3TK2826 safety relay
Manual, 08/2007, GWA NEB 926 1579-02 DS 02
27
Configuration / project engineering
9
9.1
General remarks
SIRIUS safety relays and the safety chain
A safety chain generally consists of the Sense, Evaluate and Deactivate functions.
Sensing
This involves sensing a safety requirement, e.g. when an EMERGENCY STOP facility is
actuated or a hazardous area protected by sensors such as light arrays or laser scanners is
entered.
Evaluation
This involves detecting a safety requirement and safely initiating the reaction, e.g. the
undelayed deactivation of the SIRIUS safety relay's enabling circuits.
Deactivation
This involves the reaction in an emergency or under a risk, e.g. by deactivating hazarouds
drives via subsequently connected contactors.
Result
Within this safety chain, SIRIUS safety relays act in the areas of evaluation and deactivation.
Содержание Sirius 3TK2826
Страница 10: ...Product family 3 1 Order numbers 3TK2826 safety relay 10 Manual 08 2007 GWA NEB 926 1579 02 DS 02 ...
Страница 14: ...Functions 5 1 Functions 3TK2826 safety relay 14 Manual 08 2007 GWA NEB 926 1579 02 DS 02 ...
Страница 54: ...External circuitry 10 3 Output circuit 3TK2826 safety relay 54 Manual 08 2007 GWA NEB 926 1579 02 DS 02 ...
Страница 56: ...Commissioning 11 1 Commissioning 3TK2826 safety relay 56 Manual 08 2007 GWA NEB 926 1579 02 DS 02 ...
Страница 60: ...Technical data 12 2 Dimension drawings 3TK2826 safety relay 60 Manual 08 2007 GWA NEB 926 1579 02 DS 02 ...