© Panasonic Industrial Devices SUNX Co., Ltd. 2017
14
Protection Area
2-3 Protection Area
2-3-1 Sensing Area
WARNING
●
Be sure to install protection structure around the machine so that the operator must pass
through the sensing area of this device to reach the dangerous parts of the machine.
Furthermore, ensure that some part of the operator’s body always remains in the sensing area
when operation is done with the dangerous parts of the machine. Failure to do so can result in
death or serious injury.
● Do not use any reflection type or recursive reflection type arrangement.
●
Furthermore, facing several receivers towards one emitter, or vice versa, could produce a non-
sensing area or cause mutual interference, which may result in death or serious injury.
The sensing area is the zone formed by the sensing height of the device and the sensing range
between the emitter and the receiver.
The sensing height is determined by the number of beam channels. Furthermore, the sensing
range can be 0.3 to 7m.
Take care that if the sensing range is under 0.3m, malfunction may oc
-
cur due to the optical structure.
Top
Bottom
Sensing
height
The sensing height (Protective
height) is the area between the
line indicated in the top part and
line indicated in the bottom part.
Emitter
Receiver
Sensing area
Sensing range
Sensing
height
<Example of Correct Installation>
Dangerous part
Sensing area
Dangerous part
Protective
structure
Sensing area
<Example of Incorrect Installation>
Dangerous
part
Sensing
area
Sensing
area
Dangerous
part
