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Operating Instructions

Safety Switches STA...

Correct use

Safety switches series STA are interlocking de-

vices with guard locking (separate actuator). The

actuator has a low coding level. In combination

with a safety guard and the machine control, this

safety component prevents the safety guard from

being opened while a dangerous machine function

is being performed.
This means:

Starting commands that cause a dangerous ma-

chine function must become active only when the

safety guard is closed and locked.

The guard locking device must not be unlocked

until the dangerous machine function has ended.

Closing and locking a safety guard must not cause

automatic starting of a dangerous machine func-

tion. A separate start command must be issued.

For exceptions, refer to EN ISO 12100 or relevant

C-standards.

Devices from this series are also suitable for process

protection.
Before the device is used, a risk assessment must

be performed on the machine, e.g. in accordance

with the following standards:

EN ISO 13849-1, Safety of machinery. Safety re-

lated parts of control systems. General principles

for design

EN ISO 12100, Safety of machinery - General

principles for design - Risk assessment and risk

reduction

IEC 62061, Safety of machinery. Functional safety

of safety-related electrical, electronic and program-

mable electronic control systems.

Correct use includes observing the relevant require-

ments for installation and operation, particularly

based on the following standards:

EN ISO 13849-1, Safety of machinery. Safety re-

lated parts of control systems. General principles

for design

EN ISO 14119 (supersedes EN 1088), Safety of

machinery. Interlocking devices associated with

guards. Principles for design and selection

EN 60204-1, Safety of machinery. Electrical

equipment of machines. General requirements.

Important!

The user is responsible for the proper integration

of the device into a safe overall system. For this

purpose, the overall system must be validated,

e.g. in accordance with EN ISO 13849-2.

If the simplified method according to Section 6.3

of EN ISO 13849-1:2008 is used for determining

the Performance Level (PL), the PL might be re-

duced if several devices are connected in series.

Logical series connection of safe contacts is

possible up to PL d in certain circumstances.

More information about this is available in

ISO TR 24119.

If a product data sheet is included with the prod-

uct, the information on the data sheet applies

in case of discrepancies with the operating

instructions.

Safety precautions

WARNING

Danger to life due to improper installation or due

to bypassing (tampering). Safety components

perform a personal protection function.

Safety components must not be bypassed,

turned away, removed or otherwise rendered

ineffective. On this topic pay attention in partic-

ular to the measures for reducing the possibility

of bypassing according to EN ISO 14119:2013,

Sec. 7.

The switching operation must be triggered only

by actuators designated for this purpose.

Prevent bypassing by means of replacement

actuators. For this purpose, restrict access to

actuators and to keys for releases, for example.

Mounting, electrical connection and setup only

by authorized personnel possessing special

knowledge about handling safety components.

CAUTION

Danger due to high housing temperature at ambi-

ent temperatures above 40 °C.

Protect switch against touching by personnel or

contact with inflammable material.

Function

The safety switch permits the locking of movable

safety guards.
In the switch head there is a rotating cam that is

blocked/released by the guard locking pin.
The guard locking pin is moved on the insertion/

removal of the actuator and on the activation/

release of the guard locking. During this process

the switching contacts are actuated.
If the cam is blocked (guard locking active), the actua-

tor cannot be pulled out of the switch head. For design

reasons, guard locking can be activated only when the

safety guard is closed (failsafe locking mechanism).
The safety switch is designed so that fault ex-

clusions for internal faults in accordance with

EN ISO 13849-2:2013, Table A4, can be assumed.

Guard lock monitoring

All versions feature at least one safe contact for

monitoring guard locking. The contacts are

opened when guard locking is released.

Door monitoring contact

Versions STA3 and STA4 additionally feature at least

one door monitoring contact. Depending on the

switching element, the door monitoring contacts

can be either positively driven (contacts ) or not

positively driven.
The door monitoring contacts are actuated when

the safety guard is opened.

