Smart Process Gating
Leuze electronic GmbH + Co. KG
MLC 530 SPG
23
4.3
SPG checklist for programmers
Tab. 4.2:
Checklist for SPG integration
General information
Criterion for SPG operation
Criterion satisfied
Remark
Access guarding with material passage
Position of the transport material is
known to the control
Position of the transport material is
known to the control with additional
measure
Additional measures may be, e.g.,
trigger, sensor, etc.
Position information comes from a
source that cannot easily be tampered
with
Signal generation
Criterion for SPG operation
Criterion satisfied
Remark
The CS switching signal is not gener-
ated directly by a person
If a sensor is used to derive the CS
signal, this sensor signal may only be
used indirectly,
e.g., through time extension in the
control
Protective field violation < 4 s after
switching signal
Switching signal is not generated until
the object is less than 200 mm away
from the protective field
The CS switching signal is no longer
applied 200 mm after the protective
field has been cleared
If necessary, the controlled gating end
must be used (see chapter 4.5.1
"Controlled gating end")
NOTICE
There is an increased risk of tampering during entry into the danger zone.
Ä
To reduce the risk of tampering, evaluate additional information, e.g., a belt movement sig-
nal.
