ASO Safety Solutions Elmon SK41 Owner's manual

Betriebsanleitung (Original)

SK 41 Sicherheitsschaltgerät

Seite 3-11

SK 41

Manuel d’ulisaon

SK 41 Relais de sécurité

Operang Manual

SK 41 Safety Relay41 Safety Relay Safety RelayRelay

Manuale di istruzione

SK 41 Relè di sicurezza41 Relè di sicurezza Relè di sicurezzaRelè di sicurezza di sicurezza

EnglishFrançais

Page 13-21

Page 23-31

Italiano

Pagina 33-41

Gebruiksaanwijzing

SK 41 Veiligheidsrelais

Nederlands

Pagina 43-51

Deutsch

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13

SK 41 Safety Relay Safety RelayRelay

2. General safety regulaons and protecve measures

• The manufacturer and users of the plant / machine on which the protecon is being used are responsible

for implemenng and following all applicable safety regulaons and rules.

• When used in conjuncon with the higher-order controller, the protecon guarantees funconal safety,

but not the safety of the enre plant / machine. The safety of the enre plant / machine must, therefore,

be assessed before using the device.

• The operang instrucons must always be available at the place of installaon of the protecon.

They must be read thoroughly and observed by all persons involved in the operaon, maintenance and

servicing of the protecon.

1. Contents

1. Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

2.

General safety regulaons and protecve measures

. . . 13

3. General. . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

4. Proper use . . . . . . . . . . . . . . . . . . . . . . . . . . 14

5. Device overview. . . . . . . . . . . . . . . . . . . . . . . 15

5.1 Signal indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

5.2 Connecon terminals . . . . . . . . . . . . . . . . . . . . . . . . 15

5.3 Versions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

5.4 Operang modes . . . . . . . . . . . . . . . . . . . . . . . . . . 16

6. Mechanical mounng. . . . . . . . . . . . . . . . . . . . 16

7. Electrical commissioning . . . . . . . . . . . . . . . . . . 16

7.1 Prerequisites. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

7.2 Electrical connecon . . . . . . . . . . . . . . . . . . . . . . . . 17

7.3 Connecon of mulple sensors per sensor circuit . . . . . . . . 17

7.4 Funconal test. . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

8. Error diagnosis. . . . . . . . . . . . . . . . . . . . . . . . 18

9. Examples of use . . . . . . . . . . . . . . . . . . . . . . . 19

10. Taking out of service and disposal . . . . . . . . . . . . . 20

11. Technical specicaons . . . . . . . . . . . . . . . . . . . 20

12. EC declaraon of conformity . . . . . . . . . . . . . . . . 21

We reserve the right to make technical and operaonally relevant changes to the

products and devices described in this documentaon at any me and without prior

noce.

English

14

SK 41 Safety Relay Safety RelayRelay

For the design of the safety system to conform to engineer standards, the plant

must be professionally inspected at appropriate intervals for proper funcon.

The inspecon must be documented in such a way as to be comprehensible at all

mes.

• The protecon must only be installed and commissioned by professionals familiar with these operang

instrucons and the applicable operaonal safety and accident prevenon regulaons. All of the instruc-

ons provided in these operang instrucons must be observed and followed.

• All electrical work must only be performed by skilled electricians.

• All relevant electrical engineering and Employer's Liability Insurance Associaon safety regulaons must

be observed.

• During work on the switching unit, it is to be switched to zero potenal and checked to ensure that it is

at zero potenal and protected against being restarted.

• If the potenal-free contacts of the relay switching contacts are supplied externally with a dangerous

voltage, make certain that these outputs are also switched o during work on the switching unit.

• The switching unit does not contain any components that require servicing by the user. Unauthorised

conversions and repairs made to the switching unit will void all guarantees and the manufacturer’s

liability.

3. General

The SK 41 switching unit, designed with one channel, is used for evaluang safety contact mats and for

safeguarding locaons where there is a risk of crushing and cung through the use of safety contact edges

and safety bumpers.

The SK 41 switching unit is designed and type-approved in accordance with EN ISO 13849-1 "Safety-related

parts of control systems" for Cat. 3 Performance Level d. To meet Cat. 3 requirements, the switching unit has

a redundant structure with two, two-way polling, forcibly actuated safety relays per channel.

Monitoring of the standby current is made possible by an integrated terminang resistor in the sensor. If the

specied standby current is owing, the output relays are acvated and the switching contacts are closed. If

the sensor is actuated or the sensor circuit is interrupted, the relay switching contacts open.

The monitoring state of the sensor and the applied operang voltage are indicated by LEDs.

