SICK CLV 41 Series Operating Instructions Manual

CLV 41x Bar Code Scanner

Standard line

O PERATING INSTRUCTIONS

CLV 41x Bar Code Scanner

General

Software version

Operating Instructions

These Operating Instructions describe the procedure for installing and setting up the CLV 41x using the default settings defined at the factory and the steps required to replace the device (transferring the application-specific parameter set). The CLV 41x is simply referred to as the CLV in the sections below.

Software Function Version

CLV Setup User interface (Windows-based) from V 1.1.0

CLV Setup Help Online help (HTML) from V 1.0.1

FCC class

This appliance meets FCC class B, subject to the FCC-regulations, paragraph 15.

Remark: To meet the FCC-regulations, the cables have to shielded including connections from shielding to the connector casings.

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Operating Instructions

Contents

CLV 41x Bar Code Scanner

Section Page

1. Intended use................................................................................................................... 4

2. Scope of delivery .......................................................................................................... 4

3. System requirements .................................................................................................. 4

4. Laser protections ......................................................................................................... 4

5. Design ............................................................................................................................... 5

6. Beeper .............................................................................................................................. 5

7. Function of the LEDs ................................................................................................... 6

8. Electrical installation

8.1 Pin assignment of connector ...................................................................................... 6

8.2 Supply voltage .................................................................................................................. 7

8.3 Connecting the CLV to the AMV/AMS 40 .............................................................. 7

8.4 Connecting the PC to the CLV .................................................................................... 8

8.5 Connecting the interfaces ............................................................................................9

9. Assembly

9.1 Securing the CLV .......................................................................................................... 13

9.2 Mounting the polling reflector ................................................................................. 15

9.3 Mounting the external reading pulse sensor (alternative) ............................ 15

10. Power on and setup

10.1 Step-by-step setup instructions ............................................................................ 17

10.2 Default settings ............................................................................................................ 18

10.3 Profile programming ................................................................................................... 19

10.4 AutoSetup (code configuration) ............................................................................ 22

10.5 Parametrization with the CLV Setup software .................................................. 23

10.6 Operating modes/functions .................................................................................... 28

11. Replacing a CLV 410

11.1 Transferring the application-specific parameter set ..................................... 30

11.2 Disassembly and environmentally-friendly disposal of the CLV ............... 31

12. Troubleshooting

12.1 Self-monitoring function............................................................................................ 32

12.2 Error messages ........................................................................................................... 32

12.3 Causes of error and troubleshooting .................................................................. 32

13. Maintenance ................................................................................................................36

14.

Scannable bar codes (samples) ...................................................................37

15. Additional safety instructions (laser protection) ........................................... 37

16. Reading field diagrams ............................................................................................ 38

17. Technical data .............................................................................................................41

18. Dimensioned diagrams ............................................................................................ 42

19. Overview: supplementary technical documentation .................................... 43

20. Index ................................................................................................................................44

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CLV 41x Bar Code Scanner

1. Intended use

2. Scope of delivery

Operating Instructions

The CLV 41x with fixed focus is used to detect and decode bar codes in a stationary reading station automatically, e.g. on objects on a conveyor belt. For this purpose, it must be mounted securely on the station and supplied with an operating voltage of 4.5...30 V DC to IEC 742. The CLV outputs the read result via its host inteface to a higher-level computer for further processing.

The CLV 41x is supplied with the following:

• two polling reflectors for automatic reading pulse generation

• a note on device (yellow) with power connection diagram

• an additional set of laser warning labels (Class 2) in German and French

One or more of the following, depending on the number of devices ordered:

• CLV 41x Operating Instructions, in German and English

• a CD-ROM with the CLV Setup program for Windows™, the online CLV Setup Help

(HTML) software and the browser Iview™

• a fold-out card with 12 printed profile bar codes

3. System requirements

4. Laser protection

The following are required to set up and operate the CLV:

• a SICK AMV 40-011 Connection Module (no. 1 017 132) or AMS 40-013

(no. 1 017 13 5 ) Alternatively, an external power supply unit with an output voltage of 4.5 ... 30 V DC to IEC 742 (functional extra-low voltage) and min. 3 W power output

• a PC with Windows-based GUI (Windows 3.1™, Windows 95™ or Windows NT™) and serial port (COM x)

• an HTML browser (e.g. Netscape™) to use the online help

• an RS 232 data connection cable (e.g. no. 2 020 319).

