SICK deTem4 Core Ex II 3GD Operating instructions

O P E R A T I N G I N S T R U C T I O N S

deTem4 Core Ex II 3GD

Multiple light beam safety device

Described product

deT

em4 Core Ex II 3GD

Manufacturer

SICK AG

Erwin-Sick-Str. 1

79183 Waldkirch

Germany

Legal information

T

his work is protected by copyright. Any rights derived from the copyright shall be

reserved for SICK AG. Reproduction of this document or parts of this document is only

permissible within the limits of the legal determination of Copyright Law. Any modifica‐

tion, abridgment or translation of this document is prohibited without the express writ‐

ten permission of SICK AG.

The trademarks stated in this document are the property of their respective owner.

Original document

T

his document is an original document of SICK AG.

2

O P E R A T I N G I N S T R U C T I O N S | deTem4 Core Ex II 3GD 8021811/14Q7/2020-04-27 | SICK

Subject to change without notice

Contents

1 About this document........................................................................ 6

1.1 Function of this document....................................................................... 6

1.2 Scope......................................................................................................... 6

1.3 Target groups of these operating instructions........................................ 6

1.4 Additional information.............................................................................. 6

1.5 Symbols and document conventions...................................................... 7

2 Safety information............................................................................ 8

2.1 General safety notes................................................................................ 8

2.2 Intended use............................................................................................. 8

2.3 Improper use............................................................................................. 9

2.4 Requirements for the qualification of personnel.................................... 9

3 Product description........................................................................... 10

3.1 Setup and function................................................................................... 10

3.2 Product characteristics............................................................................ 11

3.2.1 Device overview....................................................................... 11

3.2.2 Status indicators...................................................................... 11

3.3 Example applications............................................................................... 13

4 Project planning................................................................................ 14

4.1 Manufacturer of the machine.................................................................. 14

4.2 Operating entity of the machine.............................................................. 14

4.3 Design........................................................................................................ 14

4.3.1 Minimum distance from the hazardous point....................... 15

4.3.2 Minimum distance from reflective surfaces.......................... 17

4.3.3 Protection against interference from systems in close prox‐

imit

y to each other................................................................... 19

4.4 Integrating into the electrical control....................................................... 19

4.4.1 Restart interlock...................................................................... 22

4.4.2 External device monitoring (EDM).......................................... 22

4.4.3 Connection diagrams.............................................................. 23

4.5 Testing plan............................................................................................... 23

4.5.1 Test rod check.......................................................................... 24

4.5.2 Visual check of the machine and the protective device........ 26

5 Mounting............................................................................................. 27

5.1 Safety......................................................................................................... 27

5.2 Unpacking.................................................................................................. 27

5.3 Mounting................................................................................................... 28

5.3.1 Mounting the QuickFix bracket............................................... 31

5.3.2 Mounting the FlexFix bracket.................................................. 32

5.3.3 Mounting the replacement bracket........................................ 35

5.4 Affixing labels............................................................................................ 35

CONTENTS

8021811/14Q7/2020-04-27 | SICK O P E R A T I N G I N S T R U C T I O N S | deTem4 Core Ex II 3GD

3

Subject to change without notice

6 Electrical installation........................................................................ 37

6.1 Safety......................................................................................................... 37

6.2 System connection (M12, 5-pin)............................................................. 38

6.3 System connection via connection cable (M12, 5-pin to 8-pin)............ 39

7 Commissioning.................................................................................. 40

7.1 Safety......................................................................................................... 40

7.2 Overview.................................................................................................... 41

7.3 Switching on.............................................................................................. 41

7.4 Sender and receiver alignment................................................................ 41

7.4.1 Aligning the sender and receiver............................................ 42

7.4.2 Aligning the sender, receiver, and deflector mirror................ 42

7.4.3 Alignment with the QuickFix bracket...................................... 43

7.4.4 Alignment with the FlexFix bracket or with the upgrade

br

acket...................................................................................... 44

