Siemens EN 50295 Benutzerhandbuch

Siemens IK PI · 2004

AS-Interface Safety at work

6

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It is also possible to connect AS-Interface cable-operated 
switches via the standard AS-Interface with safety-oriented com-
munication.

In this case, the safety functions no longer have to be conven-
tionally wired up.

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SIGUARD cable-operated switches are used for monitoring or 
for EMERGENCY-STOP facilities on particulary endangered sys-
tem sections.

As the effective range of a cable-operated switch is limited by 
the length of the cord, large systems can also be protected.

Switches with latching for implementation in EMERGENCY-STOP 
equipment correspond to the EN 418 standard.

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The safety contacts of the AS-Interface cable-operated switch 
are positively driven.

The AS-Interface cable-operated switches are ready to operate 
after pretensioning of the pull-wire or the rope.

When the rope is pretensioned, it must be released before the 
cable-operated switch can be returned to the original state. 

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1) Accessories, technical specifications, contact travel, circuit diagrams 

and dimensional drawings are given for the specified basic switch in 
Catalog LV 10 Section AS-Interface Safety Systems

AS-Interface cable-operated switch 
With direct connection of AS-Interface to Safety at Work
Metal housing with dust protection
Implementable up to Category 4 to EN 954-1
IP65
Latching to EN 418
Pushbutton release
2 NC contacts

 

• For cable lengths up to 10 m, 

with adjustment window

 

• For cable lengths up to 25 m, 

with adjustment window

 

• For cable lengths up to 50 m

 Forced opening IEC 60 947-5-1, Appendix K.