Span & Shift Adjustment
LA-300
LED Collimated Beam Sensor
LED Collimated Beam
Type Which Is as
Accurate as a Laser
Sensor, but Much Safer.
576
SERIES
MEASUREMENT SENSORS
LA
LD
Outer Diameter
Measurement
VI
Image Sensor
GP-A
Displacement Sensing
Collimated Beam Sensors
LA-300
Marked
Conforming to EMC Directive
Compact Size
Its emitter and receiver are much small-
er compared to those of the amplifier
built-in type (LA-510). Hence, they can
be installed even in a narrow space
inside an automatic assembly machine,
etc.
Safe Red LED Beam
Since a red LED, harmless to your
eyes, has been incorporated as the
beam source, you are free from strict
laser safety regulations.
Moreover, due to the red LED beam
source, the measuring spot is visible,
which makes positioning of the object
simple.
Simple Beam Alignment
Beam alignment is easy by using the
target label (accessory).
Further, the 3-stage stability indicators
on the amplifier indicate the incident
beam level at a glance.
Target label
Stability indicators
Long sensing range type / LA-310
Slim type / LA-305
Two Comparative Outputs
Plus One Analog Output
In addition to 1 to 5V analog output, two
comparative outputs (HIGH, LOW)
have been incorporated.
For the analog output, in addition to the span adjustment function, a convenient
shift function which enables the analog voltage to be shifted byⳲ0.5V has been
incorporated.
Example: To shift the analog voltage from 2.51V to 3.00V with a certain amount of beam interruption
1.00
1.49
5.00
5.49
Interrupted
width
After adjustment
0
Analog output (V)
Lightest
Darkest
Before adjustment
Light beam
Sensing object
Emitter
Receiver
Before adjustment
Darkest condition 1.00V 1.49V
Setting condition
Lightest condition
After adjustment
2.51V
5.00V 5.49V
3.00V
䡵 Emitter:
W20⳯H20⳯D45mm
䡵 Receiver:
W20⳯H20⳯D35mm
䡵 Emitter:
W18⳯H40⳯D10mm
䡵 Receiver:
W18⳯H40⳯D10mm
External Synchronization
The timing and the effective duration of
the comparative outputs can be con-
trolled by an external input. (Either
edge trigger or gate trigger is selec-
table.)
577
LA-300
MEASUREMENT SENSORS
LA
LD
Outer Diameter
Measurement
VI
Image Sensor
GP-A
Displacement Sensing
Collimated Beam Sensors
LA-300
APPLICATIONS
10mm "0.1mm opaque object LA-310
5mm "0.05mm opaque object LA-305
NPN open-collector
transistor
PNP open-collector
transistor
CA-R2 Relay contact
CA-T2
CA-B2
ORDER GUIDE
Sensor heads
Amplifiers
Detecting unseated wafers
Two sensors inspect vertical and late-
ral displacement of wafers.
Inspecting burrs on workpieces
If burrs are present, they increase the
width of beam interruption.
Detecting glass bottles
Even clear glass bottles are reliably
detected.
Wafer
Index table
Minimum sensing
Appearance Sensing range Sensing width object Model No.
500mm
300mm
Type
Long sensing
range
Slim
Designation Model No. Description
Digital panel
controller
(Note)
POWER
STB
SPAN
SHIFT
ES
HIGH
LOW
Appearance Model No. Output
LA-A1
LA-A1P
Type
NPN output
PNP output
Always use the sensor head and the amplifier together as a set.
OPTIONS
NPN open-collector
transistor
NPN open-collector
transistor
NPN open-collector
transistor
With BCD output
This is a multi-functional controller having
mathematical functions, hold function, etc.
·
Supply voltage: 100 to 240V ACⳲ10%
· No. of inputs: 2 Nos. (sensor inputs)
· Input range: 1 to 5V DC
· Power supply for sensor: 12V DC, 150mA
· Main functions:
Mathematical functions, hold function, auto-
reference function, zero-adjust function, etc.
This is a very small controller which allows
two independent threshold level settings.
· Supply voltage: 24V DCⳲ10%
· No. of inputs: 1 No. (sensor input)
· Input range: 1 to 5V DC
· Main functions:
Auto-reference function, zero-adjust function,
start/hold function, etc.
