Baumer DENEX Edge Detector II Manuale utente

USER MANUAL

FOR DENEX VERSIONS: 2010

DENEX

Edge Detector II

FLDM 180C1103/S42

User Manual DENEX Edge Detector II 2/20 Baumer Electric AG

Version 2013-02, V1.6 www.baumer.com Frauenfeld, Switzerland

READ THIS FIRST

Before installing, operating, opening, or applying the DENEX Edge Detector II sensor, read

and understand the contents of this manual.

Always observe the following warnings and cautions when operating or working on the

equipment.

CAUTION

Use of controls or adjustments or performance procedures other

than those specified herein may result in hazardous radiation exposure.

Do not stare into laser beam.

The DENEX Edge Detector II must be applied, installed, adjusted, and maintained only by

qualified personnel who are familiar with the operation of the unit and its associated

components.

User Manual DENEX Edge Detector II 3/20 Baumer Electric AG

Version 2013-02, V1.6 www.baumer.com Frauenfeld, Switzerland

CONTENTS

RECEIVING AND HANDLING _________________________________________4

BASIC FUNCTION ___________________________________________________4

INSTALLATION______________________________________________________5

3.1 General Precautions____________________________________________________ 5

3.2 Mechanical Installation _________________________________________________ 5

3.3 Electrical installation ___________________________________________________ 6

3.3.1

Power Connection _______________________________________________6

3.3.2

Output Signal ___________________________________________________6

SOFTWARE FUNCTIONS_____________________________________________8

4.1 Blocking Function______________________________________________________ 8

4.2 DIP-Switch Settings ____________________________________________________ 9

LED INDICATORS __________________________________________________10

5.1 The POWER-LED______________________________________________________ 10

5.2 The LASER OFF-LED __________________________________________________ 10

5.3 The OUTPUT-LED _____________________________________________________ 10

TECHNICAL SPECIFICATIONS ______________________________________11

ACCESSORIES_____________________________________________________12

LASER SAFETY ____________________________________________________12

TROUBLESHOOTING _______________________________________________13

9.1 Maintenance at Regular Intervals _______________________________________ 14

RETURNING EQUIPMENT _________________________________________15

WARRANTY ______________________________________________________15

APPENDIX _______________________________________________________16

Supplements _____________________________________________________17

User Manual DENEX Edge Detector II 4/20 Baumer Electric AG

Version 2013-02, V1.6 www.baumer.com Frauenfeld, Switzerland

1 RECEIVING AND HANDLING

Upon delivery of the equipment, thoroughly inspect the shipping containers and contents

for indications of damage incurred in transit. If any concealed loss or damage is

discovered, notify the forward agent.

A complete DENEX Edge Detector II shipping box should contain:

1 DENEX Edge Detector II

1 Female Connector, Amphenol Tuchel T3476 001

1 Installation Manual

2 BASIC FUNCTION

The DENEX Edge Detector II is a non-contact sensor, which counts all kinds of printed

products on an overlapped stream. It senses the leading edge and generates one output

pulse for every product. Product thickness from a single folded sheet up to a maximum

stream thickness of 70 mm can be sensed without adjustments.

The laser diode that is used produces a visible and very intensive and focused light beam

that is projected onto the stream. The reflected light from the spot is collected by two light

sensitive detectors P and R and is analyzed by a microprocessor. The difference in

reflected light that occurs, when the light spot is temporarily hidden behind the passing

product edge provides the basic data for the sensor to determine a count output pulse.

Figure 2.1 The principle of operation

The microprocessor controlled DENEX Edge Detector II can be adapted to different

operating modes by changing DIP-switches, which can be reached from outside, via the

lid.

User Manual DENEX Edge Detector II 5/20 Baumer Electric AG

Version 2013-02, V1.6 www.baumer.com Frauenfeld, Switzerland

3 INSTALLATION

3.1 General Precautions

The DENEX Edge Detector II should be installed in an environment where:

1. The equipment ambient temperature does not exceed 40º C.

2. The equipment atmosphere is free from highly flammable or combustible vapors,

corrosive chemical flumes, oil vapor, steam, excessive moisture and particles.

