Sf_Mutingpar - ABB AC500-S Handbuch

AC500-S Sicherheitshandbuch, V1.0.1
4.6.6.13

SF_MutingPar

Normen
IEC 61496-1: 2004
Jegliche Vervielfältigung, Verwendung oder Weitergabe an Dritte ist ohne ausdrückliche Genehmigung streng verboten.
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Anforderungen
A.7 Muting
A.7.1.2 There shall be at least two independent hard-wired muting signal
sources to initiate the function. It shall not be possible to initiate muting
when the OSSDs are already in the OFF-state.
A.7.1.3 The mute function shall only be inititated by the correct sequence
and/or timing of the mute signals. Should conflicting muting signals occur,
the ESPE shall not allow a muted condition to occur.
A.7.1.4 There shall be at least two independent hard-wired muting signal
sources to stop the function. The muting function shall stop when the first of
these muting signals changes state. The deactivation of the muting function
shall not rely only on the clearance of the ESPE.
A.7.1.5 The muting signals should be continuously present during muting.
When the signals are not continuously present, an incorrect sequence
and/or the expiration of a pre-set time limit shall cause either a lock-out
condition or a restart interlock.
A.7.4 Indication: A mute status signal or indicator shall be provided
(in some applications, an indication signal of muting is necessary
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