SICK CLV490 Instrucciones de operaciones descargar pdf (Pagina 158)

Chapter 8 Operating Instructions

CLV490 Bar Code Scanner

Troubleshooting

1. The "Read Result" LED default setting:

Good Read) does not light up at the end

of the reading pulse:

– continued –

• The bar code is tilted excessively with

respect to the scan line.

• The reading angles at which the bar code

appears to the CLV490 are too large.

• Bar code in total reflection zone

• Evaluation criteria for bar code

incorrect.

• Bar code quality inadequate.

• In the "CLV-Setup" program: choose the

CODE CONFIGURATION tab, DECODER section:

choose SMART decoder.

Download all changes to CLV490!

• In the "CLV-Setup" program: choose the

CODE CONFIGURATION tab, DECODER sec-

tion: choose Standard decoder.

Download temporarily to CLV490!

Start P

ERCENTAGE EVALUATION, choose

DISTANCE CONFIGURATION. Monitor read-

ing quality (reading quality > 70 %!). If

necessary, realign CLV490 and/or re-

configure distance configuration. If ok,

choose SMART D

ECODER. Download to

CLV490.

• Optimize CLV490 alignment (scan line

should strike the bar code at a skew of

approx. 15°). Use the "CLV-Setup" pro-

gram to check the quality of the read.

Start PERCENTAGE EVALUATION. See

Chapter 6.5.2 Percentage evaluation,

Page 6-41

• In "CLV-Setup" program: choose the

CODE CONFIGURATION tab, SYMBOLOGIES

section. Enable all code types (except

Pharmacode), set code lengths to F

REE.

Download temporarily to CLV490!

Start P

ERCENTAGE EVALUATION. Code type

and length are displayed in the reading

result. Enable recorded code type in the

ODES section and disable all other

types. Enter the code length under FIXED

on the code type tab. Download to

CLV490!

• Check: sufficient blank zones present?

Print contrast adequate? Specified print

tolerances exceeded?

In the "CLV-Setup" program: choose

EADING CONFIGURATION tab, READING PARA-

METERS section, START/STOP RATIO: is Auto

selected?

Perform read with reference code.

2. The CLV490 is not transferring any rea-

ding results to the host

• Reading pulse is not functioning

correctly.

• Wiring fault in data connection.

• Voltage level incorrect.

• Host interface in CLV490 parameterized

incorrectly.

• See Chapter 8.5.2 Malfunctions in Read-

ing mode: reading trigger errors,

Page 8-10

• Check wiring as shown in Fig. 5-3,

Page 5-20

• Measure voltages

• In "CLV-Setup" program: choose HOST

NTERFACE tab, DATA FORMAT section. Are

the interface type (hardware) and data

format correct? Check settings in INTER-

FACE PROTOCOL section.

Malfunction Possible cause Remedy

Table 8-8: Troubleshooting: result output errors in Reading mode (CLV490 in stand-alone configuration) (contd.)

1 2 ... 153 154 155 156 157 158 159 160 161 162 163 ... 269 270

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SICK CLV490 Instrucciones de operaciones Pagina 158

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