CA2-T2
Note: If analog voltage output of LA-A1 or LA-A1P is shifted, the input range may be exceeded. In that
case, use CA2-T5 or CA-䡺5(input rangeⳮ10 toⳭ10V). For further details, refer to P.776lfor
the ultra-compact digital panel controller CA2 series, and to P.766lfor the digital panel controller
CA series.
Digital panel controller
•CA2 series
•CA series
LA-300
578
MEASUREMENT SENSORS
LA
LD
Outer Diameter
Measurement
VI
Image Sensor
GP-A
Displacement Sensing
Collimated Beam Sensors
LA-300
5mm
300mm
"0.05mm opaque object
0.2% F.S. /°C or less
Enclosure: Heat-resistant ABS
Cover: Heat-resistant ABS, Front cover: Glass
0.18mm23-core composite cabtyre cable, 2m long
Extension up to total 10m is possible, for both emitter and
receiver, with 0.18mm2, or more, cable. (Shield wire must be
extended with shield wire.)
Emitter: 70g approx., Receiver: 70g approx.
MS-LA3-2 (Sensor head mounting bracket): 2 Nos., Target label: 2 Nos.
LA-A1, LA-A1P
0.01mm or less (perpendicular sensing axis)
3 (Industrial environment)
0 toⳭ40°C (No dew condensation), Storage:ⳮ20 toⳭ70°C
35 to 85% RH, Storage: 35 to 85% RH
Sunlight: 10,000#x at the light-receiving face, Incandescent light: 10,000#x at the light-receiving face
Emission: EN50081-2, Immunity: EN50082-2
1,000V AC for one min. between all supply terminals connected together and enclosure
20MΩ, or more, with 250V DC megger between all supply terminals connected together and enclosure
10 to 150Hz frequency, 0.75mm amplitude in X, Y and Z directions for two hours each
500m/s2acceleration (50G approx.) in X, Y and Z directions for three times each
Red LED (modulated)
SPECIFICATIONS
Sensor heads
10mm
500mm
"0.1mm opaque object
0.1% F.S. /°C or less
Red LED (lights up when emitting)
0.22mm23-core composite cabtyre cable, 2m long
Extension up to total 10m is possible, for both emitter and
receiver, with 0.22mm2, or more, cable. (Shield wire must be
extended with shield wire.)
Emitter: 110g approx., Receiver: 100g approx.
MS-LA3-1 (Sensor head mounting bracket): 2 Nos., Target label: 2 Nos.
Enclosure: Die-cast zinc alloy
Top face: Aluminum
Slim
LA-305
Long sensing range
LA-310
Applicable amplifier
Beam width
Sensing range
Min. sensing object
Repeatability
Temperature characteristics
Emission indicator
Pollution degree
Ambient temperature
Ambient humidity
Ambient illuminance
EMC
Voltage withstandability
Insulation resistance
Vibration resistance
Shock resistance
Emitting element
Material
Cable
Cable extension
Weight
Accessories
Type
Item Model No.
Environmental resistance
579
LA-300
MEASUREMENT SENSORS
LA
LD
Outer Diameter
Measurement
VI
Image Sensor
GP-A
Displacement Sensing
Collimated Beam Sensors
LA-300
SPECIFICATIONS
Amplifiers
PNP output type
LA-A1P
NPN output type
LA-A1
Applicable sensor heads
Supply voltage
Current consumption
Comparative outputs
(HIGH, LOW)
Utilization category
Response time
Output operation
Short-circuit protection
Analog output
Slew rate
Temperature characteristics
External synchronization
Power
Stable incident beam
Operation
External synchronization
Span
Shift
HIGH (Over-dark) level
LOW (Under-dark) level
Pollution degree
Ambient temperature
Ambient humidity
EMC
Voltage withstandability
Insulation resistance
Vibration resistance
Shock resistance
Material
Cable
Cable extension
Weight
Accessory
Type
Item Model No.
