Ba Evk Evk2-Cp Evm-cp Lic 01 en Version 02

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Operating Instruction (Translation of Original Operating Instruction) EVK2_CP/EVM2-CP_LIC - Optical sensor positioning devices with CAN-Bus-Interface and LIC

BA_EVK_EVK2-CP_EVM2-CP_LIC_01_en

Document-ID: EMGDES-00004552

Table of Contents EVK2_CP/EVM2-CP_LIC - Optical sensor positioning devices with CAN-Bus-Interface and LIC

Table of Contents 1

Product Description

1.1

Preface

1.2

Liability

1.3

Application

1.4

Technical Data EVK

1.5

Technical data EVM

1.6

Technical data LIC

2

Safety

2.1

Introduction

2.2

Structure and meaning of the references

2.3

General regulations

2.4

Authorised/specialised personnel

2.5

Intended usage

2.6

Removal of safety guards

3

Packaging and transport

3.1

Type of packaging

3.2

Transport

3.3

Unpacking the equipment

4

Configuration and function

4.1

Brief system description

4.2

Effect description of the system with HF light unit

4.3

HF alternating light measuring sensors which are insensitive to ambient light

5

Display and operational elements

5.1

Layout of components on electronic card EVK2.11

5.2

Important operating and display elements for setting and checking sensors EVK2-CP / EVM2-CP

6

Commissioning

6.1

Information on accident prevention

6.2

Installation

6.3

Prerequisites for connection

6.4

Installing the measuring equipment

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5 2

5 2

5 2

5 2

6 2

6 2

7 2

9 2

9 2

9 2

9 2

10 2

10 2

10 2

12 2

12 2

12 2

12 2

13 2

13 2

13 2

13 2

14 2

14 2

14 2

16 2

16 2

16 2


16 2

16 2

3

Table of Contents EVK2_CP/EVM2-CP_LIC - Optical sensor positioning devices with CAN-Bus-Interface and LIC

6.5

Installing the higher-ranking control electronics

6.6

Basic settings for compact light emitter LIC

6.7

Commissioning of the sensor positioning device

6.7.1

Aligning the measuring and reference photocell with the light unit

6.7.2

Adjusting the measuring and reference photocell

6.7.3

Aligning the reference photocell

7

Operation

7.1

Operation mode preselection

7.2

"Position" and "locate edge" amplification

7.3

CAN-Bus communication

7.3.1

CAN bus addressing

7.3.2

CAN-Bus transfer rate

8

Maintenance

8.1

Safety measures

8.2

General information

8.3

Maintenance intervals

8.4

Checking the condition of the equipment

8.5

Cleaning the glass panel (light unit)

9

Repair

9.1

Fitting a replacment EVK2.11 card

10

Decommissioning/storage

10.1

Authorised personnel

10.2

Storage

11

Disposal

11.1

General information

11.2

Materials

11.3

Disposal regulations

Index

4


18 2

18 2

19 2

20 2

21 2

21 2

23 2

23 2

23 2

23 2

24 2

24 2

25 2

25 2

25 2

25 2

25 2

25 2

27 2

27 2

30 2

30 2

30 2

31 2

31 2

31 2

31 2

32 2

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Product Description EVK2_CP/EVM2-CP_LIC - Optical sensor positioning devices with CAN-Bus-Interface and LIC

1 Product Description 1.1 Preface This documentation describes the intended purpose, the configuration and function of the product. Furthermore, the documentation also contains information concerning the initial operation, maintenance and repair. This documentation must be read carefully by specialised personnel before installing or starting to use the machine. Incorrect handling can result in damage to property or personal injury. The safety information and the highlighted instructions (note, caution, warning and danger) must be observed without fail.

1.2 Liability No liability can be assumed when using EMG equipment for applications other than those specified by the manufacturer. Responsibility for measures that may be required to prevent personal injury and material damage lies with the operator or user. If there are any complaints concerning EMG equipment, please inform us immediately quoting the following: ▪ ▪ ▪ ▪ ▪ ▪

Type designation Manufacturing no. Complaint Duration of use Environmental conditions (temperature, humidity) Operating mode

The manufacturer's liability shall expire in the event of non-observance of the instructions included in this manual. Neither this description nor the corresponding diagrams and other appendices may be reproduced without our prior consent nor shall they be made accessible to third parties or used improperly in any other way.

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1.3 Application Increasing levels of automation and a growing importance of product quality demand a continuous detection of the strip edge position/strip width in processing lines. To satisfy this function non-contact measuring sensors (type EVK / EVM) are used to obtain information concerning the strip edge/strip centre position by using light units (type LIC) to conduct a bandpass filtering process of a high-frequency proportion of light. The sensor positioning devices are controlled in individual cases of operation via the downstream control electronics. When using sensor positioning devices of type EVK2CP or EVM2-CP the communication and control function is conducted via the CANOpen interface. This significantly reduces the amount of wiring in comparison to predecessor EVK and EVM units. Other functions and status messages are integrated in the communication protocol, which makes maintenance options and troubleshooting measures much more straightforward. In normal circumstances a sensor positioning device is controlled in such a way that measuring photocell LS13 continuously follows the changing strip edge position. This is simultaneously accompanied by a reference photocell (type LS14), which continuously monitors the degree of light intensity and compensates any contamination present. The current actual position of the sensor positioning device is detected by an internal rotary potentiometer; it is also possible to use a digital linear stroke transducer. Application of the LIC The compact light emitter is a linear light emitter for optical strip sensing. The edge of non-transparent materials can be scanned in combination with optical receivers LS13/14 or HF-PLE/HF-PLM and the corresponding evaluation systems (e.g. EVK). A strip edge sensing system can be realised by using a servo amplifier and an actuator or two optical receivers. The compact light emitter should not be used as a light for general illumination purposes as defined in standard DIN EN 60598 (VDE0711) or other similar standards.

