Pepperl+Fuchs SC2-2 Bedienungsanleitung

Instruction manual

Control unit SC2-2

FACTORY AUTOMATION

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With regard to the supply of products, the current issue of the following document is applicable: The General

Terms of Delivery for Products and Services of the Electrical Industry,

published by the Central Association of the Electrical Industry (Zentralverband Elektrotechnik und Elektroin-

dustrie (ZVEI) e.V.)

in its most recent version as well as the supplementary clause: "Expanded reservation of proprietorship"

We at Pepperl+Fuchs/VISOLUX recognize a duty to make a contribution to the future.

For this reason, this printed matter is produced on paper bleached without the use of chlorine.

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Control unit SC2-2

Subject to reasonable modifications due to technical advances. Copyright Pepperl+Fuchs, Printed in Germany

Pepperl+Fuchs Group • Tel.: Germany (06 21) 7 76-0 • USA (330) 4 25 35 55 • Singapore 67 79 90 91 • Internet http://www.pepperl-fuchs.com

1 SC2 control system. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

1.1 Intended use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

1.2 Product description and features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

2 The SC2-2 control unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

2.1 Product description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

2.2 Working principle. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

2.3 Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

2.4 SC2-2 connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

2.5 SC2-2 displays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12

3 Operating modes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13

3.1 Start/restart interlock (Restart) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15

3.2 Relay monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15

4 Setup and assembly of the light barriers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17

5 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19

5.1 SL light barriers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20

5.2 Message outputs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21

5.3 Safety outputs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21

6 Commissioning. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22

6.1 Adjust protective beams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22

6.2 Layout with adjustable mirror . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22

6.3 Verifying functionality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23

6.3.1 Test of detection capability of the installed electrosensitive protection device . . . . . . . . . . . . . . . . . . . . . . . . . . .23

6.3.2 Test of start/restart interlock and startup enable (restart/start) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23

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Control unit SC2-2

Subject to reasonable modifications due to technical advances. Copyright Pepperl+Fuchs, Printed in Germany

Pepperl+Fuchs Group • Tel.: Germany (06 21) 7 76-0 • USA (330) 4 25 35 55 • Singapore 67 79 90 91 • Internet http://www.pepperl-fuchs.com

6.3.3 Testing the test connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23

6.3.4 Test of relay monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24

6.3.5 Principle of operation of the OSSD outputs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24

7 Periodic checkup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24

8 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25

9 Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27

9.1 Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27

9.2 Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29

9.3 Accessories. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30

9.4 Ordering information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30

10 Sample circuits for SC2-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31

11 Glossary. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33

12 Standards. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34

12.1 Construction and equipping of safety equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34

12.2 Use and installation of protective equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34

13 Certificates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35

14 Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36

Please note!

These operating instructions contain information on the intended use of the product and serve to protect

users from danger. They must be read and observed by all persons who implement, use, care for, maintain

and monitor this product. This product can only fulfill the tasks for which it is intended if it is used, cared for,

maintained and monitored in accordance with the instructions of Pepperl+Fuchs/Visolux.

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Control unit SC2-2

Subject to reasonable modifications due to technical advances. Copyright Pepperl+Fuchs, Printed in Germany

Pepperl+Fuchs Group • Tel.: Germany (06 21) 7 76-0 • USA (330) 4 25 35 55 • Singapore 67 79 90 91 • Internet http://www.pepperl-fuchs.com

The warrantee undertaken by Pepperl+Fuchs/Visolux for this product becomes null and void if it is not used,

cared for, maintained and monitored in accordance with the instructions of Pepperl+Fuchs/Visolux.

Before selecting and using the product, an evaluation must be performed to determine whether it is suitable

for the purpose in question. The selection and range of application are not subject to the influence of Pep-

perl+Fuchs/Visolux. Our liability is therefore limited to consistent quality of the product.

The product must be regularly monitored and maintained by professionals. The results of inspections and

maintenance tasks must be kept in logs. Only original Pepperl+Fuchs/Visolux parts must be used for repair

jobs.

Changes to the devices or components and the use of defective or incomplete devices or components are

not permitted. Repairs to devices or components may only be performed by Pepperl+Fuchs/Visolux or au-

thorized work shops. These work shops are responsible for acquiring the latest technical information about

Pepperl+Fuchs/Visolux devices and components.

Repair tasks made on the product that are not performed by Pepperl+Fuchs/Visolux are not subject to influ-

ence on the part of Pepperl+Fuchs/Visolux.

Our liability is thus limited to repair tasks that are performed by Pepperl+Fuchs/Visolux.

The preceding information does not change information regarding warrantee and liability in the terms and

conditions of sale and delivery of Pepperl+Fuchs.

This device contains sub-assemblies that are electrostatically sensitive. Only qualified specialists may open

the device to perform maintenance and repair tasks. Touching the components without protection involves

the risk of dangerous electrostatic discharge, and must be avoided. Destruction of basic components

caused by an electrostatic discharge voids the warrantee!

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Control unit SC2-2

Subject to reasonable modifications due to technical advances. Copyright Pepperl+Fuchs, Printed in Germany

Pepperl+Fuchs Group • Tel.: Germany (06 21) 7 76-0 • USA (330) 4 25 35 55 • Singapore 67 79 90 91 • Internet http://www.pepperl-fuchs.com

Symbols used

This manual uses symbols to present important information on operating the SC2-2 and working safely with

it. The meaning of these symbols is as follows:

Subject to technical modifications.

