Panasonic LA-511 User manual

ME-LA3_LA-511(05) No. 0044-13V
Instruction Manual
Laser Beam Sensor
LA-511
For safe use of laser products
1
Major Specifications
2
Cautions
Laser Radiation Fields
3
Mounting
4
Connections
5
Dimensions
7
8
9
Contents
Adjustments
6
Page
＜Name and Function of Each Section＞
＜Beam Alignment＞
＜Span Adjustment (adjustment of analog output voltage)＞
＜Comparison Level Adjustment＞
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Side-View attachment （LA-SV1）（optionally available）
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Thank you for purchasing ou
r
product.
To use this product safely and properly, please read this manual carefully.
Keep this manual at hand.
WARNING
●Never use this product as a sensing device for personnel protection.
●In case of using sensing devices for personnel protection, use products which meet laws and
standards, such as OSHA, ANSI or IEC etc., for personnel protection applicable in each region
or country.

1
●FDA (Food and Drug Administration, U.S.DHHS) part 1040 “Performance standards for
light-emitting products” has been established for the purpose of preventing users from
suffering injuries by laser products.
This product belongs to “Class 1 laser product” according to the degree of the hazard specified
in the classification system of FDA Standards 21CFR 1040.10 and 1040.11.
●A label shown below is affixed on the left side of the projectors body in accordance with the
requirements of said standards.
●When this product is used in China, affix the Chinese warning label (accessory) on the label in
the product.
(The left side of a projector)
1类激光产品
●CAUTION – The use of optical instruments with this product will increase eye hazard.
●Do not stare into beam directly in succession.
●CAUTION – Use of controls or adjustments or performance of procedure other than those
specified herein may result in hazardous radiation exposure.
●This product has following radiation specifications.
Item Specifications
Wavelength 780nm
Pulse Duration 10μs
Max. Output of Laser 1.4mW
F
or safe use of laser products
1
Certification and Idetification

2
VIEW FROM TOP
PLAN 1
Laser Radiation Fields
2
1: MONITOR (Beam Alignment Monitor)
2: OUT (Operation Indicator)
3: SPAN (Span Adjustor)
4: SENS. (Comparison Level Adjustor)
5: POWER (Radiation Emission Indicator)
500m
m
13mm
512
34
21mm
500mm
22mm 30mm
: Laser radiation fields
LA-511P
Sensor Projector LA-511D
Sensor Detector

3
LA-511
15mm
60mA or less
Dark-ON
Provided
Red LED lights when comparison output is in ON state.
Span adjustment : with endless, 18 turn adjustor.
Comparison level adjustment : with endless, 18 turn adjustor.
0 to +50℃(No dew condensation nor icing allowed)
-20 to +70℃(storage)
Red LED lights when laser is radiated.
Green LED lights when beam received properly, and yellow LED
lights when beam is deviated from center.
Laser radiated when connected to 0V, and radiation stopped when
left opened or connected to +V.
0.5ms or less
35 to 85%RH
Invisible laser beam
Enclosure : zinc die-casting, Top cover : PRO,
Front protective cover : Glass
MS-LA1 (mounting bracket) : 2 sets,
Screwdriver for adjustment 1 pc.
Pressure terminals : 2 pcs.
Line-bypass capacitor system
･Output voltage : ※
NPN transistor ･open collector
･Output impedance : 75 ohms
･Sink current : max. 100mA
･Residual voltage : 1V or less (at 100mA sink current)
0.4V or less (at 16mA sink current)
･Applied voltage : 30V DC or less
･Through rate : 8V/ms or over
･Temperature characteristic : 0.1% of F.S. per 1℃
1V (When all beam interrupted) to 5V (When all beam received)
12 to 24V DC ±10%, Ripple : 10% P-P or less
500mm
Item
Sensing Width
Sensing Distance
Repeat Accuracy
Power Source
Comparison Output
Output Operation
Response Time
Short Circuit Protection
Remote Interlock Input
Operation Indicator
Radiation Indicator
Comparison Output
Ambient Temperature
Ambient Humidity
Emitting Element
Ground
Accessories
Enclosure’s Material
Analog Voltage Output
Laser Beam
Alignment Monitor
Analog Voltage
Output
Current Consumption
Type
Model No.
Output
Indicator
Adjustment Function
Thru-beam
(Note)
In case of using this product as a CE marking conformity product, cable extension of the power wire and
I/O wire must be wthin 30m.
Ma
j
or Specifications
3