1.4 Technical Data EVK Motor voltage

24 V DC 0.5 A (starting current < 4 A)

Electronic supply

±15 V 0.02 A

Interface

CANopen

Protection type

IP54

Weight

15 … 20 kg per measuring length

The EVK2-CP is completely supplied by the SPC16 control amplifier or the 24 V power supply module. Type code

6

Type

EVK2-CP

Stroke

250 400 600 800 1000

Model

On request

Arrangement of the electronics

L or R


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1.5 Technical data EVM Motor voltage

24 V DC 0.5 A (starting current < 4 A)

Electronic supply

±15 V 0.02 A

Power

> 50 VA

Interface

CANopen

Protection type

IP54

Weight

21.5 … 25 kg per measuring length

The EVM2-CP is completely supplied by the SPC16 control amplifier or the 24 V power supply module. Type code

Type

EVM2-CP

Stroke

550 750 1000 1650 1810 2010

Type

On request

Arrangement of the electronics

L or R

1.6 Technical data LIC

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Supply voltage

24V DC controlled (21 V DC to 26 V DC on LIC connection)

Status information LIC_ok

24 V/50 mA = log. one, if at least 70% of the reference light is reached; permanently short-circuit proof (see appendix).

Synchronisation signal Sync

Input & output for frequency & phase synchronisation of two light emitters 24 V/5 mA/1953, 3 Hz in normal operation. Sustained short-circuit > 1 minute leads to the destruction of the lamp output stage.

Connection crosssection

Cu : max. 2.5 mm2

Max. supply current 24 V=

LIC 480 2.4 A

LIC 770 3.0 A

LIC 1075 4.2 A

LIC 1375 4.2 A

Power of the integrated heating unit

LIC 480 31 W

LIC 770 35 W

LIC 1075 69 W

LIC 1375 61 W

Optical sensing range with LS 13/LS 14

LIC 480 480 mm

LIC 770 770 mm

LIC 1075 1075 mm

LIC 1375 1375 mm

Dimensions without plug LIC 480 90 mm x 90 mm x HxWxL 669 mm (plug: +81 mm)

LIC 770 90mm x 90mm x 959 mm

LIC 1075 90mm x 90mm x 1264 mm

LIC 1375 90mm x 90mm x 1564 mm

Weight

LIC 480 5.8 kg

LIC 770 8.0 kg

LIC 1075 10.3 kg

LIC 1375 12.6 kg

Temperature range

Storage and transport: -25... +85 °C Operation: 0... +50 °C


7


8

Protection type

IP65

EN60529

Environmental tests

sinusoidal vibrations constant cold Ad constant heat Bc damp heat, cyclical

EN 60068-2-6 EN 60068-2-1 EN 60068-2-2 EN 60068-2-30

Climate class

3K3

EN60529

EMC - emitted interference

Group 1, class A

EN55011

EMC - immunity from disturbance

Industrial area: Electrostatic discharge (ESD) HF fields Fast transients (burst) Impulse voltage (surge) HF current

EN 61000-6-2 EN61000-4-2 EN61000-4-3 EN61000-4-4 EN61000-4-5 EN61000-4-6

Cable lengths

see Supply voltage


EMG Automation GmbH

Safety EVK2_CP/EVM2-CP_LIC - Optical sensor positioning devices with CAN-Bus-Interface and LIC

2 Safety 2.1 Introduction This chapter explains the safetyregulations that must be strictly observed when using this product. It defines the responsibilities of the operator and the safety precautions which refer to the various danger stages in the individual chapters. WARNING Inappropriate operation can result in death or serious bodily injury. 1. The chapter entitled "Safety" must be read and fully understood by all persons who are responsible for operation, maintenance or repair work.

2.2 Structure and meaning of the references Important information concerning technical and operational safety is indicated as follows in this operating manual: DANGER Refers to a dangerous situation which results in death or serious bodily injury.

WARNING Refers to a dangerous situation which can result in death or serious bodily injury.

CAUTION Refers to a potentially dangerous situation which can result in minor to medium bodily injury. NOTICE Refers to a situation which can result in damage to property.

For application information and other useful information (tips & tricks).