Environmental resistance Indicators
Adjusters
LA-310, LA-305
12 to 24V DCⳲ10% Ripple P-P 10% or less
120mA or less (including sensor heads)
NPN open-collector transistor
•Maximum sink current: 100mA
•Applied voltage: 30V DC or less
(between comparative output and 0V)
•Residual voltage: 1.5V or less (at 100mA sink current)
0.5V or less (at 16mA sink current)
DC-12 or DC-13
0.5ms or less
HIGH output: ON when the received beam level is equal to or lower than HIGH (Over-dark) level
LOW output: ON when the received beam level is equal to or higher than LOW (Under-dark) level
Incorporated
Analog voltage
•Output voltage: 1V (Darkest) to 5V (Lightest)
•Output impedance: 75Ω
8V/ms or more
0.05% F.S./°C or less
Incorporated (Active-Low, either gate trigger or edge trigger is selectable)
Green LED (lights up when the power is ON)
Three green LEDs (light up in three stages in proportion to the amount of beam received)
Two orange LEDs (light up when High and Low comparative outputs are ON, respectively)
Green LED (lights up when the external synchronization input is effective, i.e., LOW)
15-turn adjuster sets the span for the analog output voltage
15-turn adjuster sets the offset for the analog output voltage
15-turn adjuster sets the HIGH output threshold level (Over-dark level)
15-turn adjuster sets the LOW output threshold level (Under-dark level)
3 (Industrial environment)
0 to Ⳮ50°C (No dew condensation), Storage:ⳮ20 to Ⳮ70°C
35 to 85% RH, Storage: 35 to 85% RH
Emission: EN50081-2, Immunity: EN50082-2
1,000V AC for one min. between all supply terminals connected together and enclosure
20MΩ, or more, with 250V DC megger between all supply terminals connected together and enclosure
10 to 150Hz frequency, 0.75mm amplitude in X, Y and Z directions for two hours each
500m/s2acceleration (50G approx.) in X, Y and Z directions for three times each
Enclosure: Heat-resistant ABS, Terminal cover: Heat-resistant ABS, Front cover: Polycarbonate
0.22mm2(shield wire: 0.15mm2) 7-core composite cabtyre cable, 2m long
Extension up to total 50m is possible with 0.22mm
2
, or more, cable. (Shield wire must be extended with 0.15mm
2
, or more, shield wire.)
200g approx.
Adjusting screwdriver: 1 No.
PNP open-collector transistor
•Maximum source current: 100mA
•Applied voltage: 30V DC or less
(between comparative output and ⳭV)
•
Residual voltage: 1.5V or less (at 100mAsource current)
0.5V or less (at 16mA source current)
D1
Tr1Ⳮ
ⳮ12 to 24V DC
Ⳳ10%
m1
ZD1
Tr2100mA max.
100mA max.
ZD2
ZD3
75Ω
Ⳮ
ⳮ
Load
Load
9
8
7
6
5
4
3
2
D24.7kΩ
(Gray) Analog output (Ⳮ)
(Shield) Analog output
(ⳮ
)
(Pink) External synchronization input ESⳭ
Users’ circuit
(Brown) ⳭV
(Blue) 0V
Color code
(White) Comparative output (LOW)
(Black) Comparative
(Black) output (HIGH)
(Pink/Blue) External synchronization input ESⳮ
Amplifier
LA-A1
Sensor heads
LA-310, LA-305
ⳭV (Brown)
0V (Blue)
SIG.
(White)
Shield
ⳭV (Brown)
0V (Blue)
Color code
Terminal No.
SYNC.
(Orange/Violet)
Receiver
Emitter
Amplifier
internal circuit
Sensor heads
Shield
Main circuit
LA-300
580
MEASUREMENT SENSORS
LA
LD
Outer Diameter
Measurement
VI
Image Sensor
GP-A
Displacement Sensing
Collimated Beam Sensors
LA-300
I/O CIRCUIT AND WIRING DIAGRAMS
LA-A1 NPN output type
LA-A1P PNP output type
I/O circuit diagram
m1
I/O circuit diagram
(Gray) Analog output (Ⳮ)
(Shield) Analog output (ⳮ)
(Pink/Blue) External synchronization input ESⳭ
Users’ circuit
(Brown)ⳭV
0V (Blue)
Color code
D1
D2
Ⳮ
ⳮ
12 to 24V DC
Ⳳ10%
(White) Comparative
(White) output (Low)
m1
(Black) Comparative output (HIGH)
Tr1
Tr2
ZD1 ZD2
Main circuit
ZD3
75Ω
4.7kΩ
10kΩ
Amplifier
LA-A1P
Sensor heads
LA-310, LA-305
Ⳮ
V (Brown)
Shield
Shield
Color code
Terminal No.