Avoid mounting the unit in places with strong vibrations since they can produce miscounts,

especially when thin products are counted. Make sure that the mounting bracket and

means used are rigid to withstand vibrations.

3.2 Mechanical Installation

The sensor should normally be mounted on a flat conveyor. It is possible to mount the

sensor on a bent part of the conveyor according to figures below. Do not mount according

to Figure 3.2.1 (right) since it will deteriorate the function of the unit.

YES NO

Figure 3.2.1 Mounting on a non-flat conveyor.

The sensor should be mounted parallel to, and at a distance of 100 mm from the conveyor.

When the laser does not hit a product, it should hit a light, matte surface at 100 - 150 mm

below the sensor. The reference surface must be smooth. If the surface is wrinkled or

coarse, vibrations can cause error pulses. Also, make sure that dust and paper pieces do

not stay on the surface, since they could also create output pulses. Make sure that the

laser beam is properly stopped by this surface, so that it is impossible for a user to be

exposed to the laser beam.

User Manual DENEX Edge Detector II 6/20 Baumer Electric AG

Version 2013-02, V1.6 www.baumer.com Frauenfeld, Switzerland

DENEX

Laser CopySensor™

Edge Detector II

DENEX Systems TechnologyAB

Solkraftsvägen 31, S-135 70 Stockholm, Sweden

Tel: + 46 (8)7 12 00 20 Fax: +46 (8) 712 59 45 E-mail: techsupport.dst@denex.se

DENEX

SYSTEM S

TEC HN O LO G Y

DENEX

keeps an eye on your

production

Figure 3.2.2 Mechanical mounting with reference surface.

3.3 Electrical installation

The interface to the copy sensor is a 7-pin connector with the following pin-out:

Matching connector: Amphenol Tuchel T3476 001, delivered with the sensor.

Pin 1 : +24VDC in

Pin 2 : + Output (collector)

Pin 3 : Not connected

Pin 4 : Not connected

Pin 5 : - Output (emitter)

Pin 6 : 0V

Pin 7 : No function

3.3.1 Power Connection

Proper wiring techniques are essential for successful system installation. To reduce the

effects of electrical noise interference and static discharge, the procedures outlined in this

section must be strictly followed.

The sensor shall be connected to 24 VDC regulated power.

It must be free from transients!

Never connect or disconnect any cables when the power is on!

The normal current consumption is 150 mA.

3.3.2 Output Signal

The output is a normally open, opto-isolated transistor. Every output pulse is signaled as a

closing of the output for a certain time; see also “DIP-Switch Settings”

The specification for the output opto-coupler is as follows:

Max load current: 100 mA

Max voltage: 35VDC

User Manual DENEX Edge Detector II 7/20 Baumer Electric AG

Version 2013-02, V1.6 www.baumer.com Frauenfeld, Switzerland

3.3.2.1 Output Signal – Connections

The output can be used for both "current source" and "current sink" depending on what is

required by the equipment. In current source mode, the sensor output will give a positive

pulse to the stacker/totalizer when active. In current sink mode, the sensor output will give

a negative pulse. Figure below shows a common 24 VDC as power supply and feeding the

pulse. It is possible to have different power supplies. In that case, the 24V power is

connected to pins 1 and 6, and the totalizer can be connected to pins 2 and 5.

Figure 3.3.2.1.1 Electrical connection, common 24V-supply. Current source (PNP).

Figure 3.3.2.1.2 Electrical connection, common 24V-supply. Current sink (NPN).

Figure 3.3.2.1.3 Electrical connection, separate supply for power and pulse.

