SICK CLV490 Instrukcje Operacyjne Pobierz pdf (Strona 113)

Operating Instructions Chapter 8

CLV 490 Bar Code Scanner

8 008 796/0000/25-06-2002

8-11

Troubleshooting

8.5.2 Malfunctions in Reading mode: reading trigger errors

Check whether the "Device Ready" LED lights up.

If the LED does not light, see

Table 8-5, Page 8-10.

Malfunction Possible cause Remedy

1. Trigger mode:

Sensor input (external sensor).

The CLV cannot be clocked:

– the "Sensor" LED does not

light up

– the scan lines don’t

appear

•

Sensor not connected or connected to

incorrect switching input.

•

If sensor supplied by CLV: sensor not

connected to ground potential

•

Incorrect reading pulse source para-

meterized in the CLV

•

Photoelectric switch not aligned with the

reflector (photoelectric proximity switch/

inductive sensor not dampened)

•

Connect sensor to "Sensor" switching

input. Check sensor wiring (see

Fig. 5-4,

Page 5-16

). Measure output signal on

sensor.

•

Insert jumper between pin 5 and pin 15

•

In the "CLV-Setup" program: choose the

EVICE

ONFIGURATION

tab, R

EADING

RIG

GER

Mode section: Sensor input select-

ed? (active high: reading pulse starts

when power applied)

•

Align sensor.

Check functioning

2. Trigger mode:

Serial interface

The CLV cannot be clocked:

– the Sensor LED does not light up

– the scan line does not appear

•

Incorrect reading pulse source para-

meterized on the CLV

•

The CLV is not receiving any command

strings to start the reading interval on the

data interface

•

In the "CLV-Setup" program: choose the

EVICE

ONFIGURATION

tab, R

EADING

RIG

GER

Mode section: is serial interface se-

lected? S

ERIAL

NTERFACE

section: is

trigger type correct?

•

Check data connection to host. In the

"CLV-Setup" program: choose the H

OST

NTERFACE

tab.

In D

ATA

ORMAT

section: are the correct

interface type (hardware) and data for-

mat selected?

NTERFACE

ROTOCOL

section: are the cor-

rect start and stop characters selected?

Use the "CLV-Setup" program to check

the host command strings: choose

UXILIARY

NTERFACE

tab. Choose

ONITOR

OST

NTERFACE

function.

See

Chapter 6.5.8 Monitor Host Inter-

face, Page 6-29

Download temporarily to the CLV.

3. CLV does not respond to an

external signal that ends the reading

pulse (sensor input, serial interface)

Incorrect end of reading pulse para-

meterized on the CLV

In the "CLV-Setup" program:

choose the D

EVICE

CONFIGURATION

tab, click

the E

DIT

READING

RIGGER

button.

EADING

NTERVAL

section: is generat-

ed by Trigger Source selected?

Table 8-6: Troubleshooting: reading trigger errors in Reading mode

1 2 ... 108 109 110 111 112 113 114 115 116 117 118 ... 213 214

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