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2.3 General regulations The person responsible for the plant must ensure that ▪ safety instructions and operating instructions are readily available and are adhered to ▪ operating conditions and technical data defined in the order are adhered to ▪ protective equipment is used ▪ prescribed maintenance is carried out ▪ maintenance personnel are informed without delay or the electrical component is stopped immediately if abnormal voltages, high temperatures, noises, vibrations etc. occur in order to determine the cause. This documentation contains the information which is required for qualified personnel to utilise the strip guiding systems in industrial plants. Additional information and references for non-qualified persons, and information relating to the use of the components in non-industrial plants, are not contained in this operating manual. The manufacturer's guarantee only applies if this documentation is adhered to.

2.4 Authorised/specialised personnel The supplied equipment may only be transported, installed, connected, put into operation, maintained and operated by qualified personnel that have mastered the current safety regulations and mounting instructions. All work must be checked by responsible, qualified personnel. The qualified personnel must be authorised to do the necessary work by the person legally responsible for the safety of the plant. Qualified persons are those who ▪ have the necessary training and experience ▪ are acquainted with applicable standards, regulations, provisions and accident prevention regulations ▪ have been trained under operational conditions in the application of the strip guiding systems ▪ are able to detect and eliminate risks For regulations and definitions concerning qualified personnel, see VDE 0105 or IEC 364. The appropriately trained personnel may only work within the scope of their professional training. WARNING Employment of unqualified personnel. Possible serious bodily injury or death. 1. Only use the services of qualified personnel. The use of non-qualified personnel is prohibited.

2.5 Intended usage This product may only be used for the intended purposes specified in chapter «Product description». The details included in accordance with the "technical data" in chapter «Product descriptio» of this document are applicable as authoritative limitations of use and characteristic data. Any use of this product other than that specified is to be avoided. The manufacturer is not liable for any damages resulting from unintended use; the operator shall assume sole responsibility for the risk.

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2.6 Removal of safety guards Safety guards and covers may only be removed if the system has been electrically shut down and disconnected. The safety guards and covers in particular may only be removed by authorised persons and they must be reassembled before restarting the system. WARNING Unauthorised access Possible serious bodily injury or death. 1. When conducting maintenance work set up a safety fence to prevent access to unauthorised persons.

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Packaging and transport EVK2_CP/EVM2-CP_LIC - Optical sensor positioning devices with CAN-Bus-Interface and LIC

3 Packaging and transport 3.1 Type of packaging The product is packaged or securely bolted to wooden beams for direct transportation with a truck. If the product is going to be placed in storage, drying agent should be applied and it should be foil welded and packaged in a wooden crate. For transport by sea the crates are additionally provided with bituminised board and crates complying with seaworthy regulations are used. Carrying ropes must be applied at 2 points for loading purposes.

3.2 Transport WARNING Falling load Resulting in possible serious bodily injury or death. 1. For the fastening of the load-carrying equipment on the crane only suitable and sufficiently dimensioned slinging means may be used! 2. The carrying ropes must be secured in such a way so that they cannot slip and cause the load to tilt and fall. The crates may only be transported and stored in the designated condition. Damage to the crates - particularly the packaging foil - is to be avoided. NOTICE Torn foil Results in possible damage to the product. 1. Broken foil must be re-welded to prevent subsequent damage to the equipment. The drying agent is to be checked beforehand and replaced if necessary.

3.3 Unpacking the equipment The equipment should only be unpacked in enclosed and dry areas directly before starting assembly. Only remove the preservation agents shortly before the start-up operation. NOTICE improper transport Leads to material damage of the product. 1. Examine the shipment immediately after receipt for any signs of transport damage and accuracy of supply. ֲ If the packaging is damaged, it must be removed in the presence of a representative of the transport company. An elevating platform truck, a forklift truck or an indoor crane must be used for loading and unloading, depending on the transport weight (see dimensional drawing or shipping data). The load must be wedged on the truck and secured against shifting.

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Configuration and function EVK2_CP/EVM2-CP_LIC - Optical sensor positioning devices with CAN-Bus-Interface and LIC

4 Configuration and function 4.1 Brief system description At least one sensor positioning device with electrically adjustable slide is arranged above the strip (two complete sensor positioning devices are also required for centre control processes or width measurements). A high frequency alternating light measuring unit, consisting of measuring and reference photocells, is assembled on the slide. A rotary potentiometer is attached to the DC motor internally to detect the current actual position. A light unit with 2 kHz supply is located below the strip. Both the light unit and the sensor positioning device(s) are supplied with power by mains adapters located in a separate enclosure. The high frequency alternating light measuring equipment is evaluated in the electronic unit on the sensor positioning device.

4.2 Effect description of the system with HF light unit The strip edge is detected by a motorised sensor positioning device, which is equipped with HF alternating light units LS13 / LS14 with protection against ambient light. If the strip edge is displaced due to a change in strip width or a lateral strip deviation, this is detected by the photocells. The superimposed control electronics then activate the DC motor or the actuator of the control circuit, in order to ensure that the strip edge always covers half of the measuring range of the photocell. Contamination of the light emitters is compensated by applying the reference principle. This involves each measuring unit using a measuring sensor and a reference sensor directed to the same bright spot of the light emitter. While the measuring photocell detects the lateral position of the strip edge the reference photocell measures the background brightness of the light spot. The elimination of ambient light disturbances through the use of HF light emitters and selective HF alternating light receivers, whose bandpass evaluation occurs within the EVK2-CP electronics, is of significant importance to the accuracy of the measurement result. The intensity of the light emitted is regulated and monitored for any malfunctions. The entire system is parameterised as standard with a laptop or PC or via a keyboard/diagnostics unit on the control electronics. When the power supply is wired accordingly a complete alignment of the measuring sensors is possible, even without CAN bus communication.

