1
Parallel Beam Line Sensor Z4LC
Visible RED Class II Laser Width/Profile
Measurement Sensor Offers High Speed,
Precision Object Measurement and
Multiple-Mode Operation for Positioning
and Size Discrimination
HFDA Class II IEC Class I visible RED laser
emitter and CCD receiver ensure high
performance
H10-micron resolution
H28-mm beam width
H40 mm fixed or 0 to 300 mm sensing
distance
H4 to 20 mA 12 bit binary/RS-232C analog
outputs
H3-level discrimination outputs: NPN
H5 input functions
H9 measurement modes, including edge
detection of clear material
Ordering Information
JSENSOR
Sensing distance Measurement width Type Part number
40 mm
28 mm Integrated type Z4LC-S2840
0to
300 mm
28 mm Separate type Z4LC-S28
JCONTROLLER
Controller Type Part number
NPN model Z4LC-C28
JEXTENSION CABLE
Extension cable for emitter and receiver Cable length Part number
2m Z49-C6 2M
8m Z49-C6 8M
Z4LCZ4LC
2
Specifications
JSENSOR
Item Z4LC-S2840 Z4LC-S28
Light source Visible-light semiconductor laser diode (wavelength: 670 nm, JIS Class 1, IEC Class I, FDA Class II)
Measurement width 28 mm
Sensing distance 40 mm 0to300mm
Min. sensing object 0.2 mm dia. 0.5 mm dia.
Linearity (See Note 1, 2.) ±0.1% F.S.
Temperature drift (see note 1) 0.01% F.S./_Cmax.
Ambient temperature Operating: 0 to 40_C(32_F to 104_F) with no icing or condensation
Storage: --15 to 50_C(5_F to 122_F) with no icing or condensation
Ambient humidity Operating/Storage: 35 to 85% (with no condensation)
Ambient illuminance Incandescent lamp: 1,000 lux max.
Sunlight: 3,000 lux max.
Vibration resistance 10 to 150 Hz half-amplitude of 0.75 mm or acceleration of 100 m/s2(whichever is smaller)
Degree of protection IEC60529, IP40
Material Diecast aluminum
Cable length 2m
Weight Approx. 520 g (including a 2-m cable) Emitter: Approx. 250 g
Receiver: Approx. 250 g
(including a 2-m cable)
Note: 1. The values given are typical values for one-side interruption mode 1 ( with the distance between an emitter and a receiver set to
40 mm and the target placed 20 mm from the receiver).
2. Linearity: The value deviated from the ideal straight line of measurement value outputs in one-side interruption mode 1 (when
the distance between an emitter and a receiver is set to 40 mm, and the target is placed 20 mm from the receiver).
JCONTROLLER
Item Z4LC-C28
Display 7-segment LED, 4 digits
Minimum reading 10 µm
Repeatability (See Note 1, 2.) 20 µm (process value for averaging: 16)
Measurement
l
t
t
Analog Output form 4 to 20 mA, load impedance: 300 Ωmax.
value output
g
Response time 3.3 ms (process value for averaging: 1)
Digital Output form 12-bit binary output
NPN open collector output: 30 VDC, 20 mA max.
Residual voltage: 2 V max.
1 digit (See Note 3.) 10 µm
Response time 3.3 ms (process value for averaging: 1)
Output signals Discrimination output (HI,
PASS, LOW) NPN open collector output 30 VDC 20 mA max.
Residual voltage 2 V max.
Input signals Enable input
LD OFF input
Bank switch input
Forced zero input
External reset input
Photocoupler input
Input voltage: 12 to 24 VDC±10%
ON voltage: 10.2 VDC min.
OFF voltage: 3.0 VDC max.
Input current: 10 mA (Typ.)
Communications RS-232C
Temperature drift 0.005% F.S./°C
Power supply voltage 24 VDC +10% --15%, ripple (p-p): 10% max.
Current consumption 0.4 A max.
Main functions Measurement value display, measurement mode selection, discrimination value
setting selection, number of process values to average selection, forced zero
function, bank number selection, linear output range setting, enable mode
measurement.
This table (with applicable Notes) continues on the next page.