SYNC.
(Orange/Violet)
Amplifier
internal circuit
Sensor heads
9
8
7
6
5
4
3
2
Load
Load
100mA max.
100mA max.
0V (Blue)
0V(Blue)
SIG.
(White)
Receiver
Emitter
(Pink) External synchronization input ESⳮ
ⳭV (Brown) Ⳮ
ⳮ
Symbols ... D1: Reverse supply polarity protection diode
D2: Input protection diode
ZD1, ZD2, ZD3: Surge absorption zener diode
Tr1, T r2: NPN output transistor
Symbols ... D1: Reverse supply polarity protection diode
D2: Input protection diode
ZD1, ZD2, ZD3: Surge absorption zener diode
Tr1, T r2: PNP output transistor
or
Non-voltage contact or
NPN open-collector transistor
•Voltage between ESⳭand ESⳮ
Low: 0 to 1V
High:ⳭV or open
Notes: 1) When ESⳭ(pink) and ESⳮ(pink/blue) of external synchronization
input are connected, both HIGH and LOW comparative outputs are
triggered in the mode selected by the external synchronization
selection switch.
If the external synchronization function is not used, short-circuit
ESⳭand ESⳮand set the external synchronization selection
switch to gate trigger.
Notes: 2) To use the analog output (gray), choose a device with an input
impedance of 1MΩ, or more, and connect the shield wire of the
analog output to 0V (common input) of the device.
Notes: 3) Insulate all unused wires individually to avoid miscontact.
m1
or
Non-voltage contact or
PNP open-collector transistor
•Voltage between ESⳭand ESⳮ
Low: 0 to 1V
High:ⳭV or open
Notes: 1) When ESⳭ(pink/blue) and ESⳮ(pink) of external synchronization
input are connected, both HIGH and LOW comparative outputs are
triggered in the mode selected by the external synchronization
selection switch.
If the external synchronization function is not used, short-circuit
ESⳭand ESⳮand set the external synchronization selection
switch to gate trigger.
Notes: 2) To use the analog output (gray), choose a device with an input
impedance of 1MΩ, or more, and connect the shield wire of the
analog output to 0V (common input) of the device.
Notes: 3) Insulate all unused wires individually to avoid miscontact.
581
LA-300
MEASUREMENT SENSORS
LA
LD
Outer Diameter
Measurement
VI
Image Sensor
GP-A
Displacement Sensing
Collimated Beam Sensors
LA-300
I/O CIRCUIT AND WIRING DIAGRAMS
SENSING CHARACTERISTICS (TYPICAL)
LA-310 Long sensing range type
LA-305 Slim type
Correlation between transverse
deviation and output voltage
Correlation between interrupted
beam width and output voltage
Correlation between ambient tempera-
ture and output voltage variation rate
Correlation between transverse
deviation and output voltage
Correlation between interrupted
beam width and output voltage
Correlation between ambient tempera-
ture and output voltage variation rate
Connect color-coded wires in accordance with the table below.
The receiver wires should be connected on the upper termi-
nal block and the emitter wires on the lower terminal block.
Note: Do not connect any wire to the terminal 1.
