Applications
Leuze electronic GmbH + Co. KG
MLC 530 SPG
48
Prerequisites and criteria for permissible SPG operation
Criterion for SPG operation
Criterion satis-
fied
Remark
Access guarding with material
passage.
Yes
Position of the transport material
is known to the control.
Yes
The control obtains additional information through
the evaluation of sensor signals and belt-move-
ment signal.
Position information comes from a
source that cannot easily be tam-
pered with
Yes
The CS switching signal is not
generated directly by a person.
Yes
The CS switching signal is gener-
ated indirectly by a sensor.
Yes
Protective field violation in less
than 4 s after the CS switching
signal.
Yes
At a conveyor speed of 0.3 m/s, the protective
field is interrupted 0.66 s after applying the
switching signal (0.2 m : 0.3 m/s = 0.66 s).
The CS switching signal is only
generated if the transport material
is less than 200 mm away from
the protective field.
Yes
Sensors PS1 and PS2 are less than 200 mm in
front of the protective device.
The CS switching signal is no
longer applied 200 mm after the
protective field has been cleared.
No
With a conveyor speed of 0.3 m/s, the distance is
0.3 m/s x 1 s = 300 mm.
Automatic gating end is not possible. Gating must
be interrupted by the control (see chapter 4.5.1
"Controlled gating end").
The prerequisites for SPG operation are met.