Alternatively, the programming adapter for the LCV 410 (order no. available on request) to connect the PC between the CLV 410 and AMV/AMS 40 as well as an RS 232 data connection cable (e.g. no. 2 014 054) from the programming adapter to the PC

• a 24 V DC ±20% operating voltage for the AMV 40 or 230 V AC (115V) ±10% for the AMS 40

• a suitable sensor, e.g. a photoelectric switch, if the reading pulse is to be supplied externally via the switching input on the CLV

Laser radiation!

The radiation emitted by the laser diode (red or IR light) on the CLV 410 is harmful to the human eye. For this reason, do not look directly into the laser beam.

WARNING!

Opening the housing while the device is in operation does not prevent the laser diode from being activated by the reading pulse. The maximum output power of the laser beam at the reading window is 1 . 2 mW. The CLV, therefore, is assigned to protection class 2.

Laser radiation, do not stare into the beam, class 2 laser product. Max. output radiation: 1 . 2 mW (223

µµ

µs), emitted wavelength: 670 nm

µµ

See Section 15 for further safety instructions!

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Operating Instructions

5. Design

CLV 41x Bar Code Scanner

Fig. 1. CLV 41x design

Key:

! D Sub HD connector, 15-pin " Tapped blind hole M 4, depth: 6 mm

§ Reading window $ Laser warning label % Connection cable & Sound opening of beeper (covered) / Function LEDs

6. Beeper function

The beeper successfully or indicates a malfunction. The sound opening is located below the LED label on the rear, narrow side of the device (Fig. 1).

Operating mode/function Beeper function Sequence

Reading mode

Percentage Evaluation The beeper confirms output of the reading result after every 100 reads 1. 1 tone

AutoSetup

Profile programming

Self-test The beeper signals successful completion of the self-test after power-up 1 . 1 tone

After a laser timeout of 10 minutes (default), the beeper indicates with one long tone that the laser diode has been switched off and that the reading pulse has been deactivated automatically.

Table 1

1. The beeper confirms the start of reading mode when the device is switched on 1. 2 tones after the wait time for teach-in mode has elapsed

2. The beeper confirms a good read (default setting) and output of the read result 2. 1 tone

1. The beeper confirms successful read of the presented profile bar code 1. 1 tone for the start or end of AutoSetup

2. The beeper confirms successful read of the application-specific bar code 2. 1 tone

3. The beeper signals unsuccessful read of the application-specific bar code 3. 3 tones after approx. 35 seconds

1. The beeper confirms successful read of the presented profile bar code 1. 1 tone

2. The beeper confirms the start of reading mode 10 s after the last profile 2. 2 tones bar code has been read

6either provides an acoustic confirmation that a function was executed

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The beeper can be assigned a different result indicator function and the beeper

TIP:

volume changed (default: low) by means of the EDIT RESULT OUTPUTS field on the D

EVICE CONFIGURATION card of the operating interface.

In these operating instructions, it is assumed that the beeper is operated with the default settings.

CLV 41x Bar Code Scanner

Operating Instructions

7. Function of the LEDs

The LED function indicators 7 are located on the rear, narrow side of the device (Fig. 1).

LED Color Function

Device Ready green Indicates that the the CLV is ready (Reading mode). Lights up when the device is switched on, after

the self-test has been successfully completed and when the wait time for teach-in mode has expired. The LED extinguishes when the device is switched to a different operating mode.

Result green Function depends on the operating mode of the scanner:

• In Reading Mode or Teach-in Mode, the LED indicates a successful read (good read). If the match code comparison is activated, it lights up if the bar code read matches the specified match code(s).

Device Ready Result Laser On

Data

Laser On green Lights up when the laser diode is activated for reading the bar code.

Data yellow Flickers when the CLV is transferring data to the host on the serial data interface

The LED lights up constantly until the start of the next reading pulse

• In Percentage Evaluation with 100 scans per reading interval, the LED indicates the trend in the read quality as follows:

LED off good read rate < 30% LED blinks (frequency 2 Hz) good read rate 30%...70% LED blinks (frequency 5 Hz) good read rate 70% ... 90% LED lights up constantly good read rate > 90%

• The LED lights up briefly when set to AutoSetup before it starts to scan the presented bar code

The laser diode is activated and deactivated by the reading pulse. The laser diode is activated constantly in Percentage Evaluation and Free-running modes. In Reflector Polling pulse mode, it is activated in accordance with the scanning frequency at every 20th scan (LED flickers). The scan line(s) are dimmed (with red-light scanner only)

