Fastus D4RF Series, User Manual

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Basic Usage
Frequently Used Functions
„
Edge Direction ([S7] - [D2], [S7] - [D8])
Select a direction of detection with Edge height.
Selectable option Function description
Both (default value) Output is generated when the received light amount increases or decreases.
Negative Output is generated when the received light amount decreases.
Positive Output is generated when the received light amount increases.
ON
OFF
ON
OFF
ON
OFF
• Edge direction criteria
Set Edge direction to match the conditions and methods of detection, as shown below.
(When [S1] “N.O./N.C.” is set to N.O.)
Detection condition Detection method Edge direction
Detection when object is present Through-beam Negative
Reflective Positive
Detection when object is not
present
Through-beam Positive
Reflective Negative
Detection when object is present
and is not present
Reflective, through-beam Both
Positive: On when the
received light
amount
increases
Negative: On when the
received light
amount
decreases
Both: On when the
received light
amount increases
or decreases
Output
Output
Output
Edge direction
Time
Received light amount