Arrangement Of The Muting Sensors For Timing Controlled 2-Sensor Muting - Leuze electronic MSI-MD-FBX Original Operating Instructions

6.2.4

Arrangement of the muting sensors for timing controlled 2-sensor muting

When doing so, both the MS1 and MS2 sensors must be arranged so that they can be activated simultane-
ously within 4 s by the transport material but cannot be simultaneously activated by a person within this
time. Arrangements with crossed beams are often used. The intersection point is located here within the
danger zone. This prevents muting from being triggered unintentionally. With this arrangement, an object
can be transported through the protective field in both directions.
NOTICE
Muting accessories from Leuze electronic, for example muting sensor sets and matching device
columns, facilitate the installation of muting applications significantly.
a
b
1 Danger zone
2 Receiver
3 Transmitter
MS1 Muting sensor 1
MS2 Muting sensor 2
S Minimum distance between the protective field of the AOPD and the detection points of the muting-sensor
light beams
a,b Distance between muting object and other fixed edges or objects (<200 mm)
d Distance from the intersection point of the muting-sensor light beams to the protective-field plane
(<50 mm)
Fig. 6.3: Typical arrangement of the muting sensors for timing controlled 2-sensor muting (example acc. to
IEC TS 62046)
With timing controlled 2-sensor muting, the beams from the muting sensors should intersect behind the
protective field of the safety sensor, i.e. within the danger zone, to prevent muting from being triggered un-
intentionally.
Distances a and b between fixed edges and the muting object (e.g. transport material) must be such that a
person cannot enter through these openings undetected while the pallet passes through the muting zone.
However, if it is assumed that persons are located here, the risk of crushing must be prevented, e.g. with
wicket gates, which are integrated electrically into the safety circuit.
Leuze electronic
S
MS2
MS1
2
3
4
4
MS1
1
1
MSI-MD-FBX
d
MS2
2
a
b
3
Mounting
22