Sf_Testablesafetysensor - ABB AC500-S Handbuch

AC500-S Sicherheitshandbuch, V1.0.1
4.6.6.11

SF_TestableSafetySensor

Normen Anforderungen
IEC 61496-1: 4.2.2.3 Particular requirements for a type 2 ESPE
2004
A type 2 ESPE shall have means of periodic test to reveal a failure to danger (for
example, loss of detection capability, response time exceeding that specified).
A single fault resulting in the loss of detection capability or the increase in re-
sponse time beyond the specified time or preventing one or more of the OSSDs
going to the OFF-state, shall result in a lock-out condition as a result of the next
periodic test.
Where the periodic test is intended to be initiated by an external (for example ma-
chine) safety-related control system, the ESPE shall be provided with suitable
input facilities (for example terminals).
The duration of the periodic test shall be such that the intended safety function is
not impaired.
NOTE If the type 2 ESPE is intended for use as a trip device (for example when
used as a perimeter guard), and the duration of the periodic test is greater than
150 ms, it is possible for a person to pass through the detection zone without be-
ing detected. In this case, a restart interlock should be included.
If the periodic test is automatically initiated, the correct functioning of the periodic
test shall be monitored and a single fault in the parts implementing the monitoring
function shall be detected. In the event of a fault, the OSSD(s) shall be signalled
to go to the OFF-state.
If one or more OSSDs do not go to the OFF-state, a lock-out condition shall be
initiated.
EN 954-1:1996 5.4 Manual reset
ISO 12100-2: 4.11.4: Restart following power failure/spontaneous restart
2003
Name des Funktionsbau-
steins
Dieser Funktionsbaustein erkennt zum Beispiel, ob eine Erkennung durch die Abtasteinrichtung nicht
länger möglich ist, eine Überschreitung der festgelegten Antwortzeit und ein statisches EIN-Signal im
Einzelkanal-Sensorsystem. Er kann für externe überprüfbare Sicherheitssensoren (BWS: berührungs-
los wirkende Schutzeinrichtung, z. B. Lichtschranke) verwendet werden.
VAR_INPUT
Name
Activate
Jegliche Vervielfältigung, Verwendung oder Weitergabe an Dritte ist ohne ausdrückliche Genehmigung streng verboten.
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SF_TestableSafetySensor
Datentyp Anfangswert Beschreibung, Parameterwerte
BOOL FALSE Siehe Abschnitt 4.6.6.1 Allgemeine Eingangspa-
rameter
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