4. Proper use

The switching unit is intended to be used as protecon in combinaon with safety contact mats, safety bumpers

and safety contact edges with 8.2 kΩ resistor for standby-current monitoring.

Any uses above and beyond these uses constute improper use. The manufacturer assumes no liability for

damages arising from improper use.

The device may only be used in special applicaons with the manufacturer’s express consent.

English

15

Fault

Actuate

Aux. Relay

Power

Z1 Z2 S11 S12

B1 B2 X1 X2

A1 A2 31 32

13 14 23 24

SK 41

5. Device overview

5.1 Signal indicator

LED Power - green

Supply voltage

LED Actuate - yellow

Sensor actuated

LED Fault - red

Sensor circuit interrupted

LED AUX. Relay - yellow

Auxiliary output switched

5.2 Connecon terminals

A1 A2 Supply voltage 230 V 50/60 Hz (SK 41-32)

A1 A2 Supply voltage 115 V 50/60 Hz (SK 41-82)

B1 B2 Supply voltage 24 V AC/DC

X1 X2 Sensor connecon

13 14 Safety-relay switching contact 1

23 24 Safety-relay switching contact 2

31 32 Auxiliary relay switching contact

Z1 Z2 Connecon of manual reset

S11 S12 Coding inputs reset

5.3 Versions

Version SK 41-32 SK 41-32 RLU SK 41-82 SK 41-82 RLU

Housing Housing, 22.5 mm wide, made of polyamide for 35 mm DIN rail mounng

acc. to EN 60715.

Supply voltage 230 V 50/60 Hz

and 24 V AC/DC

230 V 50/60 Hz

and 24 V AC/DC

115 V 50/60 Hz

and 24 V AC/DC

115 V 50/60 Hz

and 24 V AC/DC

Auxiliary relay

(switching contact

31 32)

In the event of

an actuaon or

an error of the

sensor, switches

aer 1 sec. for

3 sec.

Switches as long

as the sensor is

actuated or a

sensor error is

signalled.

In the event of

an actuaon or

an error of the

sensor, switches

aer 1 sec. for

3 sec.

Switches as long

as the sensor is

actuated or a

sensor error is

signalled.

English

16

5.4 Operang modes

Separate or serial output of the control circuits (redundant roung

of the switching contacts)

Automac reset (factory seng, S11 S12 unbridged)

Aer actuaon / failure of the sensor or aer a power failure, the switching unit automacally re-enables

the

control

circuits.

Manual reset (bridge S11 S12)

Aer actuaon / failure of the sensor or aer a power failure, the switching unit does not re-enable

the

control

circuits unl the reset push-buon has been actuated (terminals Z1 Z2).

Constant actuaon or bypassing of the reset push-buon is not possible.

6. Mechanical mounng

The switching unit must be professionally mounted:

- Installaon in a Polluon Degree 2 environment.

- In a dust- and moisture-protected switching cabinet or housing.

- With a protecon class of at least IP54.

- On a 35 mm DIN mounng rail acc. to EN 50 022.

- For reasons related to thermal convecon, when installing two or more switching

units, maintain a minimum distance of one housing thickness (approx. 3 cm)

between the units or to other installaons in order to prevent mutual heang.

Do not install the switching unit in the immediate vicinity of strong sources of heat.

The switching unit may be mounted in any orientaon.

7. Electrical commissioning

Connecng to the wrong terminals can destroy the switching unit.

7.1 Prerequisites

• The switching unit enables operaon at 230 V (115 V) or at 24 V.

• When supplying with 24 V AC/DC, the voltage must comply with the requirements for Safety Low Voltage

(SELV)

• The auxiliary terminal 31 32 serves only as an auxiliary terminal (signalling, display, etc.) and must not be

integrated in the safety circuit.

• Cables installed outdoors or outside of the switching cabinet must be protected appropriately.

SK 41 Safety Relay Safety RelayRelay

English

17

7.2 Electrical connection

• Connect supply voltage 230 V AC (115 V AC) to terminals A1 A2 or 24 V AC/DC to terminals B1 (+) B2 (-).

• Connect the sensor to terminals X1 X2.

• Connect the

control

circuit that is to be monitored to terminals 13 24. In the case of redundant roung

of the switching contacts, the factory-mounted jumper between terminals 14 23 is to be removed.

• For manual reset, bridge terminals S11 S12 (factory seng: autom. reset, S11 S12 not bridged) and

connect the reset push-buon to terminals Z1 Z2.

Upon successful commissioning, safety output 13 24 is acvated (relay contact "closed"). Actuaon of the

sensor causes relay contact 13 24 to open and the auxiliary relay to switch according to the given switching

unit version. This is indicated with the aid of the yellow Aux LED.