Versions STA1 and STA3

(Guard locking actuated by spring force and released

by energy ON)

Activating guard locking: close safety guard; no

voltage at the solenoid

Releasing guard locking: apply voltage to the

solenoid

The spring-operated guard locking functions in

accordance with the closed-circuit current princi-

ple. If voltage is interrupted at the solenoid, guard

locking remains active and the safety guard cannot

be opened directly.
If the safety guard is open when the power supply

is interrupted and the guard is then closed, guard

locking is activated. This can lead to persons being

locked in unintentionally.

Versions STA2 and STA4

(Guard locking actuated by energy ON and released

by spring force)

Important!

Use as guard locking for personnel protec-

tion is possible only in special cases, after

strict assessment of the accident risk (see

EN ISO 14119:2013, Section 5.7.1)!

Activating guard locking: apply voltage to the

solenoid

Releasing guard locking: disconnect voltage from

the solenoid

The magnetically actuated guard locking operates

in accordance with the open-circuit current princi-

ple. If voltage is interrupted at the solenoid, guard

locking is released and the safety guard can be

opened directly.

Switching states

The detailed switching states for your switch can be

found in Figure 3. All available switching elements

are described there.

Safety guard open

STA1 and STA2:

The safety contacts are open.
STA3 and STA4:

The safety contacts and are open.

Safety guard closed and not locked

STA1 and STA2:

The safety contacts are open.
STA3 and STA4:

The safety contacts are closed. The safety

contacts are open.

Safety guard closed and locked

STA1 and STA2:

The safety contacts are closed.
STA3 and STA4:

The safety contacts and are closed.

Selection of the actuator

NOTICE

Damage to the device due to unsuitable actuator.

Make sure to select the correct actuator (see

table in Figure 2).
Additionally pay attention to the door radius and

the fastening options (see Figure 4).

The following versions are available:

Actuator S for safety switches without insertion

funnel.

Actuator L for safety switches with insertion funnel.

Manual release

Some situations require guard locking to be released

manually (e.g. malfunctions or an emergency). A

function test should be performed after release.
More information on this topic can be found in the

standard EN ISO 14119:2013, Section 5.7.5.1. The

device can feature the following release functions:

Mechanical release

In the event of malfunctions, the guard locking can

be released with the mechanical release irrespective

of the state of the solenoid.
The contacts are opened when the mechanical

release is actuated. A stop command must be

generated with these contacts.

Actuating mechanical release

1. Unscrew locking screw.
2. Using a screwdriver, turn the mechanical re-

lease to in the direction of the arrow.

Guard locking is released.

Important!

The actuator must not be under tensile stress

during manual release.

After use, reset the mechanical release and screw

in and seal the locking screw (for example with

sealing lacquer).

Escape release

Permits opening of a locked safety guard from the

danger area without tools.

Important!

It must be possible to operate the escape re-

lease manually from inside the protected area

without tools.

It must not be possible to reach the escape

release from the outside.

The actuator must not be under tensile stress

during manual release.

The escape release meets the requirements of

Category B according to EN ISO 13849-1:2008.

Содержание STA Series

Страница 1: ...e betätigt Bei blockierter Schaltwalze Zuhaltung aktiv kann der Betätiger nicht aus dem Schalterkopf gezogen werden Konstruktionsbedingt kann die Zuhaltung nur aktiviert werden wenn die Schutzeinrichtung geschlossen ist Fehlschließsicherung Die Konstruktion des Sicherheitsschalters ist so ausgeführt dass Fehlerausschlüsse auf interne Fehler gemäß EN ISO 13849 2 2013 Tabelle A4 angenommen werden kö...

Страница 2: ...ten Sie die geltenden Vorschriften zur Unfallverhütung Überprüfen Sie nach der Installation und nach jedem Fehler die korrekte Funktion des Geräts Gehen Sie dabei folgendermaßen vor Mechanische Funktionsprüfung Der Betätiger muss sich leicht in den Betätigungskopf einführen lassen Zur Prüfung Schutzeinrichtung mehr mals schließen Vorhandene manuelle Entriegelungen außer Hilfsentriegelung müssen eb...

