Chapter
8
Operating Instructions
CLV 480 Bar Code Scanner
8-12
©
SICK AG · Division Auto Ident · Germany · All rights reserved
8 010 080/O824/10-02-2005
Troubleshooting
3. CLV does not respond to an
external signal that ends the reading
pulse (sensor input, serial interface)
Trigger mode: one external sensor
•
Incorrect end of reading pulse para-
meterized in the CLV.
•
No signal from the sensor at the
"Sensor“ switching input.
Trigger mode: two external sensors
•
If "IN 4“ switching input is choosen as
trigger source for end of reading interval:
no sensor connected or polarity inverted.
•
The object does not pass the reading
pulse sensor for trigger start with the
conveyor running.
Trigger mode: serial interface
•
Incorrect command used.
•
Laser timeout exceeded.
•
In the "CLV-Setup" program:
choose the D
EVICE
CONFIGURATION
tab,
click the R
EADING
T
RIGGER
P
ARAMETERS
button.
E
ND
OF
R
EADING
I
NTERVAL
section: is "gen-
erated by Trigger Source" selected?
•
Check wiring of the sensor
(
).
Measure output signal of the sensor.
•
Connect sensor to the "IN 4“ switching
input. Check wiring of the sensor (see
Chapter 5.5.7 Connecting the "Sensor"
switching input, Page 5-17).
Choose the D
EVICE
CONFIGURATION
tab,
A
SSIGNMENT
OF
I
NPUTS
section: is "IN 4"
selected (active high or active low)?
Click the R
EADING
TRIGGER
P
ARAMETERS
but-
ton, E
ND
OF
R
EADING
I
NTERVAL
section: is
"generated by IN 4“ selected?
•
Install reading pulse sensor in front of the
CLV in conveying direction.
Chapter 4.4.2 Mounting the ex-
ternal reading pulse sensor, Page 4-10
•
See
2. Remedy
•
See remedy in
.
4. CLV does not terminate the reading clock
or terminate the clock too late
Reading mode "OTS-trigger" (in combi-
nation with OTC 400):
•
Incremental encoder not connected or
connected to the wrong switching input
of the OTC 400.
•
Incorrect reading mode parameterized
in the CLV.
•
Incorrect resolution of incremental en-
coder parameterized in the CLV.
•
No conveyor motion (CLV does not re-
ceive incremental signals).
•
Laser timeout exceeded.
•
Connect incremental encoder to the
correct switching input. Check wiring.
Check the output signal of the incremen-
tal encoder.
•
In the "CLV-Setup" program:
Choose the D
EVICE
CONFIGURATION
tab,
R
EADING
T
RIGGER
S
OURCE
section: "OTS
trigger" selected?
D
ISTANCE
PER
ENCODER
PULSE
section:
value selected?
•
In the "CLV-Setup" program:
D
ISTANCE
PER
ENCODER
PULSE
section:
value correctly selected?
•
Start the conveyor.
•
See remedy in
.
Malfunction
Possible cause
Remedy
Table 8-6: Troubleshooting: reading trigger errors in Reading mode (CLV in stand-alone configuration) (contd.)