Emitter Receiver
Terminal No. Color code Terminal No. Color code
2Shield 6Shield
3Orange/Violet 7White
4Blue 8Blue
5Brown 9Brown
Wiring diagram
12345 6789
Cable
Black Gray
Color code
Emitter
Receiver
6789 2345
Lower terminal block
for the emitter
Upper terminal block
for the receiver
POWER
STB SPAN
SHIFT
Shield
Shield
Brown
Blue
White
Brown
Blue
Orange/Violet
20 10 0 10 20
0
2
4
6
8
#
500mm
Deviation ?(mm)
CenterLeft Right
Output voltage (V)
Emitter
Receiver
01020 4030 50
–2
–1
0
1
2
Ambient
temperature (°C)
Amplifier Sensor
heads
Output voltage variation rate (%)
10 5 0 5 10
0
2
8
6
4
Deviation ?(mm)
Center
Left Right
Output voltage (V)
300mm
#
Emitter
Receiver
10 400203050
–2
–1
0
1
2
Ambient
temperature (°C)
Amplifier
Sensor
heads
Output voltage variation rate (%)
LA-300
582
MEASUREMENT SENSORS
LA
LD
Outer Diameter
Measurement
VI
Image Sensor
GP-A
Displacement Sensing
Collimated Beam Sensors
LA-300
PRECAUTIONS FOR PROPER USE
Mounting
Sensor heads
Amplifier
Amplifier
This product is not a safety sensor. Its use is not
intended or designed to protect life and prevent body
injury or property damage from dangerous parts of
machinery. It is a normal object detection sensor.
• The projected LED beam has a directionality. Hence, take
care of emitter and receiver mounting direction.
Beam alignment
•
Make sure that at least one stability indicator lights up when
you supply power to the amplifier connected with sensor
heads. While aligning sensor heads, if more stability
indicators light up, more reliable detection can be obtained.
•Beam alignment should be performed prior to any adjust-
ments on the amplifier.
•
If the bottom face and the side face of the emitter and the
receiver are mounted on the same plane surfaces, or if the
front faces of the emitter and the receiver of LA-305 are kept
parallel and their top face and side face are mounted on the
same plane sufaces, beam alignment need not be done.
•If mounting is not possible on the same plane surfaces,
affix the target label (accessory) on the front surface of the
receiver and adjust so that the emitted beam is incident at
the center of the crosshair. After the alignment, peel off the
target label.
•If either sensor head moves out of position, do the beam
alignment and then the amplifier adjustment also again.
•To obtain optimum beam alignment, use a voltmeter and
adjust the position to obtain the peak analog output signal
from the amplifier.
Description Function
1Power indicator
(Green LED)
2
Stable incident beam indicators
(Green LED⳯3)
3HIGH operation indicator
(Orange LED)
4LOW operation indicator
(Orange LED)
5External synchronization
indicator (Green LED)
6External synchronization
selection switch
7Span adjuster
8Shift adjuster
9HIGH level adjuster
0LOW level adjuster
AEmitting indicator
(Red LED)
Lights up when the power is on.
Light up in three stages proportional to the
amount of beam received.
Lights up when HIGH output is ON.
Lights up when LOW output is ON.
Lights up while the external synchronization
input is LOW. (Active-LOW)
Selects between gate trigger ‘ ’ and
edge trigger ‘ ’.
15-turn adjuster sets the span for the ana-
log output voltage.
15-turn adjuster sets the HIGH output
threshold level (Over-dark level).
15-turn adjuster sets the LOW output
threshold level (Under-dark level).
Lights up during emission.
15-turn adjuster sets the offset for the ana-
log output voltage. It calibrates the output
voltage at zero input.
Functional description
<Mounting on DIN rail>
1
Make sure that the mounting
stopper is latched inside.
Hook the front side of the con-
troller mounting section on the
35mm width DIN rail.
2Snap the controller down on
the 35mm width DIN rail.
mTo remove, insert a ‘minus’
screwdriver into the mounting
stopper and pull out.
Note:
When carring out high accuracy sensing with LA-305, install the mount-
ing bracket on the front face as shown in the above figure.
<Mounting with screws>
•
Use two commercially available
M4 screws.
The tightening torque should be
1.2N䡠m or less.
Emitter
Receiver
2-mounting
holes
Receiver
Emitter
Receiver
Emitter
Receiver
Aperture
Target label
Receiver
Target label
Aperture
4
5
6
3
2
1
POWER
STB
SPAN
SHIFT
ES
HIGH
LOW
7
8
9
0
A
Sensor head mounting bracket
MS-LA3-1 (Accessory)
Sensor head mounting bracket
MS-LA3-2 (Accessory) (Note)
2
1
Mounting
stopper
Mounting stopper
‘Minus’
screwdriver
POWER
STB.SPAN
SHIFT
ESHIGH
LOW
35mm
width DIN rail
M4 screw
Please
arrange
separately.