Страница 3: ...triebsspannung für optionale LED Anzeige L024 24 V Bemessungsisolationsspannung STA STA SR11 STA RC18 Ui 250 V Ui 50 V Bemessungsstoßspannungsfestigkeit STA STA SR11 STA RC18 Uimp 2 5 kV Uimp 1 5 kV Bedingter Kurzschlussstrom 100 A Schaltspannung min bei 10 mA 12 V Gebrauchskategorie nach IEC 60947 5 1 STA AC 15 4 A 230 V DC 13 4 A 24 V STA SR11 STA RC18 AC 15 4 A 50 V DC 13 4 A 24 V Schaltstrom m...

Страница 4: ... 46 5 16 3 M20x1 5 3x Sicherungs schraube Hilfsentriegelung für M5 35 mm ISO 1207 DIN84 ISO 4762 DIN 912 M 1 5 Nm M 1 5 Nm grün rot Nur bei Schaltern mit Kabeleinführung LED Modul separat beigelegt Montageanleitung beachten Betätigungskopf mit Einführtrichter 4 19 19 h v 0 5 35 5 45 5 30 194 4 9 16 4 M 1 5 Nm 0 5 4 30 ca 28 Mit Steckverbinder SR11 ca 22 Mit Steckverbinder RC18 Mit Fluchtentriegelu...

Страница 5: ...etaetiger S W 300 Radiusbetätiger S OU 200 Radiusbetätiger S LR 200 28 5 5 16 4 30 35 50 R 200 20 26 12 24 5 5 35 50 R 200 20 R 200 35 24 5 5 R 200 4 39 29 5 5 12 PE E2 E1 E1 E2 E1 E2 Kontaktbelegung Steckverbinder SR11 RC18 Ordnungsziffer der Schaltglieder Schutzeinrichtung geöffnet Schutzeinrichtung geschlossen und nicht zugehalten Schutzeinrichtung geschlossen und zugehalten Type STA1 4131 STA2...

Страница 6: ... guard is closed failsafe locking mechanism The safety switch is designed so that fault ex clusions for internal faults in accordance with EN ISO 13849 2 2013 Table A4 can be assumed Guard lock monitoring All versions feature at least one safe contact for monitoring guard locking The contacts are opened when guard locking is released Door monitoring contact Versions STA3 and STA4 additionally feat...

Страница 7: ...veral times to check the function The function of any manual releases except for the mechanical release must also be tested Electrical function test 1 Switch on operating voltage 2 Close all safety guards and activate guard locking The machine must not start automatically It must not be possible to open the safety guard 3 Start the machine function It must not be possible to release guard locking ...

Страница 8: ...impulse withstand voltage STA STA SR11 STA RC18 Uimp 2 5 kV Uimp 1 5 kV Conditional short circuit current 100 A Switching voltage min at 10 mA 12 V Utilization category acc to IEC 60947 5 1 STA AC 15 4 A 230 V DC 13 4 A 24 V STA SR11 STA RC18 AC 15 4 A 50 V DC 13 4 A 24 V Switching current min at 24 V 1 mA Short circuit protection control circuit fuse acc to IEC 60269 1 4 A gG Conv thermal current...

Страница 9: ...5 190 22 4 30 46 5 16 3 M20x1 5 3x Locking screw Mechanical release for M5 35 mm ISO 1207 DIN84 ISO 4762 DIN 912 M 1 5 Nm M 1 5 Nm Green Red Only for switches with cable entry LED module enclosed separately Observe assembly instructions Actuating head with insertion funnel 4 19 19 h v 0 5 35 5 45 5 30 194 4 9 16 4 M 1 5 Nm 0 5 4 30 ca 28 With plug connector SR11 ca 22 With plug connector RC18 With...

