Siemens EN 50295 Manuale Utente
Siemens IK PI · 2004
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AS-Interface
AS-Interface cable-operated switches
AS-Interface Safety at work
6
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Overview
It is also possible to connect AS-Interface cable-operated
switches via the standard AS-Interface with safety-oriented com-
munication.
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.
tionally wired up.
■
Application
SIGUARD cable-operated switches are used for monitoring or
for EMERGENCY-STOP facilities on particulary endangered sys-
tem sections.
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.
the length of the cord, large systems can also be protected.
Specifications
Switches with latching for implementation in EMERGENCY-STOP
equipment correspond to the EN 418 standard.
equipment correspond to the EN 418 standard.
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Function
The safety contacts of the AS-Interface cable-operated switch
are positively driven.
are positively driven.
The AS-Interface cable-operated switches are ready to operate
after pretensioning of the pull-wire or the rope.
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.
cable-operated switch can be returned to the original state.
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Selection and Ordering data
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
Catalog LV 10 Section AS-Interface Safety Systems
Design
Order No.
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
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
3SF2 120-1BF00-0BA1
• For cable lengths up to 25 m,
with adjustment window
3SF2 150-1BF00-0BA1
• For cable lengths up to 50 m
3SF2 140-1BF00-0BA1
Forced opening IEC 60 947-5-1, Appendix K.