Reer JANUS - MT Series Muting Operation

6 8540573 • 16/09/2016 • Rev.20
SERIES "MT" - KIT PREASSEMBLED OF JANUS LIGHT CURTAIN
AND SENSORS ELEMENTS “MT SI” and “MT SE”
Integrated Muting sensors – for two-way openings with pallet entrance/exit.
In this model, the Muting sensors are the first on one side
and the second on the other in relation to the vertical light
curtain (Figure 3).
This model is therefore two-way and is useful for
protecting pallet entrance/exit openings.

The point of intersection of the two muting
sensors (Figure 11) must be inside the
dangerous area in order to avoid accidental
actuation of the Muting function.
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 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 3
SERIES "MT S4" - KIT PREASSEMBLED OF JANUS LIGHT CURTAIN AND SENSORS ELEMENTS “MT S”
Integrated Muting sensors – for two-way openings with pallet entrance/exit.
This model is two-way and is useful for protecting pallet
entrance/exit openings (Figure 4).
Using this model, two methods of operation are possible:
Concurrent
The Muting function is activated following concurrent
interruption of sensors S1 and S2 (within maximum
4sec) (or S4 and S3 with material transiting in the
opposite direction). Muting status ends after clearing
of the opening and of S3 (or S2 with material
transiting in the opposite direction).
Sequential
The Muting function is activated following sequential
interruption of sensors S1 and S2, of the opening and of
sensors S3 and S4. It is important to remember that,
for correct actuation of the Muting function, the
sequence indicated in Figure 8 and Table 1 is
required (without time restrictions).
 The MT S4 models have two
available timeouts: 1) 30 sec;
2) infinite (Sequential operation).
 The pallet minimum length (in both
operation modes) must be 70cm (all
the 4 sensors have to be
simultaneously occupied).
Figure 4
Emitter
Receiver
Sensor 1
Sensor 2
Sensor 3
Sensor 4
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