Z4LC Z4LC
3
Table continued from previous page
Item Z4LC-C28
Ambient temperature Operating: 0 to 50°C(32_F to 122_F) with no icing or condensation
Storage: --15 to 60°C(5_F to 140_F) with no icing or condensation
Ambient humidity Operating/Storage: 35 to 85% (with no condensation)
Vibration 10 to 150 Hz half-amplitude of 0.15 mm or acceleration of 20 m/s2(whichever is
smaller)
Degree of protection IEC60529, IP20
Material ABS/PC
Weight Approx. 290 g
Note: 1. The values given are typical values for one-side interruption mode 1 (with the distance between an emitter and a receiver set to
40 mm and the target placed 20 mm from the receiver).
2. The repeatability is the variation in the display and digital output when the target is stationary. Performance specifications may
not be satisfied if the environment is altered adversely (e.g., if there is a strong magnetic field).
3. The value converted to a distance corresponding to the 1LSB of the digital output.
Communications Specifications
Electric Characteristics RS-232C
Synchronization Stop-start (asynchronous)
Baud rate 1200, 2400, 4800, 9600, 19200 bps
Data length 7, 8-bit ASCII
Parity Even, Odd, None
Stop bit 1-bit, 2-bit
Header/Footer CR, CR+LF, STX+ETX
Output data Measurement data, error messages, setting conditions output
Input commands Measurement mode selection, forced zero, etc.
Z4LCZ4LC
4
Explanation of Each Mode
JMEASUREMENT MODES
Select one of the following measurement modes according to the measurement conditions.
(1.) One-side Interruption Mode 1 (First Dark Edge)
Measures the width from the edge of the beam to the end of the
first dark section. (For meander detection, orientation flat
positioning, etc.)
(2.) One-side Interruption Mode 2 (First Light Edge)
Measures the width from the edge of the beam to the end of the
first light section. (For gap measurement, etc.)
(3.) Bar Diameter Measurement Mode (Diameter)
Measures the width from the first edge to the last edge of the
beam. (For measuring the diameter of bars, etc.)
(4.) Bar Position Measurement Mode (Position)
Measures the center point between the first edge and the last
edge of the beam. (For position detection of bars, etc.)
(5.) Pin Pitch Determination Mode (Pin Pitch)
Measures the pin pitch and determines if pins are centered or
not. It is passed if all pin pitch are within the tolerance and
rejected if not. (Pin number: 14 max.)
(6.) Pin Diameter Determination Mode (Pin Diameter)
Determines whether pin diameters are within a set range.
(Pin number: 14 max.)
(7.) Specified Edge Measurement Mode (Edge)
Measures the width of two specified edges.
(8.) Wire Position Detection Mode (Fine Line)
Measures the position of fine lines with minimum of 0.1 dia. The
measurement details are the same as that of bar position
measurement mode. (For positioning of wires more than 0.1 dia.)
(9.) Transparent Object Edge Detection Mode (Glass)
Detects the edge of glass boards and transparent sheets. The
distance between the upper edge of the beam and the edge of
the transparent object is measured. (For detecting edges of
transparent objects.)
Forced Zero Function
The displayed value can be set to zero by the ZERO/ENT Key on
the front panel or external input.
Suitable for the discrimination of standard workpieces.
Analog Output Setting Function
The range of analog output can be set within the measurement
width28mm.
Enable Mode Measurement Function
The processing item (i.e. maximum, minimum, maximum minus
minimum, or average) can be set. The set item is calculated and
output while the enable mode signal is input.
Suitable for the measurement of bar movement.
Z4LC Z4LC
5
Nomenclature
JSENSORS
Z4LC-S2840
Z4LC-S28 (Link has been omitted.)
Connector Emitter Receiver Connector
LInk
JCONTROLLER
Z4LC-C28
Discrimination indicators
Bank No. indicator Operation keys
Display
Forced zero indicator
Emission indicator 28-pin connector D-sub 9-pin connector
Receiver connector
Emitter connector
Terminal block
Operation
JINPUT/OUTPUT SPECIFICATIONS
I/O Signals
I/O Signals Specifications
Input Signals Enable input (ENABLE)
LD OFF input (LD-OFF)
Bank switch input (BANK)
Forced zero input (ZERO)
External reset input (EXRESET)
Photocoupler input
Input voltage: 12 to 24 VDC±10%
ON voltage: 10.2 VDC min.
OFF voltage: 3.0 VDC max.
Input current: 10 mA (Typ.)
Output Signals Discrimination output (HI,PASS,LOW)
Error output (ERR)NPN open collector output: 30 VDC, 20 mA max.