4.3 HF alternating light measuring sensors which are insensitive to ambient light Light units (LIC) are operated with a 2 kHz modulated supply voltage to eliminate influences of ambient light on the strip position detection process. The measuring signals for the HF alternating light measuring sensors are conducted through electrical filters. When doing this only the high-frequency light signal is evaluated. The brightness of the light units is maintained at a constant level by an internal control circuit, which ensures this measuring device is unaffected by ambient light or changes in voltage or temperature.

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Display and operational elements EVK2_CP/EVM2-CP_LIC - Optical sensor positioning devices with CAN-Bus-Interface and LIC

5 Display and operational elements 5.1 Layout of components on electronic card EVK2.11

Views of the optional electronic units EVK2.12/2.13/2.15

5.2 Important operating and display elements for setting and checking sensors EVK2-CP / EVM2-CP

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Element

CAN-Bus electronics EVK2.11

H1

LED, yellow, flash cycle controller

H2

LED, green, internal voltages o.k.

H3

LED, green, motor o.k.

H4

LED, green, receiver o.k.

H5

LED, green, system o.k.

H6

LED, green, EVK position o.k. (not in end position)

H7

LED, green, CAN controller o.k.

H8

LED, green, CAN-bus status

H10

LED, yellow, LIC o.k. (connection to X1/6)

H20

LED, yellow, limitation of motor current

R1

Trimmer, setting potentiometer for measuring photocell 1

R2

Trimmer, setting potentiometer for reference photocell 1

R30

Supply voltage internal stroke transducer (set by the manufacturer)

R61

Trimmer amplification "locate edge"

R62

Trimmer amplification “position”

MES1, REF1, W, GND

2.5 mm measuring sockets for voltmeter connection

S2

Multifunctional switch

S3

Baud rate setting for CAN-bus


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Display and operational elements EVK2_CP/EVM2-CP_LIC - Optical sensor positioning devices with CAN-Bus-Interface and LIC

EMG Automation GmbH

Element

CAN-Bus electronics EVK2.11

S4

Selector switch for internal test functions

S6

Reset button

S31/S32

Pushbutton for manual operation ←/

S50

CAN-Bus address low (standard 4 or 5)

S51

CAN-Bus address high (standard 0)

J8

Jumper for CAN-GND on potential-free GND

J9

Jumper for CAN-Bus terminating resistor 120 Ohm (ON, if terminal is in the CAN network)

J41/42/J7

Jumpers for factory settings and test functions

X1

Terminal strip for supply voltages 24 V/15 V DC

X3 and X4

Terminal strip for receiver 1 and 2 (internal wiring)

X5

Terminal strip for motor connection (L = red; R = black)

X7

Connection for internal rotary potentiometer (K7/1 = BK ; X7/2 = YE(0...10 V) ; X7/3 = RD)

X21

Plug connection for PC (RS 232)

X31

Input terminal strip for CAN bus connection

X33

Terminal strip CAN Bus connection for other consumers (J9 = OFF)

X13/X14

Connection terminal strip for 2nd photocell pair

Only for EVM with subprint EVK2.12

R3/R4 with MES2/REF2

Setting potentiometers and measuring sockets for 2nd photocell pair

Only for EVM with subprint EVK2.12

X41

Terminal strip for external SSI stroke transducer (stabilised, external power supply with +24 V DC necessary via terminal strip X31/5 and 6)

Only for SSI stroke transducer with subprint EVK2.13

X15 and X16

Terminal strip for analogue sensors

Only for EVK with EVK2.14 or EVK2.15

X17

Alternative terminal strip for feeding external DC supply voltage (e.g. lamp supply R42)

Only for EVK with EVK2.14

X18

Internal terminal strip supply voltage with +/-12 V DC

Only for EVK with EVK2.14


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Commissioning EVK2_CP/EVM2-CP_LIC - Optical sensor positioning devices with CAN-Bus-Interface and LIC

6 Commissioning 6.1 Information on accident prevention The safety regulations described in the chapter safety must be observed.

When connecting and operating the equipment, make sure that the protective system prescribed by VDE 0100 is used. The generally applicable safety regulations and instructions for industrial safety are also to be complied with. CAUTION Moving the measuring equipment to the sensor positioning devices Crushing of body parts possible. 1. Before activating the positioning device please make sure that safe movement is possible.

6.2 Installation Only unpack the devices immediately before commencement of installation in a closed and dry building. Check the rust-proofing of components (bright parts, protective coats, etc.) and retouch as needed. Only remove protective devices used during transport and rust-proofing measures shortly before commissioning.