7.4.5 Indication of the alignment quality......................................... 45

7.5 Check during commissioning and modifications.................................... 46

8 Operation............................................................................................ 47

8.1 Safety......................................................................................................... 47

8.2 Regular thorough check........................................................................... 47

9 Maintenance...................................................................................... 48

9.1 Safety......................................................................................................... 48

9.2 Regular cleaning....................................................................................... 48

9.3 Regular thorough check........................................................................... 49

10 Troubleshooting................................................................................. 50

10.1 Safety......................................................................................................... 50

10.2 Diagnostic LEDs........................................................................................ 50

10.2.1 Fault indicators........................................................................ 50

11 Decommissioning............................................................................. 53

11.1 Disposal..................................................................................................... 53

12 Technical data.................................................................................... 54

12.1 Data sheet................................................................................................. 54

12.2 Table of weights........................................................................................ 56

12.3 Dimensional drawings.............................................................................. 57

13 Ordering information........................................................................ 58

13.1 Scope of delivery....................................................................................... 58

13.2 Ordering information................................................................................. 58

14 Accessories........................................................................................ 59

14.1 Brackets.................................................................................................... 59

14.2 Mounting accessories.............................................................................. 60

CONTENTS

4

O P E R A T I N G I N S T R U C T I O N S | deTem4 Core Ex II 3GD 8021811/14Q7/2020-04-27 | SICK

Subject to change without notice

14.3 Connectivity............................................................................................... 60

14.4 Alignment aid............................................................................................ 61

14.5 Deflector mirrors....................................................................................... 62

14.5.1 Function and use..................................................................... 62

14.5.2 Change in scanning range using deflector mirrors................ 62

14.5.3 Deflector mirror – ordering information................................. 62

14.5.4 Deflector mirror PNS75 - ordering information...................... 62

14.5.5 Deflector mirror PNS125 - ordering information................... 63

14.6 Mirror columns.......................................................................................... 63

14.7 Device columns......................................................................................... 63

14.8 Accessories for mirror columns and device columns............................. 63

14.9 Cleaning agent.......................................................................................... 64

14.10 Test rods.................................................................................................... 64

15 Annex.................................................................................................. 65

15.1 Compliance with EU directives................................................................. 65

15.2 Note on specified standards.................................................................... 66

15.3 Checklist for initial commissioning and commissioning........................ 67

16 List of figures..................................................................................... 68

17 List of tables....................................................................................... 69

CONTENTS

8021811/14Q7/2020-04-27 | SICK O P E R A T I N G I N S T R U C T I O N S | deTem4 Core Ex II 3GD

5

Subject to change without notice

1 About this document

1.1 Function of this document

These operating instructions contain the information needed during the life cycle of the

mult

iple light beam safety device.

Operating instructions of the multiple light beam safety device must be made available

to all people who work with the device.

Please read these operating instructions carefully and make sure that you understand

the content fully before working with the multiple light beam safety device.

1.2 Scope

These operating instructions only apply to the deTem4 Core Ex II 3GD multiple light

be

am safety devices with the following type label entries in the “Operating Instructions”

field:

•

8021809

This document is included with the following SICK part numbers (this document in all

available language versions):

8021809

1.3 Target groups of these operating instructions

Some chapters of these operating instructions are intended for certain target groups.

Ho

wever, the entire operating instructions are relevant for intended use of the product.

Table 1: Target groups and selected chapters of these operating instructions

Target group Chapters of these operating instructions

Project developers

(

planners, developers,

designers)

"Project planning", page 14

"Technical data", page 54

see "Accessories", page 59

Installers "Mounting", page 27

Electricians "Electrical installation", page 37

Safety experts (such

a

s CE authorized rep‐

resentatives, compli‐

ance officers, people

who test and approve

the application)

"Project planning", page 14

"Commissioning", page 40

"Technical data", page 54

"Checklist for initial commissioning and commissioning", page 67

Operators "Operation", page 47

"T

roubleshooting", page 50

Maintenance person‐

ne

l

"Maintenance", page 48

"Troubleshooting", page 50

1.4 Additional information

www.sick.com

T

he following information is available on the Internet:

•

This document in other languages

•

Data sheets and application examples

•

CAD data and dimensional drawings

1 A

BOUT THIS DOCUMENT

6

O P E R A T I N G I N S T R U C T I O N S | deTem4 Core Ex II 3GD 8021811/14Q7/2020-04-27 | SICK

Subject to change without notice

•

C

ertificates (e.g. EU declaration of conformity)

•

Guide for Safe Machinery Six steps to a safe machine

1.5 Symbols and document conventions

The following symbols and conventions are used in this document:

Safety notes and other notes

DANGER

Indic

ates a situation presenting imminent danger, which will lead to death or serious

injuries if not prevented.