Страница 10: ...S LR SN Actuator Door radius min mm Actuator S G 300 Actuator S W 300 Hinged actuator S OU 200 Hinged actuator S LR 200 28 5 5 16 4 30 35 50 R 200 20 26 12 24 5 5 35 50 R 200 20 R 200 35 24 5 5 R 200 4 39 29 5 5 12 PE E2 E1 E1 E2 E1 E2 Terminal assignment Plug connector SR11 RC18 Ordinal numbers of switching contacts Safety guard open Safety guard closed and not locked Safety guard closed and lock...

Страница 11: ...tion déblocage du dispositif d interverrouillage provoque le déplacement du doigt Ceci a pour effet d action ner les contacts de commutation Lorsque le disque est bloqué interverrouillage actif il est impossible de retirer la languette de la tête de l interrupteur Par conception l interverrouillage ne peut être activé que si le protecteur est fermé sécurité contre les erreurs de fermeture L interr...

Страница 12: ...nchéité du connecteur Pour les appareils avec entrée de câble 1 Percer l ouverture du presse étoupe souhaitée à l aide d un outil approprié 2 Monter le presse étoupe avec le type de pro tection adapté 3 Effectuer le raccordement et serrer les bornes au couple de 0 5 Nm affectation des contacts voir Figure 3 4 Veiller à l étanchéité à l entrée du câble 5 Fermer le couvercle de l interrupteur et le ...

Страница 13: ...ontact à action dépendante Matériau des contacts Alliage argent doré par soufflage Type de raccordement STA STA SR11 STA RC18 Entrée de câble M20x1 5 Connecteur SR11 11 broches PE Connecteur RC18 18 broches PE Section de conducteur rigide flexible 0 34 1 5 mm2 Tension de service pour indication par LED en option L024 24 V Tension assignée d isolement STA STA SR11 STA RC18 Ui 250 V Ui 50 V Tension ...

Страница 14: ... 3 M20x1 5 3x Vis de protection Déverrouillage de secours pour M5 35 mm ISO 1207 DIN84 ISO 4762 DIN 912 M 1 5 Nm M 1 5 Nm Verte Rouge Uniquement pour les interrupteurs avec entrée de câble Module LED séparé fourni Tenir compte des instructions de montage Tête d actionnement avec module d insertion 4 19 19 h v 0 5 35 5 45 5 30 194 4 9 16 4 M 1 5 Nm 0 5 4 30 ca 28 Avec connecteur SR11 ca 22 Avec con...

Страница 15: ...ent d actionnement Rayon porte min mm Languette S G 300 Languette S W 300 Languette art S OU 200 Languette art S LR 200 28 5 5 16 4 30 35 50 R 200 20 26 12 24 5 5 35 50 R 200 20 R 200 35 24 5 5 R 200 4 39 29 5 5 12 PE E2 E1 E1 E2 E1 E2 Affectation des contacts Connecteur SR11 RC18 Numéro ordinal des contacts Protecteur ouvert Protecteur fermé et non verrouillé Protecteur fermé et verrouillé Type S...

Страница 16: ...o di ritenuta viene spo stato il perno di chiusura Con questa operazione vengono azionati i contatti di commutazione Con la camma bloccata meccanismo di ritenuta attivo l azionatore non può essere estratto dalla testina di azionamento Per motivi costruttivi il meccanismo di ritenuta può essere attivato solo se il riparo di protezione è chiuso protezione da chiusura involontaria La costruzione del ...

Страница 17: ...n utensile idoneo 2 Montare il collegamento a pressacavo con il relativo grado di protezione 3 Collegare e serrare i morsetti con una coppia di 0 5 Nm connessione vedi Figura 3 4 Accertarsi che il pressacavo sia a tenuta 5 Chiudere il coperchio del finecorsa e avvitarlo coppia di serraggio 1 5 Nm Verifica delle funzioni AVVERTENZA Lesioni mortali in caso di errori durante la prova funzionale f f P...

Страница 18: ...Materiale dei contatti lega di argento placcata oro Tipo di collegamento STA STA SR11 STA RC18 pressacavo M20x1 5 connettore SR11 11 poli PE connettore RC18 18 poli PE Sezione del conduttore rigido flessibile 0 34 1 5 mm2 Tensione di esercizio per indicatore LED opzionale L024 24 V Tensione di isolamento nominale STA STA SR11 STA RC18 Ui 250 V Ui 50 V Rigidità dielettrica nominale STA STA SR11 STA...

