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Z4D-F
Correct Use
■
Mounting
Install the Sensor so that the optical axis of the Sensor and the
surface of the object meet at right angles (i.e., the panel that
incorporates the light source is parallel with the object). For accu-
rate results, it is recommended that the sensing distance is set to
the measurement point (4 mm).
Light source surface
Sensing object surface
Note:
As the optical axis will be adjusted later, temporarily fix the
Sensor.
Wiring
Connect the Sensor to the controlling device using an attached
sensor cable. Do not switch the power ON during wiring. Refer to
the instructions on the Sensor and the connection diagram (page
page 8) before connecting the Sensor to the controlling device.
Axis Adjustment
When the Sensor power is switched ON, the red transmitter indi-
cator is lit. Move the Sensor so that the red beam (see the figure
below) focuses on the object. The entire light beam should be
focused on the object or an error will result.
After the optical axis has been adjusted, tighten the mounting
screws firmly.
Correct
Spot
10
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Surface
of object
Incorrect
Z4D-F04A
Analog Output
The Z4D-04A has an output of 3 V if a sensing object is located at
the standard distance (i.e., 4±0.3 mm). The output decreases if
the sensing object is closer to the Sensor and the output
increases if the sensing object is farther from the Sensor. The
output changes by 1.6 V±10% if the sensing object moves by 1
mm. The standard upper and lower limits of the output are 6.5
and 0 V respectively. If there is no sensing object or the reflectivity
of the sensing object is low and no light is reflected to the Sensor,
the analog output will output the standard upper limit.
Analog Output Diagram
Z4D-F04D
ON/OFF Output Diagram
The ON/OFF position can be set with the distance adjustor if a
sensing object is at the sensing range (i.e., 4±1.25 mm). The ON/
OFF position will shift farther from the Sensor if the distance
adjustor is turned clockwise and the ON/OFF position will shift
closer to the Sensor if the distance adjustor is turned counter-
clockwise.
If there no sensing object is present or if the reflectivity from a
sensing object is too small to reach the Sensor, the output will
turn OFF.
Z4D-F
Distance adjustor position
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