63
S
I
C
K
O
p
t
i
c
-
E
l
e
c
t
r
o
n
i
c
B
a
r
C
o
d
e
S
c
a
n
n
e
r
s
5
Tr o u b l e s h o o t i n g
3. Reading Mode:
(Dev. Rdy LED lit)
The Result LED does
not light up at the end
of the reading pulse.
(cont)
4. Bar code presented at incor-
rect reading distance.
5. Reading configuration of the
CLV parameterized incorrectly
for the presented bar code.
6. Reading angle at which the
bar code appears is too large
(e.g. bar code slanted on
object)
7. CLV is in total reflection.
8. Evaluation criteria for bar
code types set incorrectly
(Code Configuration).
9. Code position reading zone
(CP values) have been
changed (default: Min. CP=0,
Max. CP=100).
10. The defined minimum num-
ber of bar codes to be read is
higher than the actual number
in the reading pulse.
11. Bar code quality is not suf-
ficient.
4. Is the reading distance feasible with this
device type in relation to the module width
of the bar code?
5. Are the values for min. reading distance
and min. bar code thickness correct?
6. Tilt, skew or pitch of bar code on scan
line incompatible?
7. The scan line should strike the bar code
at a skew of approx. 15 degrees.
8a. Are code type and length parameter-
ized correctly? Determine code type to be
read: enable all code types, set code
lengths to Free, download to CLV tem-
porarily. Call Percentage Evaluation, pre-
sent bar code, the code type is displayed
followed by the read quality.
8b. Determine Code length to be read:
enable code type, set code length to Free,
download to CLV temporarily. Call
Percentage Evaluation, present bar code,
the code length is displayed.
9a. Check setting on Reading
Configuration card.
9b. Does active evaluation zone coincide
with position of bar code in the scan line?
10. User interface (after upload from CLV):
Check Number of Codes menu option on
Code Configuration card.
11a. Number of idle zones sufficient (min.
10x module width, min. 2.5 mm)?
Segmentation setting on Reading
Configuration card set to Start/Stop?
11b. Is print contrast sufficient?
11c. Print tolerances (according to specifi-
cation) exceeded?
Malfunction
Possible Cause
Check
Remedy
4. Adjust distance.
5. User interface: enable all code
types on the Code Configuration
card. Download to CLV temporari-
ly. Call Percentage Evaluation
mode, choose sample code with
matching module width and check
the reading range from min. to
max. reading distance (read quali-
ty .70%). Adjust read configuration
if necessary.
6. Readjust CLV if necessary to
optimize reading angle.
7. Optimize CLV alignment.
8a. User interface: activate detect-
ed code type under Edit Codes on
the Code Configuration card, dis-
able all other types, download to
CLV.
8b. User interface: set the code
length for the relevant code type in
Edit Codes on the Code
Configuration card; download to
CLV.
9. User interface: call Percentage
Evaluation and test readability of
bar code at the center of the scan
line.
10. Adjust value accordingly (for
one code: min./max. = 1); down-
load to CLV.
11a. Check read with fault-free ref-
erence code. Bar code: enlarge
label, reduce module width or print
ratio (min. 2:1).
11b. Submit device for test (e.g. by
SICK Service Department)
11c. See 11b.
ERROR MESSAGES IN READING MODE