WARNING

Indic

ates a situation presenting possible danger, which may lead to death or serious

injuries if not prevented.

CAUTION

Indic

ates a situation presenting possible danger, which may lead to moderate or minor

injuries if not prevented.

NOTICE

Indic

ates a situation presenting possible danger, which may lead to property damage if

not prevented.

NOTE

Indic

ates useful tips and recommendations.

Instructions to action

b

The arrow denotes instructions to action.

1. The sequence of instructions for action is numbered.

2. Follow the order in which the numbered instructions are given.

✓

The check mark denotes the result of an instruction.

LED symbols

These symbols indicate the status of an LED:

o

The LED is off.

Ö

The LED is flashing.

O

The LED is illuminated continuously.

Sender and receiver

T

hese symbols indicate the sender and receiver of the device:

s

The symbol indicates the sender.

r

The symbol indicates the receiver.

ABOUT THIS DOCUMENT 1

8021811/14Q7/2020-04-27 | SICK O P E R A T I N G I N S T R U C T I O N S | deTem4 Core Ex II 3GD

7

Subject to change without notice

2 Safety information

2.1 General safety notes

DANGER

If t

he safety component is integrated incorrectly, the dangerous state may be ended to

late.

b

Plan the integration of the safety component in accordance with the machine

requirements, see "Project planning", page 14.

WARNING

Ris

k of ineffectiveness of the protective device

Please observe the following information to ensure safe and correct use of the device.

b

Special national and international regulations and guidelines apply for the mount‐

ing, use, commissioning, and regular technical inspection of electrical devices in

explosion-hazardous areas, in particular ATEX Directive 2014/34/EU and the

IECEx scheme. Manufacturers of and entities operating machines using the multi‐

ple light beam safety device are responsible for ensuring that all applicable safety

regulations and guidelines are complied with.

b

These operating instructions must be made available to the operator of the

machine on which the device is used. Qualified safety personnel must instruct the

operator on how to use the device. The operator must also be directed to read and

follow the operating instructions.

DANGER

Ris

k of ignition

Failure to observe this instruction can result in a risk of ignition from potential sparking.

b

Ensure that only accessories that are approved for explosion-hazardous areas are

used.

NOTICE

U

V radiation can reduce the service life and resistance of the front screen. When used

in an explosion proof area, the front screen may not be exposed to any UV radiation

(e.g., sunlight).

b

Select a mounting position in which the front screen is not exposed to UV radia‐

tion.

NOTICE

Mec

hanical loads

The device passes the impact test required by the applicable standards.

Plastic device components must not be subjected to mechanical loads greater than

4 joules.

Transparent parts (front screen) must not be subjected to mechanical loads greater

than 2 joules.

2.2 Intended use

The deTem4 Core Ex II 3GD multiple light beam safety device is an electro-sensitive pro‐

t

ective device (ESPE) and is suitable for the following applications:

2 S

AFETY INFORMATION

8

O P E R A T I N G I N S T R U C T I O N S | deTem4 Core Ex II 3GD 8021811/14Q7/2020-04-27 | SICK

Subject to change without notice

•

S

ingle-sided access protection

•

Multi-sided access protection

The deTem4 Core Ex II 3GD multiple light beam safety device must only be used within

t

he limits of the prescribed and specified technical data and operating conditions at all

times.

Any instance of improper use, incorrect modification, or manipulation of the deTem4

Core Ex II 3GD multiple light beam safety device shall void any warranty provided by

SICK AG; furthermore, SICK AG shall not accept any responsibility or liability for any

resulting damage and consequential damage.

2.3 Improper use

The multiple light beam safety device works as an indirect protective measure and can‐

no

t provide protection from pieces thrown from application nor from emitted radiation.