Recommendation for the user

Observing these notes will make it easier to place the system in operation and to work with the

SC2-2.

Refers to a hazard or an immediate danger.

Failure to observe such instructions may result in damage to property, serious injury or death.

Information

Danger!

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SC2-2 control unit

SC2 control system

Subject to reasonable modifications due to technical advances. Copyright Pepperl+Fuchs, Printed in Germany

Pepperl+Fuchs Group • Tel.: Germany (06 21) 7 76-0 • USA (330) 4 25 35 55 • Singapore 67 79 90 91 • Internet http://www.pepperl-fuchs.com

1 SC2 control system

1.1 Intended use

In combination with light barriers of type SLA, the SC2 control system represents a photoelectric protective

device. Protective beams are formed between transmitters and receivers.

Applicable safety rules, standards and requirements must be observed during usage, and the specific re-

quirements in the application in question must be taken into consideration.

1.2 Product description and features

The SC2 analysis system is a electrosensitive protection device of Type 2 (EN 61496-1 or IEC 61496-1)

or Category 2 (EN 954-1).

System features:

- Selectable start/restart interlock (restart interlock RI)

- Selectable relay monitor (RM)

- Red transmitter light for easy adjustment of light barriers

- Function reserve display on each receiver

- 2 LEDs to make it easy to pinpoint errors

This system must only be used in accordance with intended purpose as electrosensitive pro-

tection device for securing access to hazardous points and areas. Any use not in accordance

with these conditions does not comply with usage in accordance with the intended purpose.

Danger!

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SC2-2 control unit

The SC2-2 control unit

Subject to reasonable modifications due to technical advances. Copyright Pepperl+Fuchs, Printed in Germany

Pepperl+Fuchs Group • Tel.: Germany (06 21) 7 76-0 • USA (330) 4 25 35 55 • Singapore 67 79 90 91 • Internet http://www.pepperl-fuchs.com

2 The SC2-2 control unit

2.1 Product description

With its light barriers of Type SL, the SC2-2 control unit represents a one or two-beam photoelectric protec-

tive device. It consists of 2 modules,

- the OSSD Module with a 2-channel relay output (OSSD) and

- the light barrier module.

2.2 Working principle

Two protective beams are generated by the two light barriers that can be connected to the light barrier mo-

dule. Depending on the type of light barriers, the detection range of the protective beams may be 10 m,

30 m or 65 m. Interruptions in a light beam are determined by the light barrier module.The OSSDs and the

OSSD message output in the OSSD Module are turned off. Downstream equipment in the machine control

system responds by turning off the dangerous motion.

The startup/ restartlock and monitoring ofEDM feedback (relay monitor) can be turned on oroff as required

with switches on the SC2-2.

Internal tests ensure functional safety even if no external tests are performed. In addition, there is a test

input that the operator can use to initiate the test externally. The OSSDs are turned off when this happens.

If no errors are detected during the test, the OSSDs switch backon after 150 ms. If the start/restartinterlock

is activated on the control unit, the "Restart" (Start) function is turned on after the test has been successfully

completed.

If an error is detected by the test, the OSSDs remain in the Off state. In addition, a flashing signal is gene-

rated on the "Readiness for startup" output (flashes at a rate of once per second) and the two error LEDs

on the SC2-2 display the error that was detected.

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SC2-2 control unit

The SC2-2 control unit

Subject to reasonable modifications due to technical advances. Copyright Pepperl+Fuchs, Printed in Germany

Pepperl+Fuchs Group • Tel.: Germany (06 21) 7 76-0 • USA (330) 4 25 35 55 • Singapore 67 79 90 91 • Internet http://www.pepperl-fuchs.com

After the operating mode is changed or after an error is eliminated, a reset must be performed by briefly

turning off the operating voltage.

2.3 Layout

An electrosensitive protection device of the type

described here consists of:

- An SC2-2 control unit (light barrier module,

OSSD module)

- One or two light barriers of Type SLxx

- (Optionally) a power pack (for power supply with

alternating current)

The SC2-2 is housed in a case suitable for moun-

ting on a top hat section rail. The installation width

45 mm.

The following operating modes can be set as desi-

red with DIP switches that are accessible after the

case is opened

- Start/restart interlock (restart interlock RI)

- Relay monitor (RM)

(located in the light barrier module). Figure 2.1:SC2-2 control unit

Light-barrier module

OSSD-module

13 14 15 16

9 10 11 12

1 2 3 4

5 6 7 8

29 30 31 32

25 26 27 28

OFF

START

SC2-2

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SC2-2 control unit

The SC2-2 control unit

Subject to reasonable modifications due to technical advances. Copyright Pepperl+Fuchs, Printed in Germany

Pepperl+Fuchs Group • Tel.: Germany (06 21) 7 76-0 • USA (330) 4 25 35 55 • Singapore 67 79 90 91 • Internet http://www.pepperl-fuchs.com

Figure 2.2: Principle of operation of the SC2-2

2.4 SC2-2 connections

Terminals are used to connect the light barriers, inputs and outputs and the voltage supply. Four terminals

are combined to form each terminal block. These terminal blocks can be disconnected, thus making it easy

to switch devices.

A light barrier channel that is not in use is jumpered (see section 5.1)

Safety core

Emitter 1 Receiver 1

Light barriers

control

Test initiationTest

Restart

24 V DC

Restart

(RI)

Relay monitor

(RM)

Indicators

Signal outputs

OSSD-

control

Power supply

Emitter 2 Receiver 2

SC2-2

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