Datalogic SG2 BASE Series, Оригинальное руководство пользователя

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SG2 MUTING
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16 GLOSSARY
Detection zone : zone within which a specified test piece will be detected by the ESPE
Safety light curtain : it is an active optoelectronic protective device (AOPD) including an integrated system
consisting of one or several emitting elements and one or several receiving elements forming a detection area with
a detecting capacity specified by the supplier.
Detection capability (or Resolution) : the minimum dimension which an opaque object must have in order to
interrupt at least one beams of the ESPE whatever is position across the protected height.
Force-guided contacts : Relay contacts are force guided when they are mechanically connected so that they must
switch simultaneously on input change.
If one contact of the series remains “welded”, no other relay contact is able to move.
That relay characteristic allows the use of EDM function.
OSSD (Output signal switching device) : part of the ESPE connected to machine control system.
When the sensor is enabled during standard operating conditions, it switches to disabled status.
ESPE (Electro-sensitive protective equipment) : assembly of devices and/or components working together to
activate the protective disabling function or to detect the presence of something and including at least: a sensor,
command/control devices and output signal switching devices.
AOPD (Active optoelectronic protective device) : its detection function is achieved thanks to the use of
optoelectronic receivers and emitters detecting the optical beams interruptions inside the device caused by an
opaque object present inside the specified detecting area.
An active optoelectronic protective device (AOPD) can operate both in emitter-receiver mode and in retro-reflective
light curtains.
Protective device : device having the function to protect the operator against possible risks of injury due to the
contact with machine potentially-dangerous parts.
Min.installation distance : min. distance necessary to allow machine dangerous moving parts to completely stop
before the operator can reach the nearest dangerous point. This distance shall be measured from the middle point
of the detecting area to the nearest dangerous point. Factors affecting min. installation distance value are machine
stop time, total safety system response time and light curtain resolution.
EDM (External device monitoring) : device used by the ESPE to monitor the status of the external command
devices.
MPCE (Machine primary control element): electrically-powered element having the direct control of machine
regular operation so as to be the last element, in order of time, to operate when the machine has to be enabled or
blocked.
Emitter (TX) : unit emitting infrared beams, consisting of a set of optically-synchronised LEDs. The emitting unit,
combined with the receiving unit (installed in the opposite position), generates an optical “curtain”, i.e. the detecting
area.
Restart interlocking device (=RESTART) : device preventing machine automatic restart after sensor activation
during a dangerous phase of machine operating cycle, after a change of machine operating mode, and after a
variation in machine start control devices.
Start interlocking device (= START) : device preventing machine automatic start if the ESPE is live or the voltage
is disabled and enabled once again.