Table 2

8. Electrical installation

8. 1 Pin assignment of connector

Pin Signal Function Wire colors

1 DC +4.5...+30 V Supply voltage red

2 Sensor 2 Switching input teach-in (match code 1) purple

3 Result 3 Switching output (to PLC) yellow

4 Term RS 422 Termination for data interface 1 red/black

5 GND Ground black

6 RD+ (RS 422/485) Data interface 1 (receiver) light blue

7 RD- (RS 422/485) Data interface 1 (receiver) blue

8 TD+ (RS 422/485) Data interface 1 (transmitter) gray/turquoise

9 TD- (RS 422/485) Data interface 1 (transmitter) green

10 RxD (RS 232) Data interface 2 (receiver) gray

11 TxD (RS 232) Data interface 2 (transmitter) pink

12 Result 1 Switching output (to PLC) brown

13 Result 2 Switching output (to PLC) orange

14 Sensor 1 Switching input for ext. reading pulse white

15 SensorGND Common ground (all inputs) black/white

– – Shield white/green

1) Cable with 15-pin D Sub HD socket and open cable end

5 6

of cable no. 6 010 137

Table 3

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Operating Instructions

CLV 41x Bar Code Scanner

8. 2 Supply voltage

The CLV 41x requires a supply voltage of 4.5 ... 30 V DC to IEC 742 (safety extra-low voltage, listed class II power supply).

8. 3 Connecting the CLV to the AMV/AMS 40 (Connection Module)

Before it can be used in the reading station, the CLV must be connected to the AMV/AMS 40 Connection Module and the host/PLC/sensor as shown in Fig. 2.

CLV 41x

Photoelectric switch

Fig. 2. Block diagram: connecting the CLV in the reading station via the AMV/AMS 40 Connection Module

Scanner

Decoder

Interface

Sensor 1

Result 1

Result 2

Result 3

Data

DC 24 V

Sensor 1

TIP:

A description of the basic wiring and configuration of the Connection Module is

AMV/AMS 40

Connection

Module

Result 1

Result 2

Result 3

Data

PLC

24 V DC (AMV) 230 V AC (AMS)

provided in the AMV/AMS 40 Operating Instructions (no. 8 008 292) supplied with the module.

Ø Mount the AMV/AMS 40 as close as possible to the CLV

HOST/PLC

Optional cable

Ø Connect the CLV to the 15-pin D Sub HD socket of the AMV/AMS 40

The connection cable can be extended with extension cable no. 6 010 075 (2 m).

Ø Do not exceed the max. cable lengths (host interface) between the CLV and the

host/PLC (see 8.5.1 Connecting the host interface)

Ø Connect a suitable, external reading pulse sensor via the AMV/AMS 40 if reflector

polling (default setting) is not to be used for automatic reading pulse generation

Ø If an external power supply unit is used instead of the AMV/AMS 40, it must be

able to provide a continuous output of at least 3 W and must comply with IEC 742 (functional extra-low voltage). The core cross-section for the CLV power supply

(pins 1 and 5) must be at least 0.09 mm

Use cable no. 6 010 137 (open wire ends) to connect the CLV. See Table 3 for wire color assignment

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CLV 41x Bar Code Scanner

Operating Instructions

8. 4 Connecting the PC to the CLV

A PC with Windows™ must be connected to the RS 232 port on the CLV to operate and parametrize the device. There are two ways of connecting the PC:

1. Connect the PC COM x port to the internal terminals on the AMV/AMS 40

Ø Switch off the power supply to the Connection Module and the PC and connect

the PC and Connection Module as described in the AMV/AMS 40 Operating Instructions

Ø Disconnect the CLV from the host if they are already connected (RS 232

interface)

Ø Switch on the PC and AMV/AMS

Ø Copy the operating and parametrization software CLV Setup and the online help

CLV Setup Help to the hard disk of the PC and install the software accordingly

Ø Set the communication parameters in CLV Setup for port COM x (S

ERIAL PORT

under OPTIONS) as shown in Table 4 (Default setting on CLV)

2. Connecting the PC port COM x via the optional programming adapter

e.g. cable order no. 2 014 054

PC with Windows

AMV/AMS 40

Connection

Module

CLV 41x

Programming adapter

to AMV/AMS 40

Host/PLC

to PC

LED for switching outputs

Programming adapter (order no. available on request)

5 6

510 61

Term

1 10

15 611

to CLV 41x

Clock

Host

123

Button

Fig. 3. Connecting the PC to the optional programming adapter

Ø Switch off the power supply to the Connection Module and PC

Ø Disconnect the CLV connector from the Connection Module (Fig. 3)