Transparent objects are not detected.

Among others, the deTem4 Core Ex II 3GD multiple light beam safety device is not suit‐

able for the following applications:

•

Outdoors

•

Underwater

•

At altitudes over 3,000 m above sea level

•

In environments with increased levels of ionizing radiation

2.4 Requirements for the qualification of personnel

The protective device must be configured, installed, connected, commissioned, and ser‐

v

iced by qualified safety personnel only.

Project planning

For project planning, a person is considered competent when he/she has expertise and

experience in the selection and use of protective devices on machines and is familiar

with the relevant technical rules and national work safety regulations.

Mechanical mounting, electrical installation, and commissioning

For the task, a person is considered qualified when he/she has the expertise and expe‐

rience in the relevant field and is sufficiently familiar with the application of the protec‐

tive device on the machine to be able to assess whether it is in an operationally safe

state.

Operation and maintenance

For operation and maintenance, a person is considered competent when he/she has

the expertise and experience in the relevant field and is sufficiently familiar with the

application of the protective device on the machine and has been instructed by the

machine operator in its operation.

SAFETY INFORMATION 2

8021811/14Q7/2020-04-27 | SICK O P E R A T I N G I N S T R U C T I O N S | deTem4 Core Ex II 3GD

9

Subject to change without notice

3 Product description

3.1 Setup and function

Overview

T

he deTem4 Core Ex II 3GD multiple light beam safety device is an electro-sensitive pro‐

tective device (ESPE) consisting of a sender and receiver.

Parallel infrared light beams between the sender and receiver protect the hazardous

area. When one or more light beams are completely interrupted, the multiple light beam

safety device reports the interruption in the light path to the secure output signal

switching devices (OSSDs) by a signal change. The machine or its control must safely

analyze the signals (for example using a safe control or safety relays) and stop the dan‐

gerous state.

Sender and receiver automatically synchronize themselves optically. An electrical con‐

nection between both components is not required.

r

s

Figure 1: Sender and receiver

Beam separation and number of beams

T

he beam separation is the distance between two adjacent light beams, measured

from the center of one beam to the center of the next.

The beam separation and number of beams depend on the device variant.

Scanning range

T

he scanning range is the maximum dimension of the light path between sender and

receiver.

The scanning range is reduced by using deflector mirrors.

Further topics

•

"D

ata sheet", page 54

•

"Deflector mirrors", page 62

3 PRODUCT DESCRIPTION

10

O P E R A T I N G I N S T R U C T I O N S | deTem4 Core Ex II 3GD 8021811/14Q7/2020-04-27 | SICK

Subject to change without notice

3.2 Product characteristics

3.2.1 Device overview

!

"

!

Sender or receiver

"

System connection

3.2.2 Status indicators

Overview

T

he sender and receiver LEDs indicate the operational status of the multiple light beam

safety device.

Sender indicators

!

PWR

"

ERR

Figure 2: Sender indicators

T

wo light emitting diodes on the sender indicate the operational status:

PRODUCT DESCRIPTION 3

8021811/14Q7/2020-04-27 | SICK O P E R A T I N G I N S T R U C T I O N S | deTem4 Core Ex II 3GD

11

Subject to change without notice

Position LED color Display Labeling

!

Yellow Status indicator PWR

"

Red Fault indicator ERR

Receiver indicators

! OSSD

" ERR

1

2

3

4

§

Figure 3: Receiver indicators

Six light emitting diodes on the receiver indicate the operational status:

Position LED color Display Labeling

!

Red/green OSSD status OSSD

"

Red Fault indicator ERR

§

Blue Alignment quality 1, 2, 3, 4

The blue alignment quality light emitting diodes in combination with the red flashing

ER

R LED also denote faults.

