Pepperl+Fuchs SC4-2 Manuale utente

FACTORY AUTOMATION

CONTROL UNIT SC4-2

INSTRUCTION MANUAL

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"

Control unit SC4-2

1 SC4 control system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

1.1 Intended use. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

1.2 Product description and features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2 Declaration of conformity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

3 The SC4-2 control unit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

3.1 Product description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

3.2 Working principle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

3.3 Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

3.4 SC4-2 connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

3.5 SC4-2 displays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

4 Operating modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

4.1 Start/restart interlock (Restart) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

4.2 Relay monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

5 Setup and assembly of the light barriers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

6 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

6.1 SLA light barriers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

6.2 Message outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

6.3 Safety outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Control unit SC4-2

7 Commissioning. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26

7.1 Adjust protective beams. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

7.2 Layout with adjustable mirror . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

7.3 Verifying functionality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

7.3.1 Test of detection capability of the installed electrosensitve protection device. . . . . . . . . . . . . . . . . . 27

7.3.2 Test of start/restart interlock and startup enable (restart/start) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

7.3.3 Testing the test/reset connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

7.3.4 Test of relay monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

7.3.5 Principle of operation of the OSSD outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

8 Periodic checkup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29

9 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30

10 Technical data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32

10.1 Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

10.2 Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

10.3 Accessories. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

10.4 Ordering information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

11 Sample circuits for SC4-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35

12 Glossary. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

13 Standards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38

13.1 Construction and equipping of protective equipment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38

13.2 Use and installation of protective equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

14 Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40

Control unit SC4-2

Please note!

These operatcontroling instructions contain information on the intended use of the product and serve to pro-

tect 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.

The warrantee undertaken by Pepperl+Fuchs 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.

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. 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 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 or authorized

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

perl+Fuchs devices and components.

Repair tasks made on the product that are not performed by Pepperl+Fuchs are not subject to influence on

the part of Pepperl+Fuchs.

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

Control unit SC4-2

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!

Symbols used

This manual uses symbols to present important information on operating the SC4-2 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

SC4-2.

Refers to a hazard or an immediate danger.

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

Control unit SC4-2

14 SC4 control system

14.1 Intended use

In combination with light barriers of type SLA, the SC4 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 requi-

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

14.2 Product description and features

The SC4 analysis system is an electrosensitive protection device of Type 4 (EN IEC 61496-1)or

Category 4 (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

-Functionreservedisplay on each receiver

- 7-segment display 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.

Control unit SC4-2

15 Declaration of conformity

This product was developed and manufactured under observance of the applicable European standards and

guidelines.

The product manufacturer, Pepperl+Fuchs GmbH, D-68307 Mannheim, has a certified quality assurance

system that conforms to ISO 9001.

Note!

A Declaration of Conformity can be requested from the manufacturer.

Note!

See technical data for applied harmonized standards.

ISO9001

Control unit SC4-2

16 The SC4-2 control unit

16.1 Product description

With its light barriers of Type SLA, the SC4-2 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.

16.2 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.

A safety-related microprocessor control system permanently monitors the functionality of the light barriers

and the internal safety system. This ensures that errors are detected within the defined response time of the

system and that they result in the OSSDs being turned off.

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

on the "Readiness for startup" output (flashes at a rate of once per second) and the 7-segment display on the

SC4-2 displays the error that was detected.

The startup / restart lock and monitoring of EDM feedback (relay monitor) can be turned on or off as required

with switches on the SC4-2.

If the start/restart interlock is activated on the control unit, the "Restart" (Start) output is turned on if the light

beams are free.

Control unit SC4-2

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

turning off the operating voltage.

16.3 Layout

An electrosensitive protection device of the type des-

cribed here consists of:

- An SC4-2 control unit (light barrier module, OSSD

module)

- One or two light barriers of Type SLAxx

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

ternating current)

The SC4-2 is housed in a case suitable for mounting

on a top hat section rail. The installation width is

45 mm.

The following operating modes can be set as desired

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 16.1: SC4-2 control unit

Light-barrier module

SD-module

OFF

START

SC4-2

   

       

   

      

       

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