Siemens ISI EN 50295 - Manual (Page 15)

Siemens IK PI · 2004 6/15
AS-Interface
AS-Interface Safety at work
AS-Interface position switches
6
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Overview
Position switch from left to right:
Standard / Standard, with M12 connector / with tumbler
It is also possible now to directly connect SIGUARD position
switches via the standard AS-Interface with safety-oriented com-
munication. In this case, the safety functions no longer have to
be conventionally wired up.
Position switches convert the mechanical positions of moving
machine components into electrical signals.
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Application
Position switch with separate actuator
The position switches with separate actuator are used in appli-
cations in which the position of doors, covers or guards has to
be monitored for safety reasons.
The position switch can only be switched using the associated
coded actuator. It is not possible to bypass it manually or using
a tool.
Position switch with tumbler
The position switches with tumblers are special safety devices
that prevent the inadvertent or intentional opening of protective
doors, guards or other covers when a dangerous state exists,
e.g. for coastdown movements of the switched-off machine.
The safety switch with tumbler has two main tasks:
• Enabling the machine when the protective device is closed
and locked
• Disabling the machine when the protective device is open
The position switch can only be switched using the associated
coded actuator. It is not possible to bypass it manually or using
a tool.
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Selection and Ordering data
Design Order No.
AS-Interface position switch, standard
Via AS-Interface F adaptor
With direct connection of AS-Interface to Safety at Work
For use up to Category 2 acc. to EN 954-1
IP65
3SF3 200-6EV00-0BA1
• Molded plastic enclosure , EN 50 047, 31 mm wide, slow-action contact, two NC
- Overtravel plunger 3SF3 200-6CV00-0BA1
- Roller plunger 3SF3 200-6DV00-0BA1
- Roller lever 3SF3 200-6EV00-0BA1
- Angular roller lever 3SF3 200-6FV00-0BA1
- Swivel lever 3SF3 200-6GV00-0BA1
• Molded plastic enclosure , EN 50 047, 31 mm wide, snap action contact, one NC
- Overtravel plunger 3SF3 200-1CV00-0BA1
- Roller plunger 3SF3 200-1DV00-0BA1
- Roller lever 3SF3 200-1EV00-0BA1
- Angular roller lever 3SF3 200-1FV00-0BA1
- Swivel lever 3SF3 200-1GV00-0BA1
Forced opening IEC 60 947-5-1, Appendix K.