Sensitivity Setting - Panasonic PX-2 Series Manual

PRECAUTIONS FOR PROPER USE
PX-24 PX-24ES PX-23ES PX-26
External sensitivity adjustment function
• The sensitivity can be adjusted, within the range set by
the manual sensitivity adjuster, by an analog voltage (0 to
+5 V) applied to the external sensitivity adjustment input.
The sensitivity varies with the magnitude of the applied
voltage.
Notes: 1) The sensitivity of the auxiliary sensor is not changed.
2) Sensitivity adjustment beyond the range set by the manual
sensitivity adjuster is not possible.
Input voltage 0 V
Minimum
Sensitivity
3) This wire should be insulated if it is not used.
PX-SB1
• This sensor must always be used with the applicable
main sensor. This sensor does not work as a standalone
unit. (It cannot be used with PX-22 or PX-21.)
Selection of auxiliary area
• Aux area can be selected by aux area ineffective input of
the main sensor.
Ineffective input Auxiliary left
Sensing area
Auxiliary left / right OUT 1
area ineffective
Auxiliary left OUT 1 area
effective
Auxiliary right OUT 1 area
effective
Auxiliary left / right OUT 1
area effective
L: Low (0 to 1 V), H: High (4.5 to 31 V or open)
Note: Aux area disable input has nothing to do with the external control
function selection switch of the main sensor.
+5 V or open
Maximum
Maximum sensitivity set by the
manual sensitivity adjuster
Auxiliary right
OUT 1 area OUT 1 area
L L
H L
L H
H H
Long Range & Wide Area Photoelectric Sensor
Extraneous light monitor function
(Not incorporated in PX-22 and PX-21)
• If the sensor receives modulated light other than its own
(including auxiliary sensor's) light, the extraneous light
monitor output turns ON. The operation of the extraneous
light monitor output has absolutely no affect on sensing.
It is useful for recognizing presence of other sensors near
this sensor in case of intersecting AGV paths, etc.
Note: The extraneous light monitor output is not incorporated with a
short-circuit protection circuit. Do not connect it directly to a power
supply or a capacitive load.

Sensitivity setting

• Sensitivity adjustment of PX-SB1 is performed with the
emitter volume. If sensitivity cannot be set to close range
even after adjusting the emitter volume, then an aux
sensor might be receiving the light from the main sensor.
If that is the case, adjust sensitivity with the emitter
volume and the receiver volume. For details, see the
instruction manual that comes with the product.
Connection with the main sensor
Spiral lead wire
• Connect the main sensor connector attached cable to the
aux sensor connector attached cable.
• The spiral lead wire side of the main sensor connector
attached cable is the left aux sensor side.
PX-2
SERIES
Left aux sensor
Main sensor
Right aux sensor
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