NORSTAT Safety Relays - Handbuch (Seite 29)

application guide safety relays from riese electronic page 28
RS-NAGU...
The RS-NAGU.. is used for muting of safety light barriers and safety light curtains, so that material-
transport to or from a machine can be done. Applications can be found in the automotive industry,
packaging machines or at highly automated production systems. The differentiation between human and
material is done with up to four muting sensors or two safety light barriers. Inductive sensors or
mechanical switches can also be used as muting sensors.
Functions of the muting controllers:
ƒ Connection of an external muting lamp
ƒ Connection of present-sensing safeguarding
devices
ƒ Monitoring of external devices and expansion
modules
ƒ Connection of different muting-sensors
(NPN,PNP and relay output)
ƒ RS-NAGU.1 / RS-NAGU.1b / RS-NAGU.12:
3 electronic safety-semiconductor outputs.
ƒ RS-NAGU.2f: 3 normal open safety outputs.
Muting cycle
If the muting sensors 1 and 2 or 3 and 4 are activated within 3 sec, RS-NAGU.. starts a muting cycle. The
controlled muting light is turned on and an interruption of the light barrier will not cause a stop of the
machine. If three of the four muting sensors are deactivated, the muting cycle will end after 0,25 sec.
i
Muting
t < 3s
ML
a
i
a
i
1
1
i
MS4
a
MS3
a
MS2
i
a
MS1
i
a
i : inactive
a : active
: signal must overlap,
e.s. both muting sensors
need to be active in parallel.
t < 3s
1
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