6.3 Prerequisites for connection The exact dimensions required for installation of the equipment are specified in the relevant drawings. Select an installation location which enables the equipment to be easily serviced.

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6.4 Installing the measuring equipment Select the place of installation so that the fluorescent tubes can be easily changed.

Arrangement of sensor positioning devices and light units in the plant 1 EVK2-CP left-hand

c Maximum strip width

2 EVK2-CP right-hand

d Minimum strip width

3 Light unit (LIC...)

e Useful light length LIC

a EVK stroke

f Reference point

b Centre of the equipment

1. Install the EVK sensor positioning devices as shown in the illustration so that the minimum strip width and the maximum strip width are symmetrically within the adjusting range . The reference point for installation is . 2. Adjust EVKs <1> and <2> in parallel to the light units <3>. ֲ The travelling axes and the centre axes of the light units must be in parallel. 3. Install the light unit so that the useful length is within the adjusting range of the EVKs. ֲ The permissible distance between the light unit and the receiver is L = 300 … 4 000 mm. ֲ The permissible distance between the light unit and the strip is: ≥ 175 mm + (0.13 · L).

Arrangement of the EVM and light units in the plant 1 EVM2-CP

c Centre of the equipment

2 Light unit LIC

d Reference point

a Maximum strip width

e Useful light length LIC

b Minimum strip width

L Distance between light unit and receiver L = 300 ... 4000mm X Distance light unit and strip ≥ 175 + 0.13 - L

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Arrangement of HF measuring and reference photocells 1 Reference photocell

3 Strip

2 Measuring photocell

4 Light unit (LIC...) L Distance between light unit and receiver L = 300 ... 4 000 mm X Distance between light unit and strip ≥ 175 mm + (0.13 · L)

Arrange measuring photocell at right angles to the strip . While the optical beam of the measuring photocell is half-covered by the strip, the reference photocell <1> observes the remaining spot of light on the light unit <4>. It should be ensured that the optical beam of the reference photocell <1> is not covered in any operational case by arranging the sensor positioning device (EVK) and light unit <4> accordingly.

6.5 Installing the higher-ranking control electronics 1. Observe the ambient conditions when installing the control electronics. 2. Protect from direct thermal radiation, moisture, and appreciable shocks. 3. Wiring must be carried out in line with the circuit diagram. Special importance must be attached to correct wiring and use of the appropriate type of CAN bus cable and screening.

6.6 Basic settings for compact light emitter LIC Function description The compact light emitter LIC supplies a controlled 2 kHz alternating light which can be frequency- and phase synchronised by using two lamps. The light-generating element is a fluorescent lamp with special "electronic ballast", which has the following functions: ▪ Ignition of the lamp ▪ Operation of the lamp as a controlled 2 kHz alternating light source ▪ Synchronisation of two lamps (by connecting the sync line: only for PLM application) ▪ Reporting the lamp status The LIC has been synchronised by the manufacturer, and as such, does not require additional adjustment for start-up operation.

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Block diagram - Compact light transmitter LIC ... Type

Supply voltage to 24VDC

Capacity of int. heating Fluorescent tubes Æ26 mm, colour 840

LIC 480

2.4 A

31 W

L18W, 590 mm

LIC 770

3.0 A

35 W

L30W, 895 mm

LIC 1075

4.2 A

69 W

L36W, 1200 mm

LIC1375

4.2 A

61 W

L58W, 1500 mm

Temperature range

Storage and transport: -25... +85 °C Operation: 0... +50 °C

Protection type

IP54

EN60529

6.7 Commissioning of the sensor positioning device The traversing path of the sensor positioning device is set to the inner and outer maximum position by the manufacturer. If this needs to be changed (for mechanical installation or a replacement device), the inner end position can be adjusted by turning the friction clutch between the motor and the potentiometer. The outer end position can only by changed by connecting a laptop and a terminal programme. Checking the limit switch function of the EVK 1. Remove the cover of the EVK electronic unit and move the slide "to the strip centre" or "to the strip edge" by using button S31 and S32 (previous selection S4/2 for manual operation); ֲ LED H6 (3) signals "ready to move" or "not in end position". ֲ When it is in the "end position, inner" or "end position, outer" LED H6 goes out and the slide can only move in the opposite direction. The inner end position is determined by the potentiometer voltage and it can be changed as follows: 1. Drive the slide to the inner position and measure the actual position value at test socket W. ֲ The slide stops at 0 V DC. 2. The limit switch position can now be changed to the desired position by turning the friction clutch between the motor and the potentiometer. When changing the inner end position the value for the outer end position is also changed. This is to be checked if necessary. The outer value is determined according to the EVK stroke with a scaling value of 1V/100 mm (e.g. EVK600 should display 6 V at the outer end position). The outer end position is factory-set with a scale of 1 V/100 mm. A software-controlled alteration using a laptop is possible, but not necessary for plant operation. In addition, the associated control electronics also offers the possibility of electronically limiting the stroke of the positioning device via the motor controller (e.g. to mask the edges of transfer tables).

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Displacement scaling to 1 V/100 mm is to be checked through the entire procedure of the positioning device (measurement at test socket W against GND), and scaled, if necessary, using potentiometer R30.