Further topics

•

"Diagnostic LEDs", page 50

3 P

RODUCT DESCRIPTION

12

O P E R A T I N G I N S T R U C T I O N S | deTem4 Core Ex II 3GD 8021811/14Q7/2020-04-27 | SICK

Subject to change without notice

3.3 Example applications

Figure 4: Single-sided access protection

Figure 5: Multi-sided access protection

PRODUCT DESCRIPTION 3

8021811/14Q7/2020-04-27 | SICK O P E R A T I N G I N S T R U C T I O N S | deTem4 Core Ex II 3GD

13

Subject to change without notice

4 Project planning

4.1 Manufacturer of the machine

DANGER

H

azard due to lack of effectiveness of the protective device

Persons and parts of the body to be protected may not be recognized in case of non-

observance.

b

Use of the multiple light beam safety device requires a risk assessment. Check

whether additional protective measures are required.

b

Comply with the applicable national regulations derived from the application (e.g.,

work safety regulations, safety rules, or other relevant safety guidelines).

b

Do not combine the components of the multiple light beam safety device with

components from other multiple light beam safety devices.

b

Apart from the procedures described in this document, the components of the

multiple light beam safety device must not be opened.

b

The components of the multiple light beam safety device must not be tampered

with or changed.

b

Improper repair of the protective device can lead to a loss of the protective func‐

tion. Do not carry out any repairs on the device components.

4.2 Operating entity of the machine

DANGER

H

azard due to lack of effectiveness of the protective device

Persons and parts of the body to be protected may not be recognized in case of non-

observance.

b

Changes to the electrical integration of the multiple light beam safety device in the

machine control and changes to the mechanical mounting of the multiple light

beam safety device necessitate a new risk assessment. The results of this risk

assessment may require the operating entity of the machine to meet a manufac‐

turer’s obligations.

b

Apart from the procedures described in this document, the components of the

multiple light beam safety device must not be opened.

b

The components of the multiple light beam safety device must not be tampered

with or changed.

b

Improper repair of the protective device can lead to a loss of the protective func‐

tion. Do not carry out any repairs on the device components.

4.3 Design

Overview

This chapter contains important information about the design.

4 PROJECT PLANNING

14

O P E R A T I N G I N S T R U C T I O N S | deTem4 Core Ex II 3GD 8021811/14Q7/2020-04-27 | SICK

Subject to change without notice

Important information

DANGER

H

azard due to lack of effectiveness of the protective device

Persons and parts of the body to be protected may not be recognized in case of non-

observance.

b

Make sure that the following design requirements are met so that the multiple

light beam safety device can fulfill its protective function.

°

Sender and receiver must be arranged such that persons or parts of the body

are reliably detected when they enter the hazardous area.

°

Ensure that nobody can pass under the lowest light beam, pass over the

highest light beam, get between two light beams, or pass by the side of the

protective device.

°

If people can stay between the protective device and the hazardous point

without being detected, check if additional protective measures (e.g., restart

interlock) are required.

DANGER

H

azard due to lack of effectiveness of the protective device

Certain types of light radiation can influence the protective device, e.g., light radiation

from fluorescent lamps with electronic ballast installed in the path of the beam, or

beams from laser pointers directed at the receiver.

b

If this type of light radiation is present in the environment of the protective device,

take additional measures to ensure that the protective device does not become

dangerous.

Further topics

•

"Mount

ing", page 27

4.3.1 Minimum distance from the hazardous point

A minimum distance must be maintained between the multiple light beam safety

de

vice and the hazardous point. This distance is required to prevent a person or part of

the body from reaching the hazardous area before the dangerous state of the machine

state has completed.

Calculating the minimum distance according to ISO 13855

The calculation of the minimum distance is based on international or national stan‐

dards and statutory requirements applicable at the place of installation of the machine.

If the minimum distance is calculated according to ISO 13855, then it depends on the

following points:

•

Machine stopping time (time interval between triggering the sensor function and

the end of the machine’s dangerous state)

•

Response time of the protective device

•

Approach speed of personnel

•

Type of approach: orthogonal (at right angles)

•

Parameters specified based on the application

For the USA (scope of OSHA and ANSI), different regulations may apply, e.g.:

a) Laws: Code of Federal Regulations, Title 29 (CFR29) Part 1910.217

b) Standards: ANSI B11.19

PROJECT PLANNING 4

8021811/14Q7/2020-04-27 | SICK O P E R A T I N G I N S T R U C T I O N S | deTem4 Core Ex II 3GD

15

Subject to change without notice

Complementary information

A

dditional information is available in the ISO 13855 standard and in the Guidelines

Safe Machinery.

