected or corrupt, or the
parameter set is too large to be copied).
CLV490 has loaded the internal parameter set.
1) We recommend that you check the parameter set manually, e. g. by printing out the entire configuration. For troubleshooting, see also
Chapter 8.3.2 LED error messages
for the external parameter memory (connector cover), Page 8-3
2) Stops blinking when you switch from Reading mode to Parameterization mode
Table 3-3: Meaning of LEDs: CLV490 with external parameter memory in the connector cover
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