SUNX Limited MJE-SF4B01 No.0005-03V
- 14 -
2-3
Protection Area
2-3-1 Sensing
Area
The sensing area is the zone formed by the sensing height of the sensor 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 9m for
SF4B-H -01
(12 to
64 beam channels) and
SF4B-A -01
(6 to 32 beam channels), 0.3 to 7m for
SF4B-F -01
and
SF4B-H -01
(72 to 96 beam channels) and
SF4B-A -01
(36 to 48 beam channels).
Take care that the sensing range becomes short after mounting either protection cover
(
FC-SFBH-
) (optional). Take care that if the sensing range is less than 0.3m, malfunction
may occur due to the optical structure.
<Example of Correct Installation>
<Example of Incorrect Installation>
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 serious injury or death.
Do not use any reflection type or recursive reflection type arrangement.
When connecting the sensor, use the correct combination of emitter and receiver (same
beam pitch and number of beam channels) and match their top-bottom orientation. Com-
bining different types of emitter and receiver could produce a non-sensing area, which may
result in serious injury or death.
Furthermore, facing several receivers towards one emitter, or vice versa, could produce a
non-sensing area or cause mutual interference, which may result in serious injury or death.
