Sensitivity Adjustment; Automatic Interference Prevention Function - Panasonic SUNX CX-400 Series Instruction Manual

6

SENSITIVITY ADJUSTMENT

To understand sensitivity adjustment, you must first understand the differ-
ence between the "light received" and the "dark" condition.
Do not confuse the "light received" and "dark" condition with the operation
modes "Light-ON" and "Dark-ON"!
Light received condition
Emitter Receiver
Sensor Reflector
Sensor
be sensed
Relationship between output and indicators
Light-ON
Stability Operation
Output
indicator indicator
ON
OFF
= lit, = unlit
Use a standard screwdriver and turn the adjuster slowly. Using
excessive force will damage the adjuster.
Dark condition
Object to
be sensed
Emitter
Object to
Sensor
be sensed
Sensor
Object to
Dark-ON
Sensing Operation
Output
condition indicator
Stable
light
OFF
Unstable
light
Unstable
dark
ON
Stable
dark
This procedure assumes that "Light-ON" is set for the operation mode.
If "Dark-ON" is the operation mode, the output will behave the other way
around!
Sensitivity
Step
adjuster
1
Receiver
2
Reflector
3
4
Optimum position
Stability
indicator
*1
Remember, this only applies if the operation mode is Light-ON.
AUTOMATIC INTERFERENCE
7
PREVENTION FUNCTION
This function is not available for the thru-beam type sensor. See
"INTERFERENCE PREVENTION FILTERS" on page 4.
The automatic interference prevention function allows you to mount up to
two sets of sensors next to each other.
3
Description
Turn the sensitivity adjuster fully counter-
clockwise to the minimum sensitivity posi-
tion, MIN.
In the "light received" condition, turn the
sensitivity adjuster slowly clockwise to find
point A where the sensor output turns
*1
ON.
In the "dark" condition, turn the sensitivity
adjuster clockwise until the sensor output
*1
turns ON.
Turn it back slowly to confirm point B,
where the sensor output just turns OFF.
If the sensor output does not turn ON even
when the sensitivity adjuster is turned fully
clockwise, point B is the position at MAX.
The position exactly between points A and
B is the optimum sensing position.
2 sensors mounted closely together
*1