Ø Connect the 15-pin cable connector of the programming adapter to the socket on

the AMV/AMS 40. Connect the free 15-pin socket of the programming adapter to the CLV connector. The adapter is supplied with power from the Connection Module

Ø Connect the PC port COM x to the 9-pin connector of the programming adapter via

an RS 232 cable (e.g. no. 2 014 054)

Ø Set the slide switch on the programming adapter to TERM (the CLV is then

disconnected from host and communicates with the PC only). The PC is disconnected from the CLV when the switch is set to HOST

Ø Switch on the PC and AMV/AMS

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Operating Instructions

CLV 41x Bar Code Scanner

Parameter Value

COM port freely selectable

Baud rate 9600 bit/s

Data bits 8

Parity none

Stop bit 1

Table 4

Ø Copy the operating and parametrization software CLV Setup and the online help

CLV Setup Help to the hard disk of the PC and install the software accordingly

TIP:

CAUTION

Ø Set the communication parameters in CLV Setup for port COM x (S

PTIONS) as shown in Table 4 (default setting of the CLV)

ERIAL PORT under

With the CLV pulse mode “Sensor Input“, the reading pulse can be triggered with the Clock button on the programming adapter. For this purpose, choose the pulse mode via the E

DIT READING PULSE field on the DEVICE CONFIGURATION card of the user interface

and download it to the CLV.

8. 5 Connecting the interfaces

All of the interfaces are routed via the 15-pin D Sub HD connector À (Table 3).

8. 5. 1 Connecting the host interface

The CLV is equipped with two host interfaces (RS 232 and RS 422/485). One of these must be selected for data communication with the host/PC. If the RS 232 interface is not connected to the host, it can be used exclusively to monitor data traffic on the parallel RS 422/482 interface.

The internal modules of the CLV may be damaged irreparably if the data interface is connected incorreclty.

Ø Connect the host interface of the CLV to the host in accordance with the EMC

requirements using shielded cables(Fig. 4)

Ø To prevent interference, do not lay the data cables over a long distance parallel

to the power supply and motor cables, e.g. in cable ducts

Ø Apply the shield on one side (SICK recommendation)

Recommended max. cable lengths between the CLV and host:

Interface type Transmission rate Distance from host

RS 232 up to 19 200 bits/s max. 10 m

38 400 ... 57 600 bits/s max. 3 m

RS 422/485

1) with appropriate line termination

Table 5

max. 38 400 bits/s max. 1 200 m max. 57 600 bits/s max. 500 m

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CLV 41x Bar Code Scanner

Operating Instructions

RxD

RS 232

CLV 410

RS 422

CLV 410 Host

RS 485 (SICK Network): Connection diagram available on request

Fig. 4. Connecting the host interface

TxD

GND

RD+ RD– TD+ TD– GND Term

6 7 8 9 5 4

TxD

RxD

GND

TD+ TD– RD+ RD– GND

Host

Terminal assignment AMV 40-011/AMS 40-012, -013:

RxD

TxD

GND

R+

R-

T+

T-

GND

T. 10

T. 11

T. 5

T. 6

T. 7

T. 8

T. 9

T. 5

TIP:

IMPORTANT

The default communication parameters of the CLV host interface are as follows:

Parameter Value

Data transmission rate 9600 bit/s

Data bits 8

Parity none

Stop bit 1

Protocol Sick (start character: STX, stop character: ETX, no

repeat request: none, timeout: 50 ms)

Table 6

The parameters can be changed in the DATA FORMAT and INTERFACE PROTOCOL fields on the H

OST INTERFACE card of the user interface.

By reading in profile bar code nos. 11 and 12 (Section 10.2 Default setting), you can define the above default settings temporarily with a different parameter set to allow the PC to communicate with the CLV.

8. 5. 2 Connecting the functional interfaces

Sensor 1 switching input

In order to trigger a reading process, the CLV requires a suitable clock pulse in Reading mode that signals the presence of a conveyor object in the reading field. The clock pulse generates the reading interval (time window for evaluation) internally in the CLV. In the default setting, the reading pulse is supplied by means of internal, continuous reflector polling (see Section 9.2).

If an external sensor (e.g. photoelectric switch, switch) is to notify the CLV of the presence of a conveyor object, the following steps must be performed:

Ø Connect the sensor to the CLV as shown in Fig. 5

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Operating Instructions

CLV 41x

CLV 41x Bar Code Scanner

Ø Set the trigger source to SENSOR INPUT via the EDIT READING PULSE field on the DEVICE

CONFIGURATION card of the user interface and download the parameter settings to the CLV

An external clock pulse is not required for Percentage Evaluation operating mode.