Electronics EVK2.11 (for optional additional cards EVK2.12/2.13) 1 Potentiometer R1/R2 MEAS/REF

8 Hex-switch S50/S51 CAN-Bus address

2 Measuring sockets MEAS1, REF1, W, GND

9 Jumper J9 Terminal resistance CAN-Bus

3 LED H10 (LIC o.k.)

10 Connector X21 for laptop terminal connection Terminal operation

4 Button S31/S32 (manual method)

11 Potentiometer R30 displacement scaling

5 Button S6 (Reset-button)

12 Switch S2 function switch

6 LED H1 ... h8

13 Switch S3 CAN-Bus configuration

7 Rotary switch S4 test functions

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6.7.1 Aligning the measuring and reference photocell with the light unit The field of vision of the receivers must be kept free! Set potentiometers R1 and R2 to the centre position (when using EVM positioning devices also set R3 and R4 on subprint EVK2.12); Aligning the measuring photocell with the strip pass level

Arrangement of the measuring photocell 1 Measuring photocell

3 Light unit

2 Reference photocell

4 Strip pass direction

1. Swivel the measuring photocell pos. (1) transversely to the strip pass direction, align at an angle of 90° to the strip pass level and tighten the corresponding socket head screws. 2. Connect the measuring instrument to socket Meas .. and GND (2). 3. Swivel the measuring photocell in the strip pass direction - Fig. 3-5 (4); tighten the socket head screws at maximum voltage level. 4. Set potentiometer R1 (R3) so that the measuring instrument displays 10.0 V. Arranging the reference photocells in the strip pass direction 1. Connect the measuring instrument to socket Ref .. and GND (2). 2. Swivel the reference photocell in the strip pass direction (4); tighten the socket head screws at maximum voltage level. 3. Set potentiometer R2 (R4) so that the measuring instrument displays 5.0 V.

6.7.2 Adjusting the measuring and reference photocell Adjust measuring and reference photocells according to the following table. Receiver

Measuring point EVK2.11/ EVK2.12

Adjustment in V to the measuring sockets on the EVK

Setting potentiometer EVK2.11/ EVK2.12

Measuring photocell 1 – AS

MEAS 1

10 V DC

R1

Reference photocell 1 – AS

REF 1

5 V DC

R2

Measuring photocell 2 – BS

MEAS 2 **

10 V DC

R3 **

Reference photocell 2 – BS

REF 2 **

5 V DC

R4 **

** only available when using positioning device EVM2-CP on subprint EVK2.12.

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6.7.3 Aligning the reference photocell See Aligning the measuring and reference photocell with the light unit [➙ 20]!

1. Connect external measuring instrument to measuring socket MEAS .. and GND (2) on the sensor positioning device. 2. Cover the measuring range of the measuring photocell with at least 100 mm wide material strips - from the centre of the plant outwards - directly on the light unit so that the external measuring instrument displays a reading of 2.5 V. 3. Connect external measuring instrument to measuring socket REF .. and GND (2) on the sensor positioning device. 4. Swivel the reference photocell transversely to the strip pass direction (see pos. (4)) so that the measuring instrument displays 2.5 V; tighten the screws . 5. Check both voltage values at socket MEAS .. and REF .. (2.5 V). Re-adjust if necessary. The above described adjustment must be conducted by EVM devices for both pairs of photocells! The additional measuring points and setting potentiometer are accommodated on subprint EVK2.12 for this purpose.

See also Aligning the measuring and reference photocell with the light unit [➙ 20]

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Operation EVK2_CP/EVM2-CP_LIC - Optical sensor positioning devices with CAN-Bus-Interface and LIC

7 Operation 7.1 Operation mode preselection The base board EVK2.11 can be used in combination with the following subprints: 1. EVK2.12 (as electronics for EVM) 2. EVK2.13 (input of an installed SSI stroke transducer), 3. EVK2.14 (connection for 2 analogue sensors with ± 10 V including external feed of the supply voltages (e.g. R42D12 assembled on EVK slide) 4. EVK2.15 (connection for 2 analogue sensors with internal 12 V DC supply: US sensors with ± 9 V signal output) The various modes of operation are to be set according to the following table: Overview of function switch S2 DIP switch S2/1

S2/2

ON

Meaning S2/3

Notes

S2/4

OFF

EVM operation; receiver pair evaluation, 2-fold

ON

SSI encoder

The actual value from the SSI position sensor (with an absolute accuracy of 1/10mm) is used as the actual position value instead of the value from the internal rotary position encoder (potentiometer). This value is transferred via the CAN bus and it is applicable for positioning and end position monitoring. (OFF = int. stroke transducer)

OFF

ON

EVK operation with input from two analogue sensors via EVK2.14 / EVK2.15

OFF

OFF

EVK operation including input from an additional analogue sensor via EVK2.14 / EVK2.15 ON

Software filter active

PT1 links for the photocell signals and the internal stroke sensor can be activated