SICK offers a stopping/run-down time measurement service in many countries.

Further topics

•

"T

echnical data", page 54

4.3.1.1 Calculating minimum distance from the hazardous point

Important information

DANGER

Minimum dis

tance from the hazardous point is too small

The dangerous state of the machine may not be stopped or not be stopped in a timely

manner due to a minimum distance that is too small.

b

Calculate the minimum distances for the machine in which the multiple light beam

safety device is integrated.

b

When mounting the multiple light beam safety device, observe the minimum dis‐

tance.

Approach

T

he example shows the calculation of the minimum distance for an orthogonal (at right

angles) approach to the multiple light beam safety device. Depending on the applica‐

tion and the ambient conditions, a different calculation may be required (e.g., at a dif‐

ferent angle to the direction of approach or an indirect approach).

1. Calculate S using the following formula:

S = 1,600 mm/s × T + C

where:

°

S = minimum dis

tance in millimeters (mm)

°

T = machine stopping time + response time of the protective device after

interruption in the light path in seconds (s)

°

C = supplement in accordance with ISO 13855:

•

If it is not possible to reach over the protective device: C = 850 mm

•

If it is possible to reach over the protective device, the value C

RO

must be

used for C in accordance with ISO 13855, provided that this is greater

than 850 mm: C ≥ 850 mm and C ≥ C

RO

The reach/approach speed is already included in the formula.

4 P

ROJECT PLANNING

16

O P E R A T I N G I N S T R U C T I O N S | deTem4 Core Ex II 3GD 8021811/14Q7/2020-04-27 | SICK

Subject to change without notice

!

"

§

S

Figure 6: Minimum distance from the hazardous point

!

Height of the light beams above ground

"

Hazardous point

§

Depending on the application and distance, persons must be prevented from standing

be

hind the protective device.

Example calculation

Mac

hine stopping time = 290 ms

Response time after interruption of the light path = 20 ms

T = 290 ms + 20 ms = 310 ms = 0.31 s

S = 1,600 mm/s × 0.31 s + 850 mm = 1,346 mm

4.3.2 Minimum distance from reflective surfaces

Overview

T

he light beams from the sender may be deflected by reflective surfaces and dispersive

media. This can prevent an object from being detected.

Therefore, all reflective surfaces and objects (e.g., material bins, machine table, etc.)

must maintain a minimum distance (a) from the light beams. This minimum distance

(a) must be maintained on all sides of the light beams. This applies in horizontal, verti‐

cal and diagonal directions as well as at the end of the device. The same area must be

free of dispersive media (e.g., dust, fog, or smoke).

The minimum distance (a) depends on the distance (D) between sender and receiver.

PROJECT PLANNING 4

8021811/14Q7/2020-04-27 | SICK O P E R A T I N G I N S T R U C T I O N S | deTem4 Core Ex II 3GD

17

Subject to change without notice

rs

D

a

Figure 7: Minimum distance from reflective surfaces

Important information

DANGER

H

azard due to lack of effectiveness of the protective device

Reflective surfaces and dispersive media can prevent persons or parts of the body to

be protected from being properly reflected and therefore, they remain undetected.

b

Make sure that all reflective surfaces and objects maintain a minimum distance

from the light beams.

b

Make sure that no dispersive media (e.g., dust, fog, or smoke) are within the calcu‐

lated minimum distance from the light beams.

Determining minimum distance to reflective surfaces

T

he minimum distance can be determined as follows:

b

Determine the distance between sender and receiver D in meters (m).

b

Read the minimum distance a in millimeters (mm) in the graph or calculate using

the respective formula to determine the minimum distance to reflective surfaces:

10 20 30 40 50 60 70 D/

m

500

1000

2000

1500

2500

3000

3500

a/mm

131

3

Figure 8: Graph, minimum distance from reflective surfaces

T

able 2: Formula for calculating the minimum distance from reflective surfaces

Distance between sender and

r

eceiver D in m

Calculating the minimum distance from reflective sur‐

faces a in mm

D ≤ 3 m a = 131 mm

D > 3 m a = tan (2.5°) × 1,000 mm/m × D = 43.66 × 1 mm/m ×

D

4 PROJECT PLANNING

18

O P E R A T I N G I N S T R U C T I O N S | deTem4 Core Ex II 3GD 8021811/14Q7/2020-04-27 | SICK

Subject to change without notice

4.3.3 Protection against interference from systems in close proximity to each other

Overview

s

rs

r

!

