Mounting
Leuze electronic
MLD 300, MLD 500
37
6.2.2 Selecting optoelectronic muting sensors
Muting sensors detect material and supply the signals necessary for muting. If muting conditions are
fulfilled, the safety sensor can use the signals from the muting sensors to bridge the protective function.
The signals can be generated by e.g. optoelectronic sensors from Leuze electronic:
• Dark-switching Reflection Light Beam Devices
• Dark-switching One-way Light Beam Devices
• Light-switching optical scanners
6.2.3 Minimum distance for optoelectronic muting sensors
The minimum distance is the distance between the protective field of the AOPD and the detection points
of the muting sensor light beams. This distance must be maintained when mounting the muting sensors
to prevent the pallet or material from reaching the protective field before the muting signals can bridge the
protective function of the AOPD. The minimum distance is dependent on the time needed by the system
to process the muting signals.
Depending on the given application, calculate the minimum distance for either timing controlled 2-sen
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sor muting see chapter 6.2.4 „Arrangement of the muting sensors for timing controlled 2-sensor
muting“or for sequence controlled 2-sensor muting see chapter 6.2.5 „Arrangement of the muting sen
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sors for sequence controlled 2-sensor muting“.
When arranging the muting sensors, make certain that the calculated minimum distance to the protec
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tive field is maintained.
6.2.4 Arrangement of the muting sensors for timing controlled 2-sensor muting
With timing controlled 2-sensor muting, One-way or Reflection Light Beam Devices are frequently used.
The material can move in both directions (see chapter 4.7.1).
Prealigned Muting Sensor Sets (accessories) for MLD safety sensors simplify the set-up of this muting
solution see figure 14.13
Mounting instructions for MLD Muting Sensor Sets be downloaded on the Internet
.
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