Reer JANUS - SERIES ML S2 - KIT PREASSEMBLED of JANUS LIGHT CURTAIN and SENSORS ELEMENTS ML S Integrated Muting Sensors - for One-Way Openings with Pallet Exit; MODEL MI - External Sensors 3 Selectable Methods of Muting

8540573 • 16/09/2016 • Rev.20 7
SERIES "ML S2" - KIT PREASSEMBLED OF JANUS LIGHT CURTAIN AND SENSORS ELEMENTS “ML S”
Integrated Muting sensors – for one-way openings with pallet exit.
In this model, the sensors 1 and 2 are on the same side of the
vertical light curtain and are placed in front of the guarded opening
(Figure 5).
This model is one-way and is useful for protecting pallet exit
openings.
The Muting function is activated following concurrent interruption
(within max. 4 sec) of sensors S1 and S2. The Muting function
remains active as long as both sensors remain occupied.
When the first of the 2 sensors is cleared, the material has four
seconds to abandon the guarded area delimited by the light curtain.
The Muting condition will be disabled as soon as the protected area
is cleared.
After 4 seconds, if the light curtain is still occupied, the OSSD
outputs are disabled, interrupting functioning of the machine. For
this model, the maximum duration of the Muting condition (timeout)
can be set to 30 seconds or 90 minutes.

To guarantee the safety operation of the ML S2
series, the horizontal muting sensor must be
mounted INSIDE the dangerous area (dashed in
Figure 5).
 When using a ML series JANUS, the minimum distance
between two consecutive pallet must be 40cm.
Figure 5
MODEL "MI" – external sensors
3 selectable methods of Muting.
The "MI" model can use 2 or 4 sensors that must be connected to
the M12 connectors on the front part of the vertical light curtain.
These sensors may be of various types (proximity, optical,
capacitive with PNP or electromechanical type output and with
DARK-ON switching (i.e. output active when material is present).
If 4 sensors are connected, it is possible to choose two methods of
operation: 1) Concurrent; 2) Sequential.
CONNECTION WITH 2 EXTERNAL SENSORS (Figure 6)
This model is two-way and is useful for protecting pallet
entrance/exit openings.

The point of intersection of the two sensors must be
located inside the dangerous area to prevent accidental
and dangerous activation of the Muting function.
The Muting function is activated following concurrent interruption
(within max. 4s) of sensors S1 and S2. The Muting function
continues as long as both sensors are occupied. When the first of
the two sensors is cleared, the Muting function is disabled.
Also for this model, the maximum duration of the Muting condition
(timeout) can be set to 30 seconds or 90 minutes.
Figure 6
Receiver
Emitter
Sensor 2
Sensor 1
D
D
A
A
N
N
G
G
E
E
R
R
O
O
U
U
S
S
A
A
R
R
E
E
A
A
Emitter
Receiver
Sensor 1
Sensor 2
D
D
A
A
N
N
G
G
E
E
R
R
O
O
U
U
S
S
A
A
R
R
E
E
A
A