Datasheet
HG
-
C
SERIES
MICRO LASER DISTANCE SENSOR
Timer setting function
Zero set function External input setting function
Threshold value fine adjustment function
Key lock function
Display setting function
Peak and bottom hold functions
Teaching & window comparator mode
OFF
OFF
ON
With an object below the sensor, press the TEACH key to set the valid range for distances via threshold values. There are 3 methods for
setting the valid range: 1-point, 2-point, and 3-point teaching.
The time mode options are “off-delay timer,” “on-delay timer,” “one-shot timer” and “no timer.” The counting time is fixed to 5 ms.
Off-delay timer
Function: Extends output signals by 5 ms.
Usage: Appropriate in case a connected device is slow to
respond and ON time is required to extend.
On-delay timer
Function: Overrides output signals for 5 ms after detection.
Usage: Convenient way to override temporary signals and
control with a time lag.
One-shot timer
Function: Sends output signals for only 5 ms after detection.
Usage: Useful when the signal duration needs to be
constant to meet inputs from a connected device.
This mode is also used to extend temporary signals
by a desired length of time.
This function compulsorily sets the measured value to “zero.”
The zero point can be set at a desired value. It is useful when
measuring steps or tolerance with reference to the height of a
sensing object.
* For other functions and procedures for setting the functions, see “PRO Mode Setting” from page 10.
One of four functions, “zero setting function,” “teaching
function,” “emission stopping function” and “trigger function” can
be assigned to an external input line.
Fine adjustment of threshold values can be performed while
measurement is proceeding on the display, and even after teaching.
This function protects setting conditions from unintentional
changes.
The peak hold function holds the maximum measured value which is output and displayed.
The bottom hold function holds the minimum measured value which is output and displayed.
* The peak hold function and the bottom hold function cannot be set at the same time.
* When the zero set function is executed while the peak hold function or the bottom hold function is valid, the held measurement value is reset.
Perform 1-point teaching and the threshold
range is set for the distance from the reference
surface of the sensing object.
Press TEACH once for the lower (first point) and
once for the upper limit (second point).
Useful for sensing objects at different distances.
This is the method to set the threshold range by
conducting the teaching at 3 points (sensing object A,
B and C). After teaching, the reference points are
automatically sorted in ascending order (reference
point 1, 2 and 3). The thresholds are set at the
midpoints between reference point 1 and 2, and 2 and
3, respectively.
Useful for sensing objects at different distances.
In addition to the teaching & window
comparator mode, the “rising differential
mode”, “trailing differential mode” and
“normal sensing mode” are available.
In normal sensing mode, “2-point teaching”
as basic teaching and “limit teaching,”
which is useful for very small objects and
backgrounds, are possible.
Sensing
level
Off-delay
timer
On-delay
timer
One-shot
timer
＋
V
0V
External
input
Control
output
Analog voltage output (0-5 V)
Analog ground (shielded)
5 ms 5 ms
5 ms 5 ms
5 ms 5 ms
3-point teaching
Sensing
object
A
TEACH
①
TEACH
②
TEACH
③
Sensing
object
B
Reference
point 1
Reference
point 2
Threshold value
Threshold value
Reference
point 3
Set to Light-ON
Sensing
object
C
Distance
2-point teaching
TEACH
①
TEACH
②
Lower limit
sensing object
Threshold
value
Threshold
value
Set to Light-ON
Upper limit
sensing object
Distance
OFF
OFF
1-point teaching
TEACH
①
Sensing
object present
Threshold
value
Reference point
Threshold
value
Set to Light-ON
Distance
ON
OFF
OFF
ON
Keep pressing both keys for 3 seconds.
Assign any one.
Teaching
Zero set
Trigger
Emission stop
How to indicate measured values of the moving sensed object can be chosen from three options, “Normal,” “Invert” and “Offset.”
* The zero set indicator (yellow) will turn ON while the zero set is valid.
* When the zero set function is executed while the peak hold function or the bottom
hold function is valid, the held measurement value is reset.
* When the display setting is set to offset, the zero set function cannot be set.
Useful functions
5.2
5.0
Solid line
・
Normal
・
Offset
Dashed line
・
Invert
2.5
Measuring distance
（
mm
）
Measuring near point
Analog voltage output
（
V
）
Measuring far pointMeasurement center
0
Example:
HG-C1050
■
Relation between the setting
display and the analog
voltage output
Outside the
measuring range
Display setting
NormalInvertOffset
Measuring
near point
Measurement center
Measuring far
point
Outside the
measuring range
Timer period: 5 ms (fixed)
7