Applications
Leuze electronic GmbH + Co. KG
MLC 530 SPG
45
Criterion for SPG operation
Criterion satis-
fied
Remark
The CS switching signal is only
generated if the transport material
is less than 200 mm away from
the protective field.
Yes
With a conveyor speed of 0.1 m/s, the CS switch-
ing signal may not be applied sooner than 2 s
prior to interruption of the protective field.
The CS switching signal is no
longer applied 200 mm after the
protective field has been cleared.
Yes
With a conveyor speed of 0.1 m/s, the distance of
200 mm is traveled in 2 s (0.1 m/
s x 2 s = 200 mm).
The condition for automatic gating end is thereby
satisfied.
The prerequisites for SPG operation are met.
Application information
Criterion
Limit value for
SPG operation
Remark
Interruption of the synchronization
beams
> 60 s
Because the synchronization beams can be inter-
rupted for more than 60 s, the protective field
length must be selected in accordance with ISO
13855 and be greater than the maximum height
of the transport material.
Interruption of the transport flow
necessary
Yes
Select operating mode 1 (see chapter 4.4.1 "Op-
erating mode 1 - Qualified stop").
Distance from the transport mate-
rial to the protective device
< 200 mm
No additional measure necessary since it is not
possible to squeeze through between transport
material and protective device.
> 200 mm
Additional measure necessary, e.g., fencing or
wicket gates. The evaluation of the wicket gates
can be performed with operating mode 6 if neces-
sary (see chapter 4.4.4 "Operating mode 6 - Par-
tial gating").
Protective-field filter time
2 s (operating
mode 1, operating
mode 6)
1 s (operating
mode 5)
0.5 s (operating
mode 4)
A brief clearing of the protective field is possible
without interruption of the gating event. Small
gaps in the transport material can thereby be tol-
erated (see chapter 4.1 "Overview and princi-
ple").
For a conveyor speed of 0.1 m/s, gaps of up to
200 mm are tolerated in operating mode 1
(2 s x 0.1 m/s = 200 mm).
Gating > 10 minutes
10 minutes
Use timeout extension.
Timeout extension of up to 100 hours is possible
(see chapter 4.5.2 "Gating timeout extension").
Transmitter and receiver must remain in sync
during the timeout: the protective field length
must be greater than the transport material.
Process sequence
Operating mode 1 with a safety control (see chapter 4.4.1 "Operating mode 1 - Qualified stop").