Fiessler ESPE Type 4, Руководство по эксплуатации

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electric guards.
Beam spacing
The distance (gap) between the centres of the individual lenses on ULVT... safety light barriers is called the beam distance. The
ULVT... safety light barriers are supplied with a lens grid of 7.5 mm.
Valve or contactor check
Prior to each release of the switching outputs, the contactor identifies whether the connected switching elements (relays,
contactors or valves) have fallen. Only when this is so can a new release of the switching inputs be performed. This also prevents
the dangerous failure of the switching elements (relays, contactors, valves) of the hazardous movement.
Restart interlock
The restart interlock prevents the automatic release of the switching outputs subsequent to the interruption and reactivation of the
protective field (e.g. due to walking through the protective field).
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FIESSLER
E L E K T R O N I K
8 Terminology
BA - ULVT