Страница 19: ... 41 5 35 5 190 22 4 30 46 5 16 3 M20x1 5 3x Vite di sicurezza Sblocco ausiliario per M5 35 mm ISO 1207 DIN84 ISO 4762 DIN 912 M 1 5 Nm M 1 5 Nm verde rosso Solo nei finecorsa con pressacavo modulo LED fornito a parte Osservare le istruzioni di installazione Testina di azionamento con imbuto 4 19 19 h v 0 5 35 5 45 5 30 194 4 9 16 4 M 1 5 Nm 0 5 4 30 ca 28 Con connettore SR11 ca 22 Con connettore R...

Страница 20: ...e Raggio riparo min mm Azionatore S G 300 Azionatore S W 300 Azionatore rotativo S OU 200 Azionatore rotativo S LR 200 28 5 5 16 4 30 35 50 R 200 20 26 12 24 5 5 35 50 R 200 20 R 200 35 24 5 5 R 200 4 39 29 5 5 12 PE E2 E1 E1 E2 E1 E2 Connessioni Connettori SR11 RC18 Cifre in successione relative ai contatti Riparo di protezione aperto Riparo di protezione chiuso e non bloccato Riparo di protezion...

Страница 21: ...disco de con mutación giratorio que es bloqueado liberado por el perno de bloqueo Al introducir o extraer el actuador y al activar o des activar el bloqueo el perno de bloqueo se mueve Durante este proceso se accionan los contactos de conmutación Cuando el disco de conmutación está bloqueado bloqueo activo el actuador no puede sacarse de la cabeza del interruptor Debido a su diseño el bloqueo solo...

Страница 22: ... cable 1 Abra la inserción de cable deseada con una herramienta apropiada 2 Monte un prensaestopas de cable con un grado de protección adecuado 3 Apriete las conexiones y bornes 0 5 Nm para la asignación de contactos consulte la Figura 3 4 Compruebe la estanqueidad de la entrada de cable 5 Cierre la tapa y atorníllela par de apriete 1 5 Nm Comprobación de funcionamiento ADVERTENCIA Lesiones mortal...

Страница 23: ...e activación Contacto de conmutación de acción lenta Material del contacto Aleación de plata dorada Tipo de conexión STA STA SR11 STA RC18 Inserción de cable M 20 x 1 5 Conector SR11 11 polos PE Conector RC18 18 polos PE Sección del conductor rígido flexible 0 34 1 5 mm2 Tensión de servicio para Indicador LED opcional L024 24 V Tensión de aislamiento de referencia STA STA SR11 STA RC18 Ui 250 V Ui...

Страница 24: ...30 46 5 16 3 M20x1 5 3x Tornillo de seguridad Desbloqueo auxiliar Para M5 35 mm ISO 1207 DIN84 ISO 4762 DIN 912 M 1 5 Nm M 1 5 Nm Verde Rojo Solo para interruptores con entrada de cable módulo LED incluido por separado Tenga en cuenta las instrucciones de montaje Cabezal actuador con embudo de entrada 4 19 19 h v 0 5 35 5 45 5 30 194 4 9 16 4 M 1 5 Nm 0 5 4 30 ca 28 Con conector SR11 ca 22 Con con...

Страница 25: ...adial S LR SN Actuador Radio de puerta mín mm Actuador S G 300 Actuador S W 300 Actuador radial S OU 200 Actuador radial S LR 200 28 5 5 16 4 30 35 50 R 200 20 26 12 24 5 5 35 50 R 200 20 R 200 35 24 5 5 R 200 4 39 29 5 5 12 PE E2 E1 E1 E2 E1 E2 Asignación de contactos Conector SR11 RC18 Número de ordenación de los contactos de conmutación Resguardo de seguridad abierto Resguardo de seguridad cerr...

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