STA ASi safety switch, plug connector(s) M12
- AS-Interface
- Plug connector(s) M12, 4-pin
- Auxiliary release
- Closed-circuit current principle
Description
Approach direction
Horizontal and vertical
Can be adjusted in 90° steps
Increased overtravel with horizontal approach direction
If increased play is required when the door is closed, an actuator with overtravel is available. This actuator allows the door to move slightly in the actuating direction when closed. This is important, for example, if safety doors have a rubber buffer as an end stop. An actuator with overtravel can reduce the permanent pressure of the compressed rubber buffer. This reduces the load on both the switch head and the door mechanism.
Guard locking principle
closed-circuit current (power to unlock): In a safety guard with guard locking according to the closed-circuit current principle, the guard is locked by spring force until the guard locking solenoid is supplied with current. The guard is unlocked by means of magnetic force. This is also referred to as mechanical guard locking.
Control of the guard locking solenoid
The guard locking solenoid is controlled via AS-Interface bit D0. In order to achieve safe control of the guard locking, the auxiliary voltage must also be switched safely.
auxiliary voltage
The ASi auxiliary voltage is required to supply the guard locking solenoid.
AS-Interface inputs
D0, D1 | Positively driven contact 1 |
D2, D3 | Positively driven contact 2 |
AS-Interface outputs
D0 | Activating the guard locking |
D1 | LED red |
D2 | LED green |
LED indicator
The Power LED indicates the operating voltage on the bus.
The Fault LED indicates when an error has been detected on the AS-Interface bus.
The green and red LEDs can be controlled by the control system via the bus as required using bits D1 and D2.
Auxiliary release
The auxiliary release on the front allows access to the machine in the event of a malfunction, e.g. a power failure. It is unlocked using a tool or a key. The auxiliary release must be secured against misuse (sealing, laking).
Required accessories
Actuator is not included in the scope of delivery.
Dimensional drawings
| 1 | Auxiliary release |
| 2 | Locking screw |
| 3 | LED indicator |
Connection examples
| View of plug side |
Technical data
Approvals
Electrical connection values
| ASI operating current | max. 45 mA |
| ASI data in | |
| according to AS-i Safety at Work | D0, D1, D2, D3 (see positively driven contact) |
| ASI data out | |
| LED green | D2 (1 = LED on) |
| Guard locking solenoid | D0 (1 = Solenoid energized) |
| LED red | D1 (1 = LED on) |
| AS-Interface auxiliary voltage | 24 V -15 ... 10 % |
| Auxiliary current AS-Interface | 300 mA |
| AS-Interface LED | |
| green | Power |
| red | Fault |
| AS-Interface protocol | ASi-3 |
| AS-Interface slave type | ID-Code: B, EA-Code: 7 |
| ASI voltage | 22.5 ... 30 ... 31.6 V |
| Solenoid duty cycle | 100 % |
Mechanical values and environment
| Approach speed | max. 20 m/min |
| Connection type | |
| 1 x | Plug connector M12 (4-pin) |
| Number of door position positively driven contacts | |
| according to AS-i Safety at Work | |
| Number of guard lock monitoring positively driven contacts | |
| according to AS-i Safety at Work | 1 D2,D3 (1 = locked) |
| Extraction force | 30 N |
| Actuation frequency | max. 1200 1/h |
| Actuating force | 35 N |
| Installation orientation | any |
| Insertion depth | 24.5 mm |
| Mechanical life | 1 x 10⁶ |
| Retention force | 20 N |
| Switching principle | Slow-action switching contact |
| Degree of protection | IP67 |
| Ambient temperature | -20 ... +55 °C |
| Material | |
| Housing | Alloy - die-cast |
| Contact | Silver alloy, gold flashed |
| Locking force Fmax | 3000 N |
| Locking force FZh | 2300 N |
| Guard locking principle | Closed-circuit current principle |
Characteristic values according to EN ISO 13849-1 and EN IEC 62061
| B10D | Mission time | |
|---|---|---|
| Monitoring of the guard position | 1.15x107 | 20 y |
| Important! Values valid at DC-13 100 mA/24V | ||
| Monitoring of guard locking | 1.15x107 | 20 y |
| Important! Values valid at DC-13 100 mA/24V | ||
In combination with actuator ACTUATOR-S-GT-SN
| Overtravel | 5 mm |
Accessories
AE-B-A1-02,0-096230
- Can be used as escape release or emergency release
- no automatic return
- Sheath length 2 m (rope length 6 m)
AE-B-A1-02,0-F-097747
- Can be used as escape release or emergency release
- automatic return
- Sheath length 2 m (rope length 6 m)
AE-B-A1-03,0-098313
- Can be used as escape release or emergency release
- no automatic return
- Sheath length 3 m (rope length 6 m)
AE-B-A1-04,0-098314
- Can be used as escape release or emergency release
- no automatic return
- Sheath length 4 m (rope length 6 m)
AE-B-A1-03,0-F-111233
- Can be used as escape release or emergency release
- automatic return
- Sheath length 3 m (rope length 6 m)
AE-B-A1-06,0-125582
- Can be used as escape release or emergency release
- no automatic return
- Rope length 6 m (without sheath)
AE-B-A1-06,0-F-124770
- Can be used as escape release or emergency release
- automatic return
- Rope length 6 m (without sheath)
Downloads
Complete package
Download all important documents with a single click.
Content:
- The operating instructions and any additions to the operating instructions or brief instructions
- Any data sheets to supplement the operating instructions
- The declaration of conformity
Single Documents
Déclaration UE de conformité
Declaración de conformidad UE
EU-Konformitätserklärung
Dichiarazione UE di conformità
Déclaration UE de conformité
Declaración de conformidad UE
EU-Konformitätserklärung
Dichiarazione UE di conformità
Mode d’emploi Interrupteur de sécurité STA…AS1
Manual de instrucciones Interruptor de seguridad STA…AS1
Betriebsanleitung Sicherheitsschalter STA…AS1
Other Documents
CAD data
Ordering data
| Ordernumber | 098993 |
| Item designation | STA3A-4141A024SEM4AS1 |
| Gross weight | 0,726kg |
| Customs tariff number | 85365019000 |
| ECLASS | 27-27-26-03 Safety switch with guard control |
