Operation
FUNCTIONS
Classification
Functions
Range indicators
(NEAR and FAR), also
used as laser warning
lights (Sensor and
Amplifier)
The FAR green indicator and NEAR green indicator will be lit when the object is within the measurement
range of the Sensor.
When the object is outside the measurement range or in the case of insufficient or excessive light, both the
NEAR and FAR indicators will blink.
If the object is near the Sensor but within the measurement range, only the NEAR indicator will blink.
Mount the Sensor so that both the NEAR indicator and FAR indicator will be lit when the object is placed in
front of the Sensor.
To alert the user that the laser beam is turned ON when the laser OFF input is turned OFF, the NEAR
indicator and FAR indicators act as laser warning lights. When the Sensor is turned ON, either the NEAR
indicator or the FAR indicator or both of the indicators will either be lit or will blink. When the laser OFF input
is ON, the the indicator(s) will not blink or be lit.
blinking
blinking
Approximately 28 mm
Lit
Measurement point
40mm
Approximately 52 mm
NEAR indicator
FAR indicator
NEAR indicator
FAR indicator
Approximately 55 mm
Lit
Lit
Lit
blinking
Approximately 155 mm
Z4M-W40
blinking
-
Z4M-W100
Stability indicator
(Amplifier)
The indicator will be lit in green when the object is within the measurement range and the receiver receives
light intense enough to be reflected from the object. When the indicator is green, the Sensor’s measuring
operation is stable.
If the indicator is not lit in green while the sensitivity selector is set to WHITE; set it to BLACK or AUTO for a
more stable measuring operation. Normal output can be obtained even if the indicator is not lit in green.
The indicator will be lit in red when there is no object in front of the Sensor or if the light reflected from the
object is either insufficient or too intense. If the indicator is red, check if the sensitivity selector is set correctly
(according to the reflection ratio of the object).
Sensitivity selector
(Amplifier)
Set the sensitivity selector according to the reflection ratio of the object.
If the color of the object is white, set it to WHITE.
If the color of the object is black, set it to BLACK.
If the color of the object is not white or black, set it to AUTO.
When the sensitivity selector is set to AUTO, the enable output may be ON even if the object is outside the
measurement range, in which case set the sensitivity selector to WHITE so that the number of errors that may
occur can be minimized.
Response speed
selector (Amplifier)
Select the response speed by taking the required response speed and resolution into consideration.
Response speed Fast:
Resolution Low
Response speed Slow:
Resolution High
Offset adjuster
(Amplifier)
Offset adjustment is possible at any position within the measurement range since the output will be 0 V.
The output voltage must be within
±
5 V, or the linearity of the output cannot be guaranteed.
The output is adjusted before shipping, so that it will be approximately 0 V when the object is in the middle of
the measurement range.
Sensing
distance
(mm)
Sensing
distance
(mm)
Li
near
output
(V
)
Li
near
output
(V
)
Z4M-W40
Z4M-W100
Z4M
Z4M