7.2 "Position" and "locate edge" amplification The basic amplification for the "position" mode is set directly on the sensor positioning device. The software on the EVK2.11 board includes an internal test programme for this purpose, which is set as follows: 1. Select the test programme via function switches S4/3 or S4/4 (standard operation position 0). 2. Alternating between switching position S4/3 (100 mm) and S4/4 (150 mm) drives the sensor positioning device between two positions. ֲ The degree of amplification can then be aligned using potentiometer R62 to prevent the positioning device overshooting the selected position. 3. Insert a specimen strip into the measuring area in a strip pass level for the "locate edge" mode. 4. Select the test programme via function switch S4/1 (standard operation position 0). 5. Moving the material sample causes the positioning device to follow the lateral movements. The degree of amplification is to be adjusted when doing this using potentiometer R61 on the electronic unit EVK2.11. In parallel to setting the degree of amplification on the EVK it is also possible to implement a setting via the digital control amplifier. The respective configuration is to be inferred from the system description for the overall control unit.

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Operation EVK2_CP/EVM2-CP_LIC - Optical sensor positioning devices with CAN-Bus-Interface and LIC

7.3 CAN-Bus communication 7.3.1 CAN bus addressing 1. Use the dip switches S50 and/or S51 to set the address on the CAN Bus network. ֲ Switch S50 here stands for the "Low Byte" and switch S51 stands for the "High Byte". By default the first sensor positioning device in a CAN network is programmed by EMG with the base address "04" hex. When using a second device the address "05" hex is programmed (e.g. for strip centre guiding with two EVKs). The addresses of other positioning devices (e.g. for tack weld alignment) are to be inferred from the operating manual or circuit diagram. 2. Jumper J9 is to be inserted for the last consumer on the CAN network according to the circuit diagram and wiring (visible if no cable appears from terminal strip X33) in order to activate the terminating resistor of 120 Ω.

7.3.2 CAN-Bus transfer rate Use DIL switch S3 to set the transfer rate. This is determined during planning and is dependent, among other things, on the overall cable length and number of users in the CAN network. Alterations and deviations from the factory settings are listed in the operating manual for the overall system. Setting the transfer rate using switch S3. DIL switch S3

CANopen interface configuration

Baud Rate 1

2

3

4

0

0

X

X

1 MBaud

1

0

X

X

500 kBaud

0

1

X

X

250 kBaud *)

1

1

X

X

125 kBaud

X

X

X

1**)

**) 1 : synchronous transfer PDO1 **) 2: asynchronous transfer PDO1 *)

*) factory setting

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Maintenance EVK2_CP/EVM2-CP_LIC - Optical sensor positioning devices with CAN-Bus-Interface and LIC

8 Maintenance 8.1 Safety measures Prior to carrying out any maintenance, the following safety measures must be observed: 1. 2. 3. 4.

Switch the equipment off! Prevent the plant from generating unwanted voltage! Inspect the plant to make sure it is free from voltage. When all of the moving parts on the plant have come to a standstill the mechanical locks must be activated. 5. The local safety regulations and operational safety directives must be adhered to without fail.

DANGER Electric shock The circuit board contains electrostatic sensitive devices (ESDs). 1. Circuit components may only be accessed by trained personnel using ESDprotective measures.

8.2 General information Maintenance work is limited to an absolute minimum. No special maintenance work is required apart from visual inspections and cleaning. Therefore it is only necessary to exchange components in the event of failure.

8.3 Maintenance intervals Maintenance work

Maintenance intervals

Clean the glass panel on the light unit

inspect on a weekly basis and clean if necessary

Clean photocells

inspect on a weekly basis and clean if necessary

Replace the fluorescent tube

every 8000 operating hours

8.4 Checking the condition of the equipment 1. 2. 3. 4. 5. 6.

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Check the external condition of the equipment for signs of damage. Replace damaged cover sheets. Check cable connections and plug and socket connectors for tight fit. Check cables for damage. Replace defective cables. Check the stability of the measuring portal.


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Maintenance EVK2_CP/EVM2-CP_LIC - Optical sensor positioning devices with CAN-Bus-Interface and LIC

8.5 Cleaning the glass panel (light unit) NOTICE Solvents and aggressive cleaning agents damage the light unit. 1. Do not use any solvents or aggressive cleaning agents when cleaning the light unit. Wipe the protective tube or glass panel with a damp cloth (if necessary use household detergent to remove the oil film).

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Repair EVK2_CP/EVM2-CP_LIC - Optical sensor positioning devices with CAN-Bus-Interface and LIC

9 Repair 9.1 Fitting a replacment EVK2.11 card Required material: ▪ Standard MODEM cable with pin 2/3/5, connected to standard 9-pin Sub-D connector ▪ Laptop with WIN95 or WIN98/2000 Terminal or Hyperterminal programme (under Programs/Accessories/Communication/® Hyperterminal) 1. Select FILE from the menu and then choose the sub-menu "Properties". 2. Set up the connection that you will be using to connect the laptop to the EVK2.11. 3. Select CONFIGURE. ֲ This opens the menu with the connection settings. Set the parameters as follows: Baud rate:

19200

Data bits:

8

Parity Bit:

None

Stop bit:

None

Flow control:

(Xon/Xoff) (no effect)

Set the parameters in accordance with the displayed numbers and connect COM port to terminal X21, on EVK2.11. The procedure for adjusting software limits and internal potentiometers on EVK 2.11 is as follows: Before conducting this process please check whether card EVK2.11 has a marker (sticker) which is evidence of a previous inspection. This confirms that the latest firmware has been downloaded. I.