POWER
STB.SPAN
SHIFT
ESHIGH
LOW
LA-310 LA-305
LA-310 LA-305
LA-310 LA-305
Sensor head / LA-310 (Emitter)
•The tightening torque should be 0.5N䡠m or less.
583
LA-300
MEASUREMENT SENSORS
LA
LD
Outer Diameter
Measurement
VI
Image Sensor
GP-A
Displacement Sensing
Collimated Beam Sensors
LA-300
PRECAUTIONS FOR PROPER USE
Calibrating analog output
•The analog voltage output relates to the span and the shift
adjustments as in the figure below.
External synchronization
•The external synchronization input controls the timing or
the effective duration of the two comparative outputs.
Either edge or gate trigger is selectable.
Adjusting HIGH & LOW output levels (two independent outputs)
(e.g.) Wire detection
•
If you want to change the output voltage value after the cal-
ibration, the shift adjuster enables you to shift the analog
voltage up or down within aboutⳲ0.5V.
(e.g.) To shift the analog voltage from 2.51V to 3.00V with a certain amount of beam interruption
•
Block as much of the beam for
which you want the HIGH out-
put. Turn the HIGH adjuster to
just before the point where the
HIGH operation indicator lights
up. The threshold level in-
creases as the adjuster is
turned clockwise.
•
Again, block as little of the
beam for which you want the
LOW output. Turn the LOW
adjuster to just before the point
where the LOW operation indi-
cator lights up. The threshold
level increases as the adjuster
is turned clockwise.
Note: Either HIGH or LOW setting can be made first.
Application: When two sensor heads are used to measure the width of a sheet, the shift
adjuster can eliminate the need to move the sensor heads during set-up.
Up to now, the sensor heads have
had to be located at the exact
positions with respect to the refer-
ence object to obtain a 3V (center
of 1 to 5V) sensor analog output.
However, even a simulated center
is easily obtained by shift adjust-
ment without any realignment.
Note: To make the whole beam balanced between the lightest and the dark-
est conditions, the sensor heads should be positioned where the sen-
sor generates 3V analog output.
•Incident beam width⳱AⳭC
•Interrupted beam width⳱B
•Lightest condition: The entire beam is received.
•
Darkest condition: The entire beam is interrupted.
Explanation
How to calibrate the output into 1 to 5V
Further use of shift adjuster
HIGH output threshold level
LOW output threshold level
1Block the whole beam to
enter into the darkest con-
dition and set the output at
1V with the shift adjuster.
2
Allow the whole beam to be
received to enter into the light-
est condition and set the output
at 5V with the span adjuster.
3
For more accurate calibration,
repeat
1
and
2
.
5V
Shift
adjustment
Span
adjustment
1V
Analog output
Darkest
condition Lightest
condition
Incident
light
intensity
Wire
Light beam
A
B
C
Light beam
Sensing object
Emitter
Receiver
Before adjustment
Darkest
condition 1.00V 1.49V
Setting
condition
Lightest
condition
After adjustment
2.51V 3.00V
5.00V 5.49V
ON
OFF
High
Low
ON
OFF
40ms approx.
ON
OFF
High
Low
ON
OFF
(HIGH, LOW)
( )
Gate trigger Edge trigger
External
synchronization
selection
switch
Sensing
signal
Voltage between
ESⳭ and ESⳮ
External
synchronization
signal
Comparative
outputs
Light
beam
Reference width
Sensing object
Emitter
Emitter
Receiver
Receiver
Incident
light
intensity
Lightest
condition
Darkest
condition
LOW
(Under-dark)
output level
HIGH
(Over-dark)
output level
ON
OFF
ON
OFF
Comparative
output (HIGH)
Comparative
output (LOW)
High
Low
Analog voltage
External synchronization input signal: Low ... 0 to 1V, High ...ⳭV or open
Note:
If external synchronization is not used, set the external synchronization
selection switch on ‘Gate trigger’ and short-circuit the external synchro-
nization inputs (ESⳭand ESⳮ).
Wiring
•Make sure to carry out the wiring in the power supply off
condition.
•Verify that the supply voltage variation is within the rating.
•If power is supplied from a commercial switching regulator,
ensure that the frame ground (F.G.) terminal of the power
supply is connected to an actual ground.
