Fastus D4RF Series, User Manual

Page: 48 / 138

3-24
Setting the Threshold (Teach Function)
3-4-8 2-point Zone
The teach function is executed twice to set the upper and lower limits of the threshold.
As with the “1-point Zone” teach mode, the threshold can be set to a fixed range of received light amount, so
this method can be used to judge whether the object distance, position, and dimensions are within the set
range.
The thresholds are not set by percentage but are set with an actual object, so the upper and lower thresholds
can be set separately during the execution of the teach function, which differs from the “1-point Zone” mode.
Setup for 2-point Zone teach
Through-beam/
retro-reflective
Diffuse reflective Object
✓ (some
limitations)
✓
Required
„
Operation Procedure
* To cancel the setting of the teach function, press the
TEACH
ESC
key.
* To select the channel to teach (output 1 or output 2) in advance, hold down the
MENU
OK
key for 1 second or
more.
1
Press
TEACH
ESC
for less than 1 second.
The teach mode selection screen appears.
2
Use to display “2-point Zone”, and
then press
MENU
OK
.
The teach mode is set.
The OLED display returns to the RUN screen and
the received light amount appears.
Continued on next page
Low Received light amount: High Low
[Through-beam] Example with a screen fiber unit
Received light amount: High
[Diffuse reflective]
1
2
MENU
OK
TEACH
ESC
2-point Zone
E6
1
2
MENU
OK
TEACH
ESC
Mode selected
1
2
MENU
OK
TEACH
ESC
1200
100