Copy Sensor

User Manual DENEX Edge Detector II 8/20 Baumer Electric AG

Version 2013-02, V1.6 www.baumer.com Frauenfeld, Switzerland

4 SOFTWARE FUNCTIONS

The benefit with the microprocessor-based copy sensor is that the sensor learns what the

products and the stream look like and make decisions according to this.

Application Setting

Things like output pulse width, Blocking Function and other parameters are set a little

different for each application in order to reach the highest possible accuracy.

There are DIP-switches that tell the sensor which application it should be set for.

It is very important to set the right application!

4.1 Blocking Function

This function will eliminate false counts due to double edges or a cut-edge-first delivery.

The sensor will count edges coming within the blocking zone as one product. In

productions using stitches, extra pulses due to the stitch are blocked out by this function.

The blocking zone is a dynamic value that constantly adapts to the average distance

between copies. It will be 15%, 30 % or 46% of the average lap, depending on application.

The average distance between copies is 100%, see figure 4.1.

Figure 4.1 The principle of the blocking function. The blocking zone is marked with grey.

15% is dark grey, 30% both grey sections.

The 46% blocking zone is marked with arrows.

For irregular product streams where the lap distance between each copy varies much, the

above described blocking function, can block out copies. This gives the result that there

are too many copies in each bundle. For such cases a special mode is available in the

software, Mode 11.

Our general recommendation is to try to adjust the machinery and get correct stream

conditions, so the lap distance between each copy becomes equal.

User Manual DENEX Edge Detector II 9/20 Baumer Electric AG

Version 2013-02, V1.6 www.baumer.com Frauenfeld, Switzerland

4.2 DIP-Switch Settings

An 8-pole DIP-switch can be reached via the lid on top of the sensor. Unscrewing the

screw opens the lid.

The software functions can be controlled via the DIP switches.

DIP-Switch positions

= OFF

= ON

DIP-switches 1-4 are reserved for factory.

DIP-switches 5-8 are for selecting operation mode

All in OFF-position is the default setting.

DIP-Switches

Mode 0 =

Default Commercial products: For timing applications, Blocking 15%, Output 5 ms

Mode 1 Counting application: Blocking time 30%, Output 5 ms

Mode 2 Timing application: Blocking time 15%, Output: 20 ms

Mode 3 Counting mode: Blocking time 15%,Otput: 20 ms

Mode 4 Newspapers, Blocking time 30%, Output: 20 ms

Mode 5 Edge detecting: Blocking time 15%, Output: 5 ms

Mode 6 Edge detecting: Blocking time 15%, Output: 20 ms

Mode 7 Cut edge first mode: Blocking time 46 %, Output 20 ms

Mode 8 Counting mode: Fixed blocking time = 7 ms, Output 5 ms.

Mode 9 Commercial: No Blocking, Output 5 ms

Mode 10 reserved

Mode 11 reserved

Laser power save mode is activated in all Counting/newspaper modes.

This means the laser power will be reduced to 50% after a 60 seconds gap.

User Manual DENEX Edge Detector II 10/20 Baumer Electric AG

Version 2013-02, V1.6 www.baumer.com Frauenfeld, Switzerland

5 LED INDICATORS

There are four LED’s that are placed close to the connector.

Power (Green)

Laser off (Red)

Output (Orange)

Not used ( ellow)Y

5.1 The POWER-LED

The green POWER-LED indicates that the sensor has power and should be operating.

For laser safety reasons never mount or adjust the sensor when Power-LED is on!

5.2 The LASER OFF-LED

The LASER OFF-LED is an indication that the laser is off. The laser will be shut off for the

following reasons:

•The laser power has exceeded the allowed limits (electronic problem inside sensor)

•The laser power has reached lower than acceptable level (laser is worn out, or

electronic problem)

If the laser levels are outside of the allowed limits, the sensor must be sent for repair.

5.3 The OUTPUT-LED

The OUTPUT-LED is active when the output stage is active (set). The LED will flash for

every output pulse.

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