Residual voltage: 2 V max.
Binary Data Output D0 to D11,STB NPN open collector output: 30 VDC, 20 mA max.
Residual voltage: 2 V max.
Z4LCZ4LC
6
JTERMINAL CONNECTIONS
Z4LC-C28 (Rear Section)
28-pin Connector (I/O)
D-sub connector
(communications)
24 VDC 0V FG
28-pin Connector (I/O)
Pin No. Signals
1Output COM
2D0 (LSB)
3D2
4D4
5D6
6D8
7D10
8STB
9PASS
10 ERR
11 ZERO
12 ENABLE
13 Input COM
14 Linear Output
GND
15 Output COM
16 D1
17 D3
18 D5
19 D7
20 D9
21 D11 (MSB)
22 HI
23 LOW
24 LD-OFF
25 BANK
26 EXRESET
27 Input COM
28 Linear Output
D-sub Connector
(Communications)
Pin No. Signals
1N.C
2RD
3SD
4N.C
5SG
6N.C
7N.C
8N.C
9N.C
Note: Pins 4 and 6, and pins 7
and 8 are respectively
connected internally.
Z4LC Z4LC
7
JINPUT/OUTPUT CIRCUIT
Input Circuit
Power supply (see note)
(12to24VDC) Input COM
Input
Input
Photocoupler
Internal circuit
Note: There is no need to be con-
cerned about the polarity of
power supply.
2.2 kΩ
560 Ω
Output Circuit
Internal circuit
Output
Output
Output COM
Power supply (12 to 24 VDC)
Load
Load
Z4LCZ4LC
8
Dimensions
Unit: mm (inch)
JCONTROLLER
Z4LC-C28
Connector
Connector
Connector
14.7 dia.
11.5 dia.
Two, M3.5×10
Panel Cutout
98
(3.86) 91
(3.58)
120 (4.72) 34.8
(1.37)
90
(3.54)
42.8
(1.69)
96 (3.78)
48
(1.89) 44
(1.73)
12
(0.47) 130
(5.12) 29
(1.14)
22.5
(0.89)
43
(1.69)
45+0.8
(1.77+0.3)
(3.62+0.03)
92+0.8
0
0
0
0
JSENSORS
Z4LC-S2840
Connector
Emitter Receiver
Beam
Optical
axis
Optical
axis
Two, M3
Connector
Two, 3.2-dia. holes
6.5-dia. spot facing, depth: 5
Vinyl-insulated
round cable, 5 dia.
(7/0.18 dia.),
4 conductors Standard length: 2 m Vinyl-insulated
round cable, 5.8 dia.
(7/0.18 dia.), 7 conductor
Standard length: 2 m
11.5 dia. 14.7 dia.
15.5±0.3
(0.61±0.012)
31
(1.22)
123 (4.84)
55 (2.17)
28 (1.10)
31.4
(1.24)
42.5
(1.67)
57.5
(2.26)
40 (1.57)
35.5 (1.40)
34 (1.34)
20
(0.79±0.004)
28
(1.10)
Z4LC Z4LC
9
Vinyl-insulated round cable,
5 dia. (7/0.18 dia.), 4 conductors
Standard length: 2 m
Z4LC-S28
Connector
Emitter Receiver
Beam
Optical axis
Optical
axis
Connector
Vinyl-insulated round cable, 5.8 dia.
(7/0.18 dia.), 7 conductors
Standard length: 2 m
Four, M4, depth: 4 Four, M4, depth: 4
Two,
4.5 dia.
11.5 dia. 14.7 dia.
Two,
4.5 dia.
31
(1.22)
15.5±0.3
0.61±0012
57.5
(2.26)
42.5
(1.67) 31.4
(1.24) 17.4
(0.69)
28
(1.10)
28
(1.10)
35.5
(1.40)
55 (2.17)
Z4LCZ4LC
10
Precautions
The Z4LC Parallel Beam Line Sensor, is a Class 1 Laser Product
according to EN60825 (IEC825) and JIS C6802 and a Class II
Laser Product according to FDA (21 CFR1040.10) (see note).
The Z4LC is meant to be built into final system equipment. Pay
special attention to the following precautions for the safe
use of the product:
Note: Europe: Class 1 of EN60825: 1991 = IEC825: 1984 &
IEC825-A1: 1990
Japan: Class 1 of JIS C6802: 1991
U.S.A.: Class II of FDA (21 CFR1040.10)
•Use this product as specified in this datasheet, or you may
be exposed to hazardous laser radiation.