"

Figure 9: Preventing mutual interference from system

1

and system

2

The infrared light beams of the sender of system 1 can interfere with the receiver of

system 2. This can disrupt the protective function of system 2. This would mean that

the operator is at risk.

Avoid such installation situations or take appropriate action, e.g., install optically

opaque partitions or reverse the direction of transmission of a system.

Important information

DANGER

H

azard due to lack of effectiveness of the protective device

Systems of multiple light beam safety devices in close proximity to each other can

mutually interfere with each other.

b

Use suitable measures to prevent interference between systems in close proximity

to each other.

4.3.3.1 Using reversed direction of transmission

The direction of transmission of the system " c

an be changed during mounting by

switching the positions of the sender and receiver. With reversed direction of mounting,

the receiver " is not affected by the infrared light from the sender !.

"

!

s

rs

r

Figure 10: Trouble-free operation due to reversed direction of transmission of system

1

and sys‐

tem

2

4.4 Integrating into the electrical control

This chapter contains important information about integration in the electrical control.

Inf

ormation about the individual steps for electrical installation of the device: see "Elec‐

trical installation", page 37.

PROJECT PLANNING 4

8021811/14Q7/2020-04-27 | SICK O P E R A T I N G I N S T R U C T I O N S | deTem4 Core Ex II 3GD

19

Subject to change without notice

Requirements for use

T

he output signals of the protective device must be analyzed by downstream controllers

in such a way that the dangerous state of the machine is ended safely. Depending on

the safety concept, the signal is analyzed by, e.g., safety relays or a safety controller.

DANGER

H

azard due to lack of effectiveness of the protective device

In the case of non-compliance, it is possible that the dangerous state of the machine

may not be stopped or not stopped in a timely manner.

b

Make sure that the following control and electrical requirements are met so that

the multiple light beam safety device can fulfill its protective function.

•

It mus

t be possible to electrically influence the control of the machine.

•

The electrical control of the machine must meet the requirements of IEC 60204-1.

•

Depending on the regulations which apply at the place of installation, a restart

interlock may be required. Because the multiple light beam safety device does not

have this function, it must be implemented in the external control if required.

•

When using a safety controller, different signal levels of both OSSDs must be

detected depending on the regulations which apply at the place of installation or

the required reliability of the safety function. The maximum discrepancy time toler‐

ated by the control must be selected according to the application.

•

The OSSD1 and OSSD2 output signals must not be connected to each other.

•

In the machine controller, the signals of both OSSDs must be processed sepa‐

rately.

Figure 11: Dual-channel and isolated connection of OSSD1 and OSSD2

•

T

he machine must switch to the safe state at any time if at least one of the two

OSSDs switches to the OFF state.

•

Prevent the formation of a potential difference between the load and the protec‐

tive device. If you connect loads to the OSSDs (output signal switching devices)

that then also switch if controlled with negative voltage (e.g., electro-mechanical

contactor without reverse polarity protection diode), you must connect the 0 V con‐

nections of these loads and those of the corresponding protective device individu‐

ally and directly to the same 0 V terminal strip. In the event of a fault, this is the

only way to ensure that there can be no potential difference between the 0 V con‐

nections of the loads and those of the corresponding protective device.

4 P

ROJECT PLANNING

20

O P E R A T I N G I N S T R U C T I O N S | deTem4 Core Ex II 3GD 8021811/14Q7/2020-04-27 | SICK

Subject to change without notice

Page is loading ...

SICK deTem4 Core Ex II 3GD Operating instructions

SICK deTem4 Core Ex II 3GD Operating instructions

Related papers

Other documents