EUCHNER – More than safety.
EUCHNER – More than safety.

STP4A-4141A024SEM4AS1 (Order no. 097789)

Safety switch STP ASi, plug connector M12

  • AS-Interface
  • Plug connector(s) M12, 4-pin
  • Auxiliary release
  • Open-circuit current principle
STP4A-4141A024SEM4AS1 (Order no. 097789)

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

Operating current (power to lock): In the case of a safety guard with guard locking according to the open-circuit current principle, the safety guard is locked until the power supply to the guard locking solenoid is break-before-make. The guard is unlocked by spring force. This is also referred to as electrical guard locking.

Control of the guard locking solenoid

The guard locking solenoid is controlled via AS-Interface bit D0.

auxiliary voltage

The ASi auxiliary voltage is required to supply the guard locking solenoid.

AS-Interface inputs

D0, D1

Monitoring of the guard position

D2, D3

Monitoring the guard locking

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.

Dimension drawing
Dimension drawing
Connector assignment
Connector assignment
Electromechanical safety switches in use

Dimensional drawings

Dimensional drawings
1Auxiliary release
2Locking screw
3LED indicator

Connection examples

Connection examples
View of plug side

Technical data

Approvals

EAC_RU C-DE.MO05.B.00971/20CCC2024010305643586_SafetySwitch T_STc_UL_us_E155795_2/5Asi Interface_56204_

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
Guard locking solenoid D0 (1 = Solenoid energized)
LED red D1 (1 = LED on)
LED green D2 (1 = LED on)
AS-Interface auxiliary voltage 24 V -15 ... 10 %
Auxiliary current AS-Interface 300 mA
AS-Interface LED
red Fault
green Power
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
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 Reinforced thermoplastic
Contact Silver alloy, gold flashed
Locking force Fmax 2500 N
Locking force FZh 2000 N
Guard locking principle Open-circuit current principle

Characteristic values according to EN ISO 13849-1 and EN IEC 62061

B10DMission time
Monitoring of the guard position5x10620 y
Important! Values valid at DC-13 100 mA/24V
Monitoring of guard locking5x10620 y
Important! Values valid at DC-13 100 mA/24V


In combination with actuator ACTUATOR-S-GT-SN

Horizontal insertion depth 24.5 mm
Vertical insertion depth 24.5 mm
Horizontal overtravel 5 mm
Vertical overtravel 5 mm

Accessories

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
Download Complete Package (ZIP, 5,6 MB)

Single Documents

Other Documents

Ordering data

Ordernumber 097789
Item designation STP4A-4141A024SEM4AS1
Gross weight 0,539kg
Customs tariff number 85365019000
ECLASS 27-27-26-03 Safety switch with guard control

Technical support

Technical support
Do you have technical questions about our products, their possible use or applications? Our experts will be happy to help.

EUCHNER (UK) Ltd.
+44 114 2560123
sales(at)euchner.co.uk

EUCHNER USA Inc.
+1 315 701-0315
info(at)euchner-usa.com

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