4
●This product has been developed / produced for industrial use only.
●Always turn the power off before performing wiring.
●Connect each other’s synchronization wires (Orange and Violet wires and its shields also) of
the projector and detector. Do not let them contact with the other wires.
●Verify voltage fluctuation so that it should not exceed the rated value.
●When a switching regulator is used for the power source of
the sensor, make sure to ground the frame ground (F.G.)
terminal to an actual ground.
●If any device that may cause noise (switching regulator,
inverter motor, etc.) is used near the sensor, make sure to
ground the frame ground (F.G.) to an actual ground.
●Use sensors under a stable condition to be obtained after
more than 10 minutes from power supply.
●Cable is extendable up to 50m by using 0.3mm2or bigger
wire, expect for the sync, (Orange and Violet).
Use shielded cord for extension of the analog voltage
output cord (White). In case of using this product as a
CE marking conformity product, cable extension of
the power wire and I/O wire must be within 30m.
●Do not use the sensor where there is excessive vapor,
dust or corrosive gas, or in the situation where they
could be exposed directly to water.
●Do not run sensor cables parallel to high-voltage lines or
power lines, nor put them together in the same raceway.
Doing so may cause malfunctions from inductive interference.
●LA-511 employs a line-bypass capacitor system to enhance electrical noise resistance. If there
is any equipment near the sensor such as supersonic welding machine which produces a high
frequency noise, and in addition, if sensor mounting framework is electrically conductive, an
insulation is required between the sensor and the framework.
●Dangerous – Do not disassemble.
Beside, do not use a power source with an auto-trans former as it may result in a failure to
danger if any fault happen at internal circuit.
Cautions
4
F.G. terminal
Switching regulator
F.G.
AC
-
+
Grounded
High Voltage
or Power lines
＋
[Auto-transformers]
Sensing circuitSensing circuit
[Insulated transformer]
＋
Sensor
Mounting
bracket
Insulator
Mounting frame (metallic)

5
●Since laser beam has a directional property, special care must be taken to the direction of the
sensor when mounting.
(Note 1) The tightening torque should be 1.17N･m{12kgf･cm} or less.
(Note 2) When mounting sensors using provided mounting brackets, secure firmly both sides of
the sensors with a pair of brackets.
(Note 3) Apply the mounting brackets as shown in the illustration below, of which way will
permit you to make beam alignment easily.
Mountin
g
5
[Projector]
[Detector]

6
●I/O Circuit Diagram
(Note 1) Be careful in connecting the synchronous cord (Orange and Violet) so that it doesn’t
touch with the other ones.
(Connection using the provided pressure terminals is recommended.)
(Note 2) When the remote interlock cord is connected to 0V, laser is ready to radiate.
(Laser radiation stops when the cord is left opened or connected to +V.)
(Note 3) Use a connection device with high enough input impedance (1M ohms or more) if
making use of analog voltage output.
And connect the shield wire of analog voltage output to the common input (0V) of the
connection device.
(Note 4) Insulate completely the end of unused cord wire always.
Connections
6
0.022μF
＋
－
Projector
Color of leads
12 to 24V DC
±10%
12 to 24V DC
±10%
+V (Brown)
Remote interlock (Pink)
SHIELD
0V (Blue)
Sync. (Orange and Violet)
+V (Brown)
SHIELD
SHIELD
Comparison output (Black)
Analog voltage
output (White)
0V (Blue)
Sync. (Orange and Violet)
Sensing circuitSensing circuit
Detector
D
D
＋
－
0.022μF
75Ω
Z
D1
Tr Z
D2
＋
－
LOAD
Symbol ･･･D
Z
D1 , Z D2
Tr
: Revers polarity protection Diodo
: Surge absorption Zener Diodes
: NPN Output Transistor
Internal Circuit External Connection Example
Internal Circuit External Connection Example

7
●Remote Interlock Input
When the remote interlock input (pink lead) is connected to 0V, the laser beam is emitted
(when it is either opened or connected to +V, the laser emission goes out).
You can make use of this procedure as one of daily checks before starting operation or if you
need to use a laser beam.
●Emitting the laser beam intermittently, you can check as well if the detection output is
energized or the sensors operation is normal.
+
Switch ON Laserradiated
Radiation stopped
-
+
-
Switch OFF
Left opened or connected to +V
Connected to 0V
Remote Interlock Input
Laser Beam
Comparison Output
(Dark-ON)
Laser radiated
Radiation stopped
ON
OFF

8
<Name and function of Each Section>
[Projector]
●Remote Interlock Cord:
As required by the requirements of the Radiation Safety Standards, laser radiation stops when
it is left opened or connected to +V.
Laser is ready to radiate when it is connected to 0V.
●Radiation Emission Indicator:
This LED lamp glows while laser is energized.
[Detector]
●Comparison Level Adjustor:
The comparison level of the comparison output can be set as you like with the 18 turn adjustor.
●Span Adjustor:
Under all beam incoming state, the analog output voltage is set to +5V with the 18 turn
adjustor.
●Comparison Output:
It turns on when the analog output voltage of the sensor becomes lower than the comparison
level set with the comparison level adjustor.
●Operation Indicator:
When the comparison output is ON, the red LED glows.
●Beam Alignment Monitor:
This is available as a monitor when making beam alignment.
When beam axis is deviated from center, one or more yellow LED glows.
If overall beam is received, a green LED glows.
A
d
j
ustments
7
Radiation Emission Indicator Operation Indicator
Comparison Level Adjustor
Span Adjustor
Beam Alignment Monitor Yellow LED ･･･ 4 PCS.
Green LED･･･ 1 PC.