7.3 Connecon of mulple sensors per sensor circuit

ASO sensors must not be connected in parallel.

One or more sensors can be connected to the sensor input X1 X2. For this purpose, the individual sensors are

connected in series according to gure 1.

Safety edges SKL:

Up to ve SKL may be connected in series. The maximum total length o the SKL shall not exceed 100 m.

The length of one SKL may be up to 25 m. The total cable length o the in series connected SKL must not

exceed 25 m.

Safety bumper ASB:

Up to ve ASB may be connected in series. The maximum total length o the ASB shall not exceed 15 m. The

length of one ASB may be up to 3 m. The total cable length o the in series connected ASB must not exceed

25 m.

Safety contact mat ASK:

Up to ten ASK may be connected in series. The maximum total area shall not exceed 10 m

2

. The maximum size

of an ASK is 1350 x 2350 mm. The total cable length o the in series connected ASK must not exceed 25 m.

Before connecng the sensors that are connected in series, it is recommended that the resistance value of

the arrangement is to be measured. The resistance must be 8.2 kΩ ± 500 Ω when the sensor is inacve and

must not exceed 500 Ω when it is acve.

English

Sensor 1

Sensor 2

Sensor „n“

Figure 1: Wiring of mulple sensors; in this example: safety contact edge

2

X

1

X

2

22

18

SK 41 Safety Relay Safety RelayRelay

8. Error diagnosis

Only the green LED may illuminate if the supply voltage has been correctly connected. If the yellow or red LED

illuminates, there is an error in the system which can be pinpointed with the aid of the LED.

LED Error Error correcon

Green Power

LED does not

illuminate

The supply voltage is missing, too

low or has been connected incor-

rectly

Check connecons and supply voltage:

- 230 V AC (or 115 V) at terminals A1 A2 or

- 24 V AC/DC at terminal B1 B2

Tolerance range: ±10 %

Yellow Actuate

LED is illumi-

nated

Sensor actuated, incorrectly

connected or defecve

- Check the connecons of the corresponding

sensors (squeezed or brile supply lines, etc.)

- Check sensors*

Yellow Actuate

LED ashes

Operang mode "manual reset" only:

Sensor no longer actuated or inter-

rupted, switching unit waits for reset

pulse at Z1, Z2

Not an error, normal behaviour following an

error in "manual reset" mode (see 5.4)

Red Fault LEDs

illuminate

Sensor(s) not connected, connected

incorrectly or faulty

- Check the connecons of the corresponding

sensors (squeezed or brile supply lines, etc.)

- Check sensors*

* If the error is not in the wiring, the funcon of the electronics can be tested by connecng an 8.2 kΩ resistor

to the sensor input on the SK 41 switching unit (terminals X1 X2). If the electronics work perfectly aer

performing the test, the sensor must be checked using an ohmmeter. To do this, the connecon of the

sensor to the switching unit must be disconnected and connected to an ohmmeter. The resistance must

be 8.2 kΩ ±500 Ω when the sensor is inacve and must not exceed 500 Ω when the sensor is acve.

7.4 Functional test

The plant / machine must be tested for proper funcon aer all of the electrical connecons have been

established and the supply voltage has been turned on.

• Actuate the sensors in sequence.

• Check the switching units for proper reacon.

The safety system must be professionally inspected at appropriate intervals.

The inspecon must be documented in such a way as to be comprehensible at all mes.

The requirements of the plant/machine manufacturer are to be taken into account and followed.

English

19

9. Example of use

Safety related monitoring of a safety contact edge with start release via enable buon and separate roung

of the

control

circuits (safety category 3 compliant use acc. to EN ISO 13849-1).

For funconal test of contactors K1 and K2, the normally closed contacts of these contactors are integrated

in the start circuit (Z1 Z2).

The auxiliary relay output is used for visualising the switching state of the safety contact edge.

Circuit diagram in zero-potenal state. Sensor not actuated.

1 Sensor (edge, mat or bumper)

2 Enable buon

English

3

M

T1 T2 T3

SK 41

13

23 31

14

24 32

L1

L2

L3

N

PE

N

PE

L1

L2

L3

K1

K2

A1

A2

X1 X2

Z1 Z2

8,2 ΚΩ

S11 S12

B1

B2

1

2

20

SK 41 Safety Relay Safety RelayRelay

11. Technical specicaons

Supply voltage

Mains voltage

SK41-32 U

Mains

230 V AC 50/60 Hz

SK41-82 U

Mains

115 V AC 50/60 Hz

Low voltage U

E

24 V AC/DC ±10%24 V AC/DC ±10%

Power consumpon

P

Mains_max

= 3,3 VA

230 V AC (or 115 V)

P

E_max

= 1,5 W 24 V DC

P

E_max

= 2,1 VA 24 V AC

Cercaons

EN ISO 13849-1:2008 category 3 PL d

(MTTFd 329 years, DC 97 %)