•Be careful not to expose your eyes directly to the laser radi-
ation or indirectly to laser radiation reflected from mirror or
shiny surfaces.
•To avoid exposure to hazardous laser radiation, do not dis-
place nor remove the protective housing during operation,
maintenance, and any other servicing.
•The user should return the product to OMRON for all repair
and servicing.
•When used in other countries, observe the regulations and
standards specified by each country.
JLABEL INDICATIONS
EN
JIS
Certification and Identification Label Aperture Label
Class II Caution
Label Logo Type
Note: Use of controls, adjustments, or procedures other than
those specified herein may result in hazardous radiation
exposure.
FDA
JMEASUREMENT ACCURACY
To improve the measurement accuracy, place the sensing object
as close as possible to the receiver.
JCOMPATIBILITY
The Sensor or Controller can be used with another controller or
sensor. However, the emitter and receiver are adjusted as a set.
When setting up the Sensor, be sure to set the binary level
before operation.
JMAINTENANCE
Install the Sensor in clean environment and keep the filter on the
front panel of the Sensor free from oil and dust. If affected by oil
or dust, clean the filter as follows.
Use a blower brush (used to clean camera lenses) to blow large
dust particles from the surface. Do not blow the dust away with
your mouth.
Use a soft cloth (for lenses) with a little alcohol to remove the
remaining dust. Do not use a scrubbing action when cleaning as
scratches on the filter could result in a Sensor malfunction.
JENVIRONMENT
Do not use in strong electromagnetic fields or in an environment
where the operation of the Sensor is subject to the reflection of
intensive light (such as other laser beams or electric arc welding
machine).
The Sensor may not detect the object or the resolution may be
insufficient depending on the material or shape of objects. (i.e.
transparent objects, etc.)
JMUTUAL INTERFERENCE
Sensors can be closely mounted. Do not, however, make each
laser beam closer, or the Sensors may malfunction.
JAPPROPRIATE USE
The user must operate the product according to the performance
specifications described in the instruction manual.
Before using the product under conditions which are not
described in the manual or applying the product to nuclear
control systems, railroad systems, aviation systems vehicles,
combustion systems, medical equipment, amusement machines,
safety environment, and other systems, machines, and
equipment that may have a serious influence on lives and
property if used improperly, consult your OMRON representative.
Make sure that the ratings and performance characteristics of the
product are sufficient to the systems, machines, and equipment,
and be sure to provide the systems, machines, and equipment
with double safety mechanisms.
Z4LC Z4LC
JWIRING
Do not impose voltage exceeding the rated voltage, or the
Sensor may be broken.
Do not short-circuit the load supplied with open collector output,
or the Sensor may be damaged.
Do not lay power supply cable for the Z4LC together with
high-voltage lines or power lines to prevent interference,
damage, or malfunction.
A Z49-C6 Extension Cable (2 or 8 m long) can be connected to
the sensor cable or amplifier cable. The total length of the sensor
cables or amplifier cables, however, must be 10 m or less. Use a
shielded cable to extend the amplifier cable, in which case the
same kind of shielded cable as that of the amplifier cable must be
used.
Use an insulated transformer for the power supply of the Z4LC as
shown in the illustration. Do not use an autotransformer or the
Z4LC may malfunction.
+
-- Z4LC
Z4LC
+
--
Autotransformer
Commercial
power supply
Commercial
power supply
Insulated transformer
Incorrect
Correct
Note: The product has been produced at OMRON Ayabe which obtained ISO9001-approval for its quality system
and ISO14001-approval for its environmental management system from international certification bodies.
Cat. No. GC MSEN4 4/01 Specifications subject to change without notice. Printed in U.S.A.
OMRON ELECTRONICS LLC
OneEastCommerceDrive
Schaumburg, IL 60173
NOTE: DIMENSIONS SHOWN ARE IN MILLIMETERS. To convert millimeters to inches divide by 25.4.
1-800-55-OMRON
OMRON CANADA, INC.
885 Milner Avenue
Scarborough, Ontario M1B 5V8
416-286-6465
ROMRON ON--LINE
Global -- http://www.omron.com
USA -- http://www.omron.com/oei
Canada -- http://www.omron.com/oci