Terminal assignment

DC 24V

PNP sensor

Switch

AMV 40-011/AMS 40-012 ,-013:

DC 24V

1K5

6K8

1K5

Sensor 1

Sensor

Sens GND

GND

DC 24V

GND

VS= +4.5...+30 V DC

Fig. 5. Connecting the Sensor 1 input to an external reading pulse sensor

Sensor 1 switching input

Switching Start internal reading interval when input characteristics live (active high; default setting)

Properties opto-decoupled, non-interchangeable

Electrical values Low: -1V ≤ Vin ≤ +1 V High: -28 V ≤ Vin ≤ -3 V

-0.3 mA ≤ Iin ≤ +0.3 mA -18 mA ≤ Iin ≤ -1.4 mA

Table 7

SENS

SGND

GND

T. 18

T. 14

T. 15

T. 5

+3 V ≤ V +1.4 mA ≤ Iin ≤ +18 mA

≤ +28 V

Sensor 2 switching input

This input is used exclusively to teach in match code 1. The teach-in procedure is an alternative to entering the match code on the keyboard via the C field on the DEVICE CONFIGURATION card of the user interface. In order to teach in the match code, the input is connected briefly to the power supply via a switch (Fig. 6). This can also take place in the Connection Module.

CLV 41x

DC 24V

1K5

6K8

1K5

Electrical values and properties: as Sensor 1 (see Table 7)

VS= +4.5...+30 V DC

DC 24V

Sensor 2

Sensor

Sens GND

SensGND

GND

DC 24V

Switch S

GND

ODE COMPARISON

Terminal assignment AMV 40-011/AMS 40-012, -013:

Sensor 2

SGND

GND

T. 18

T. 2

T. 15

T. 5

Note: Instead of the bridge the “GND-SGND“ Jumper can be set in the AMV/S 40.

Fig. 6. Connection of Sensor 2 input for teaching in match code 1

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CLV 41x Bar Code Scanner

Operating Instructions

Ø Procedure for teaching in match code 1

Prerequisite: CLV is in Reading mode and the current parameter set (if

application-specific) is stored permanently.

Step Action Response from CLV

1 Switch off CLV –

2 Close switch S and CLV switches to Reading mode and activates

switch on CLV again teach-in mode for the match code.

3 Open switch S CLV in teach-in mode and searches match

code.

4 Position match code at appropriate –

distance (see 16. Reading field diagrams)

5 Trigger set reading pulse CLV reads the match code.

The Result LED lights up to confirm successful read (good read; default setting). Beeper emits a short acoustic signal.

6 Close switch S again CLV stores the match code and its code type

in the valid parameter set and permanently in the EEPROM. From this point on, it compares each match code read with the match code taught in.

1) We recommend that you connect the PC with the CLV Setup interface to check the read result

Table 8

Notes:

1. In order to replace the match code taught in in this way with a different match code, you can repeat steps 3 to 6 without having to switch off the CLV.

2. If match code 1 is set using the teach-in method, it must not be modified with the user interface (or command strings) until the CLV is switched off again. The methods used to set the match code cannot be mixed. This does not affect match code 2.

Result 1 to Result 3 switching outputs

The three outputs (Fig. 7) can each be assigned different result functions. When the associated result occurs, the corresponding output becomes live for the selected pulse duration at the end of the reading interval. The pulse duration can be set separately for each output.

„Result 1“

CLV 41x

Configuration of Result 2 (pin 13/terminal 13) and Result 3 (pin 3/terminal 3): as Result 1 output

Fig. 7. Connection example: Result 1 output

Terminal assignment AMV 40-011/AMS 40-012, -013:

Result 1

GND

T. 12

T. 5

VS= depending on operating voltage applied (+4.5...+30 V DC)

Pulse duration: 10 ms ... 9.9 s or static (to end of next reading pulse)

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Operating Instructions

9. Assembly

CLV 41x Bar Code Scanner

Result 1 to Result 3 switching outputs

Switching PNP-switching to supply voltage V characteristics

Properties short-circuit + temperature-protected, not electrically isolated from V

Function assignment Result 1: Device Ready, polarity: not inverted

(default setting) Result 2: Good Read, polarity: not inverted

Result 3: No Read, polarity: not inverted Pulse duration: 100 ms

Electrical values 0 V ≤ V

Out

Table 9

The function assignment, pulse duration and polarity of the signals can be modified

TIP:

via the E

DIT RESULT OUTPUTS field on the DEVICE CONFIGURATION card of the user interface.

