ABB AC500-S Handbuch Seite 321

AC500-S Sicherheitshandbuch, V1.0.1
Normen Anforderungen
CD IEC 5.5.1: .. an indicator to show when the muting function is active can be necessary.
62046/Ed. 1:
The muting function shall be initiated and terminated automatically....Incorrect signals, se-
2005
quence or timing of the muting sensors or signals shall not allow a mute condition. It shall not
be possible to initiate the muting function when:
– the protective equipment OSSDs are in the OFF-state;
– the protective equipment is in the lock-out condition.
- initiation of the muting function by two or more independent muting sensors such that a
single fault cannot cause a muted condition;
- termination of the muting function by two or more independent muting sensors such that
deactivation of one sensor will terminate the muting function;
- use of timing and sequence control of the muting sensors to ensure correct muting opera-
tion;
5.5.3: The following measures shall be considered:...
- limiting muting to a fixed time that is only sufficient for the material to pass through the
detection zone. When this time is exceeded, the muting function should be cancelled and all
hazardous movements stopped;
Annex F.7 Two sensors – Crossed beams (see also Fig. F.7.2 and F.7.3)
The muting function should only be initiated when the two beams are activated within a time
limit of 4 sec. The muting function should be terminated as soon as one of the two beams of
the muting sensors is no longer activated. A monitored timer that limits the muting function to
the minimum time practicable is required.
Annex F.5: Methods to avoid manipulation of the muting function: ... use a muting enable
command generated by the control system of the machine that will only enable the muting
function when needed by the machine cycle.
EN 954- 5.4 Manual reset
1:1996
ISO 12100-2: 4.11.4: Restart following power failure/spontaneous restart
2003
Jegliche Vervielfältigung, Verwendung oder Weitergabe an Dritte ist ohne ausdrückliche Genehmigung streng verboten.
© Copyright 2012-2013 ABB. Alle Rechte vorbehalten.
Seite 321/406