Set switch S4 to position F and press the reset button S6 once. Communication with the Hyperterminal should now start and the menu shown in Figure 1 should appear.

Fig. 1 Main menu (EVK)

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II.

After selecting the menu should light up as shown in Figure 2.

Fig. 2 Menu Setting the inner limit position

1. Actuate switch S31 and S32 to move the EVM to the inner limit position. (A marker is located on the slide which specifies the position in relation to the aluminium base plate and there is also a marker for the inner end position.) 2. If it is impossible to reach the specified inner limit position, turn the friction clutch between the DC motor and potentiometer and change the potentiometer value. Move the slide to the inner limit position (indicated by a marker for the EVK/EVM flag). 3. Set the clutch so that 333 mV is displayed on the laptop or 0 mV is displayed on the voltmeter at measuring point W. III.

Use buttons S31/S32 to move the EVM carefully to the outer limit position (as it could move in the direction of the mechanical stop.)

1. Mark this position and measure the distance between the inner and outer limit positions. Preset for EVK Type 400, 600, 800 etc. 2. Set R30 on the EVK2.11 so that a reading of 1 V/100 mm is shown. Example EVK 800: if the gap is 800, then set R30 so that 8 V is shown at measuring point W. (or 8000 + 333 mV at pont "Position signal internal" in Fig. 2.) This is the standard value of the internal potentiometer. IV.

Check whether DIL switch S2/2 is set to OFF (i.e. no linear SSI encoder is attached to the EVK/EVM).

1. Select sub-menu <1> "Input Max_positionlength". 2. Enter the max. position in mm and confirm by pressing ENTER (800 mm).

Figure 3 Menu Setting the outer limit position

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V.

Sub-Menü <2> Select "SAVE Max positionsignal". (see Figure 4)

This menu must be selected to confirm the entry of the value under point 4. After selecting menu <2> the word "SAVEPOSITION" must be entered in capital letters and confirmed by pressing the ENTER key.

Figure 4 Menu <2> Confirmation of setting the outer limit position

If too small a value has been entered for the maximum value or if the outer limit position requires readjustment, implement the steps for points I and V and enter a "0" as the maximum position first; doing this will unlock the positioning device so that it can move in all directions. Then repeat steps III through V and enter the desired value. 1. Exit the menu by pressing . 2. Reset S4 to "0". Press RESET button S6. 3. Press button S31/S32 to check if the sensor stroke has been adjusted correctly.

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Decommissioning/storage EVK2_CP/EVM2-CP_LIC - Optical sensor positioning devices with CAN-Bus-Interface and LIC

10 Decommissioning/storage 10.1 Authorised personnel The device is to be dismantled for the decommissioning period by the customer's trained maintenance personnel.

10.2 Storage The machine must be stored in the factory packaging in dry halls that are maintained at a moderate temperature (storage temperature between 0 and 40 °C). NOTICE Seals lose their elasticity and thus their full functional effiency Results in possible damage to the product. 1. In the event of longer storage times it is imperative that the regulations for storage conditions and storage periods of rubber materials are observed.

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Disposal EVK2_CP/EVM2-CP_LIC - Optical sensor positioning devices with CAN-Bus-Interface and LIC

11 Disposal 11.1 General information Disposal by the customer must be conducted in accordance with the local applicable legal regulations while observing ecological factors. When disposing of components which have not been produced by the manufacturing company, the corresponding instructions in the relevant "company documentation" are to be observed.

11.2 Materials Materials must be sorted according to material group (aluminium, steel, plastic, electronic components etc.) and transferred to the appropriate collecting points.

11.3 Disposal regulations When disposing of the item the relevant national and regional laws and regulations must be adhered to.

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Index EVK2_CP/EVM2-CP_LIC - Optical sensor positioning devices with CAN-Bus-Interface and LIC

Index A Aligning the measuring photocell with the strip pass level, 21 Application, 6 Arrangement of HF measuring and reference photocells, 18, Arrangement of sensor positioning devices and light units in the plant, 17 Arrangement of the EVM and light units in the plant, 17 Arranging the reference photocells in the strip pass direction, 21

C CAN bus addressing, 24 CAN-Bus transfer rate, 24 Checking the limit switch function of the EVK, 19 Commissioning of the sensor positioning device, 19 Controls and Display elements, 14

E Electronics board EVK2.11, components, 14

I Installing the control electronics, 18 Installing the EVK2.11 replacement card, 27 Installing the measuring equipment, 17 Intendend usage, 10

M Maintenance intervals, 25 modes of operation, 23

P Product description, 5

S Safety , 9

T Technical Data EVK, 6 Technical data EVM, 7 Technical data LIC, 7 Temperature range, 7

W Weight, 7

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Ba Evk Evk2-Cp Evm-cp Lic 01 en Version 02

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