≤ V

Out

≤ 600 mA

Guaranteed: V

≤ VS − 1.5 V at I

Out

The Result LED is not affected by this and lights up in Reading mode for a Good Read until the end of the next reading pulse.

9. 1 Securing the CLV

≤ 600 mA

Out

CAUTION

The two fastening threads (2, Fig. 1) on the bottom, narrow side of the housing are used to secure the CLV. The thread dimensions are shown in Section18. Dimensioned diagrams.

Risk of damage to the housing

The max. depth of engagement of the two M 4 tapped blind holes is 6 mm from the housing surface. Do not exceed this depth.

Mounting accessories

The CLV can be easily secured to the base to suit the relevant application using one of the two optional mounting brackets (Fig. 8). This facilitates precise adjustment in two planes. The dimensions of these brackets are shown in Section 18. Dimensioned drawings. The elongated holes in the brackets allow the CLV to be adjusted with a freedom of rotation of approx. ± 15°.

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Mounting bracket (small) no. 2 020 077

Fig. 8. Mounting example: securing the CLV using the mounting bracket (accessory)

Aligning the CLV with the bar code

The alignment between the CLV and line or raster scanner depends on the application. The basic alignment between the two scanning methods and the conveyor object is shown in Fig. 9.

CLV 41x Bar Code Scanner

Operating Instructions

Line scanner Raster scanner

Fig. 9. Scanning method alignment relative to the bar code and conveyor direction

Reading angle and distance

When mounting the device, ensure that all of the possible reading angles at which the bar code can be positioned relative to the scan line are taken into account. Fig. 10 shows this using a line scanner as an example. The reading window and code should be almost parallel, whereby total surface reflection (see below) should be avoided.

Reading range

α: Tilt β: Pitch γ: Skew

Reading distance

Fig. 10. Mounting example of CLV with line scanner: reading angles taken into account

The following angle limits should not be exceeded (CLV):

Angle Tilt α Pitch β Skew γ

Limit value 15° (depening on code print) 45° 45°

Table 10

When selecting the mounting location for the device, the limit values of the reading range for the selected bar code resolution and the useful aperture angle (max. 60° with front light emission) must be taken into account. See also Section 16. Reading

field diagrams.

Avoiding surface reflection

If the reading beam strikes the surface of the bar code vertically, reflection interference may be caused when the returned light is received.

Ø Mount the CLV with front light emission (a) in such a way that the scan line(s) strike

the bar code at an angle less than approx. 15° from the vertical reference (Fig. 11).

Ø The CLV with lateral light emission (b) must be mounted flush so that the scan line

is emitted at an angle less than 105° relative to the housing.

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Operating Instructions

105°

CLV 41x Bar Code Scanner

Line scanner (Top view)

105°

a) CLV with front light emission b) CLV with lateral light emission

(flush mounting)

Fig. 11. Preventing surface reflection by rotating the CLV from the perpendicular

Count direction of code position CP

The CLV determines the position of the bar code within the scan line (CP value), Fig. 12. This can be used to separate several identical bar codes (identical code type, length and content) and output them accordingly.

100

Fig. 12. CLV 41x: Count direction of the code position CP

9. 2 Mounting the polling reflector

In order to generate the reading pulse automatically using internal reflector polling (default setting), one of the two polling reflectors supplied (special bar code) must be mounted opposite the CLV behind the conveyor section.

Ø Note the maximum ranges of the two reflectors (Fig. 13)

Ø Mount the polling reflector (self-adhesive) opposite the CLV (in the alignment line)

in such a way that the CLV can view the reflector freely in the gaps between the conveyor objects and can scan it reliably (center of scan line). The scan line of the CLV should scan the code lines of the polling reflector vertically.

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Ø Check the polling reflector installation for 100% read quality using the

Percentage Evaluation mode in the T

ERMINAL option of the user interface (see

Section 10.6). The CLV outputs the code content of the polling reflector and signals REPO as the code type.

Function of reflector polling

In Reflector Polling pulse mode, the CLV activates the laser diode with every 20th scan and checks whether it detects the reflector:

- if the reflector is still detected, the CLV repeates the procedure after the 20th

scan

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SICK CLV 41 Series Operating Instructions Manual

Specifications and Main Features

Frequently Asked Questions

User Manual