(assumed 52,560 cycles)

Sensor terminal resistance

nominal value R

A

= 8,2 kΩΩ

upper switching point R

AO

> 11,5 kΩΩ

lower switching point R

AU

< 5,5 kΩΩ

Relay switching contact

Max. switching voltage 250 V ~ / 30 V -

Max. switching current 4 A AC/DC

Electrical life-me 10

5

actuaons

Safety relay switching mes

Response me < 13 ms

Turn-o me 1 Sek. ± 0,5 Sek.± 0,5 Sek. 0,5 Sek.

Auxiliary relay switching mes

Response me 0,5 Sek. ±0,3 Sek.±0,3 Sek.0,3 Sek.

Turn-o me 3 Sek. ±1 Sek.±1 Sek.1 Sek.

With the RLU version, the auxiliary relay switches in synch

with sensor actuaon.

Housing

polyamide PA 6.6

self-exnguishing acc. to UL 94-V2

Dimensions (HxWxD) 99 x 22,5 x 114 mm

Protecon class IP20

Weight 210 g

Temperature range -20 °C to +55 °C

Connecon cable cross-secon

Use Copper Conductors only, 60/75°C, 30-12 AWG

wire size, torque value 5-7 lb-in.

B2

24

23

14

13

X2

X1

B1A2A1

+Ub

R

ref

8,2 kΩ

U

ref

Logic

Simplied diagram SK 41

Cercate no.: 44 780 10 555564

Test report no.: 10 205 555564-002

10. Taking out of service and disposal

The products manufactured by ASO are intended solely for commercial use (B2B). At the end of use, the

products are to be disposed of according to all local, regional and naonal regulaons. Products can also be

returned to ASO, which will then dispose of them properly.

English

21

12. EC declaraon of conformity

We hereby declare that the following products of type series:

SK 41-32 (part no. 203201, serial number format yymmnnnnn)

SK 41-32 RLU (part no. 203202, serial number format yymmnnnnn)

SK 41-82 (part no. 203204, serial number format yymmnnnnn)

SK 41-82 RLU (part no. 203203, serial number format yymmnnnnn)

Safety relay to be used in combinaon with safety edges, safety contact mats and

safety bumpers for prevenng dangers at locaons where there is a risk of crushing

and cung sases the relevant essenal health and safety requirements of the EC

direcves and standards listed below on account of its design and construcon, as

does the version brought to market by us:

EC - machinery direcve 2006/42/EC

EN ISO 13849-1:2008

EN ISO 13849-2:2008

EN 61000-6-2:2005

EN 61000-6-3:2007

EC - type approval

Noed Body 0044

TÜV NORD CERT GmbH

Langemarckstraße 20

D-45141 Essen

EC type approval no.: 44 205 10 555564

This declaraon of conformity does not relieve the designer/manufacturer of the

machine from his obligaon to ensure that the conformity of the enre machine to

which this product is aached sases the corresponding EC direcve.

Manufacturer and Authorised Signatory:

ASO, Antriebs- und Steuerungstechnik GmbH,

Am Grarock 8, D-33154 Salzkoen / Germany

Salzkoen, XX.XX.2010

Helmut Friedrich

(General Manager and Authorised Signatory)

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52

Deutsch

English

Français

Italiano

Nederlands

11.DB.14.001 Technische Daten Rev 11

Technische Änderungen vorbehalten.

Für Irrtümer und Druckfehler kann keine Haung übernommen werden.

11.DB.14.001 Technical Specicaons Rev 11

Subject to technical modicaons.

No liability can be assumed for errors or misprints.

11.DB.14.001 Données techniques Rév 11

Sous réserve de modicaons techniques.

Nous déclinons toute responsabilité en cas d‘erreurs et de fautes d‘impression.

11.DB.14.001 Da tecnici Rev 11

Con riserva di modiche tecniche.

Si declina qualsiasi responsabilità per errori ed errori di stampa.

11.DB.14.001 Technische gegevens Rev 11

Technische wijzigingen voorbehouden.

Wij zijn niet aansprakelijk voor vergissingen en drukfouten.

Antriebs- und Steuerungstechnik

Am Grarock 8 • D-33154 Salzkoen

Tel.: +49 (0) 52 58/93 27-0 • Fax: +49 (0) 52 58/34 48

www.asosafety.com • e-mail: info@asosafety.com

ASO Safety Solutions Elmon SK41 Owner's manual

ASO Safety Solutions Elmon SK41 Owner's manual

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