show the entry list
Safety Integrated - Functional Safety in machines and plants
Combination of a Power Contactor and a Circuit-Breaker (with undervoltage release) in safety function can be evaluated according to IEC 62061 and ISO 13849-1
Evaluation of a safety function by using SIMATIC S7 "standard output cards" switched off by the load voltage
How can I find the standard B10 values and ratio of dangerous failures (RDF) of electrical and mechanical components?
3TF5 Contactors: B10 values and ratio of dangerous failures (RDF)?
Define of Diagnostic Coverage and maximum achievable Systematic Safety Integrity for subsystem resp. SRP/CS with electromechanical components
SIRIUS 3SE5: Functional Safety - One Position Switch
Calculation of “non-electrotechnical components” permissible on the basis of IEC 62061
SIRIUS 3RA6 Reversing Starter with AS-i Mounting Module: Local Safety Shutdown at SIL 1 due to IEC 62061 / PL c due to EN ISO 13849-1:2006
SIRIUS 3RA6 with AS-i Mounting Module: Local Safety Shutdown at SIL 1 due to IEC 62061 / PL c due to EN ISO 13849-1:2006
How to understand the PFHD values in the informative annex K, table K.1 of the standard ISO 13849-1
Performance Level PL d with Category 3 (ISO 13849-1) or SIL 2 (IEC 62061) using only 1 SIRIUS Position switch with or without solenoid interlocking or only 1 SIRIUS Hinge switch is achievable
Programmable electronic control components (e.g. standard PLC or standard AS-i) and application of ISO 13849-1
Disconnecting series connected EMERGENCY-STOP commanding devices represents individual supplementary safety function by EN 62061
SILCL 1 is attainable with a subsystem consisting of an electromechanical component and a 1-channel architecture.
Attainable SIL acc. to IEC 61511 of subsystems or subsystem elements consisting of SIRIUS components with low demand mode acc. to IEC 61508
3WL - B10/B10d values and part of dangerous failures
Stopping in an emergency
3SB3 Pushbuttons and Indicator Lights: Statement regarding B10 value and RDF for a contact element
SIRIUS Safety Integrated: Emergency stop shutdown via AS-i to SIL 3 or PL e with a Modular Safety System
SIRIUS Safety Integrated: Emergency stop shutdown to SIL 3 or PL e with a Modular Safety System
SIRIUS Safety Integrated: Emergency stop shutdown to SIL 3 or PL e with a safety relay
SIRIUS Safety Integrated: Emergency stop shutdown to SIL 1 or PL c with a Modular Safety System
SIRIUS Safety Integrated: Emergency stop shutdown to SIL 1 or PL c with a safety relay
3SB Pushbuttons and Indicator Lights: Are Protective collars for EMERGENCY-STOP approved?
Disconnecting series connected EMERGENCY-STOP commanding devices represents individual supplementary safety function by EN 62061
Disconnecting series connected EMERGENCY-STOP commanding devices represents individual supplementary safety function by EN 62061
Part number:

QUESTION:

If several EMERGENCY-STOP commanding devices are electrically connected in series, does every safety-related disconnection via an EMERGENCY-STOP commanding device represent an individual supplementary safety function ?


ANSWER:

IEC 62061 – Application Explanations:

If several EMERGENCY-STOP commanding devices are electrically connected in series, every safety-related disconnection via an EMERGENCY-STOP commanding device represents an individual supplementary safety function.

 

The explanations in attached document are to address these issues.

Anymore questions?
Please consult Siemens Low Voltage Switchgear - Technical Assistance via mail adress or phone number, as shown in the header of the attached document.


IEC62061_Info_3_en.pdf ( 35 KB )


 Entry ID:35444028   Date:2009-04-21 
I regard this article....as helpfulas not helpful                                 
mySupport
My Documentation Manager 
Newsletter 
CAx-Download-Manager 
Support Request
To this entry
Print
Create PDF 
Send to a friend
QuickLinks
Compatibility tool 
Topics
Help
Online Help
Guided Tour