Response to no reaction/poor reaction of the Ultrasonic Motion
Sensor
For CE
[Symptom]
Ultrasonic Motion Sensor may not react, or react poorly .
[Cause]
Either of the following cases may lead to the aforementioned symptom.
A) When reflectors such as an ADF glass cleaner cloth box [a], an adhesive tape [b], or a tag [c] is attached too close to the
motion sensor, they are detected by ultrasonic wave, so that the sensor became unable to detect people in farther than these
reflectors .
B) When the sensor misdetects a reflector around the sensor as a wall or something by its learning function before getting into
sleep mode.
C) When the sensor fails to detect operators correctly, due to other sources of ultrasonic waves, such as automatic door, insect
repellent or other motion sensors in its environment.
[Remedy]
Action to be taken for A)
Check around the motion sensor and if an ADF glass cleaner cloth box [a], an adhesive tape [b], or a tag [c] is found too close
to the motion sensor, remove them.
Action to be taken for B)
B) Enable the motion sensor to learn its environment again, by using the learning function
B-1) Using the learning function when the machine gets into sleep mode, make sure there are no reflectors within 1m range in
front of the machine, then stand aside.
[NOTE] If you stand in front to conduct above procedure, the motion sensor misdetects the reflectors , and does not react.
B-2) Let the machine go into sleep mode
B-3) Wait for more than 10 seconds.
26