•In case noise generating equipment (switching regulator,
inverter motor, etc.) is used in the vicinity of the sensor
head or the amplifier connect the frame ground (F.G.) ter-
minal of the equipment to an actual ground.
•Do not run the wires together with high voltage lines or
power lines or put them in the same raceway. This can
cause malfunction due to induction.
Others
•The sensor’s output is proportional to the amount of the
LED light received. Since there is some variation in the
light intensity at the center and the periphery of the
sensing area, take care that ‘output⳱dimension’ may not
hold.
•
For stable operation, use the sensor 10 min., or more, after
switching on the power supply.
•Avoid dust, dirt, and steam.
•Take care that the sensor does not come in direct contact
with water, oil, grease, or organic solvents, such as,
thinner, etc.
•Keep the front faces of the sensor heads free of dust, dirt,
metal powder, etc. Should the faces be covered with it,
deteriorating its performance, wipe them clean with a soft
cloth or blown air.
•Take care that the sensor head is not directly exposed to
fluorescent light from a rapid-starter lamp or a high
frequency lighting device, as it may affect the sensing
performance.
LA-300
584
MEASUREMENT SENSORS
LA
LD
Outer Diameter
Measurement
VI
Image Sensor
GP-A
Displacement Sensing
Collimated Beam Sensors
LA-300
14
23
20
20
3
13
45 3
15.4
9
Emission indicator (Red)
Beam-
emitting
part
2-"3.3 mounting holes
"4.3 cable 2m long (Gray)
14
18.7
20
20
3
13
35 3
15.4
9
Beam-
receiving
part
2-"3.3 mounting holes
"4.3 cable 2m long (Black)
2-"3.5 mounting holes
"4.2 cable 2m long (Gray)
18 10
40
4.5
3
12
Beam-emitting part
2-"3.5 mountig holes "4.2 cable 2m long (Black)
18 10
40
4.5
3
12
Beam-receiving part
POWER
STB.
SPAN
SHIFT
ES
HIGH
LOW
12
10
13
635
21.5
45
43
90
90
5.5
3
6
Suitable for 35mm width DIN rail
"6 cable 2m long
LOW operation indicator (Orange)
External synchronization selection switch
Power indicator (Green)
Stable incident beam indicators (Green) External synchronization indicator (Green)
HIGH operation indicator (Orange)
LOW level adjuster
Shift adjuster
Span adjuster
HIGH level adjuster
2-"4.5 mounting holes
DIMENSIONS (Unit: mm)
LA-310 Sensor head
LA-305 Sensor head
LA-A1
LA-A1P Amplifier
Emitter Receiver
Emitter Receiver
585
LA-300
MEASUREMENT SENSORS
LA
LD
Outer Diameter
Measurement
VI
Image Sensor
GP-A
Displacement Sensing
Collimated Beam Sensors
LA-300
10
20
14
6
2-"3.2
t 1.6
2-M3⳯0.5
6
13
2.6
2.6 3.4
3.4
23
23
6
13 3.4
2.6
3.4
2.6
14
3
2-"3.2
t 1.6
14
20 21
14
14
208.7
3.4
3.4
2.6
3
2.6
14
(45.2)23
14
16
2-"3.2
13
t 1.6
23
Beam-receiving part
33
10
23
2-M3⳯0.5
3
10
12
3.4
3.4
12
18
6
25
t 1.6
t 1.6
15
3.4 3.4
3
12
18
3.4
3.4 39
12
15
12
52
18
12 3.4
31015 (27.2)
3.4
47.5
DIMENSIONS (Unit: mm)
MS-LA3-1 Sensor head mounting bracket for LA-310 (Accessory for LA-310)
MS-LA3-2 Sensor head mounting bracket for LA-305 (Accessory for LA-305)
Material: Cold rolled carbon steel (SPCC-P3)
Material: (Uni-chrome plated)
Four M3 (length 15mm) screws with washers are attached.
Material: Cold rolled carbon steel (SPCC)
Material: (Uni-chrome plated)
Four M3 (length 25mm) pan head screws are attached.
Assembly dimensions
Mounting drawing with the receiver
Assembly dimensions