Smart Process Gating
Leuze electronic GmbH + Co. KG
MLC 530 SPG
26
The gating sequence is initiated by the antivalent signal change between CS and TH within 0.5 s.
If it is not possible for the protective field to be interrupted within 4 s after initiation of the gating sequence,
the possibility exists to perform a qualified stop.
The function of the stop of the gating sequence as well as of the gating restart is initiated by the renewed
edge change of the CS and TH signals.
TH
CS
PFI
GA
a
t1
CS
Switching signal from the control
TH
Timer hold signal from the control
PFI
Protective field interrupted
GA
active
Gating active
a
Antivalent signal change between CS and TH
t1
< 4 s
Fig. 4.3:
Operating mode 1 - Qualified stop
4.4.2
Operating mode 4 - standard with short tolerance times
The following functions are active in this operating mode (see chapter 8.3 "Operating mode 4"):
• MaxiScan
• Start/restart interlock active (see chapter 5.1 "Start/restart interlock RES")
The following functions can be selected as well:
• Gating timeout extension to up to 100 hours (see chapter 4.5.2 "Gating timeout extension")
• Fixed blanking can be taught with position tolerance of ± 1 beam (see chapter 5.5 "Blanking")
NOTICE
In operating mode 4, non-safe controls can also be used. Performance Level PL d is thereby
achieved.
The operating mode 4 is intended primarily for conveyor speeds > 0.4 m/s, such as they are used in, e.g.,
the intralogistics sector.
