Sensors
SA1E: Photoelectric
SA1E: Photoelectric Switches
Simple, compact design for world-wide usage.
Key features of the SA1E photoelectric sensor include:
• Four sensing methods
• Cable types and M8 connector types available
• NPN output, PNP output, light ON, dark ON options
• Long sensing ranges, high speed response
• CE marked
Through-beam
Type
NPN output
Cable Type
PNP output
NPN output
Connector
Type
General Specifications
PNP output
Polarized
Diffuse-reflective
Retroreflective Type
Type
Small-beam
Reflective Type
Light ON
SA1E-TN1
SA1E-PN1
SA1E-DN1
SA1E-NN1
Dark ON
SA1E-TN2
SA1E-PN2
SA1E-DN2
SA1E-NN2
Light ON
SA1E-TP1
SA1E-PP1
SA1E-DP1
SA1E-NP1
Dark ON
SA1E-TP2
SA1E-PP2
SA1E-DP2
SA1E-NP2
Light ON
SA1E-TN1C
SA1E-PN1C
SA1E-DN1C
SA1E-NN1C
Dark ON
SA1E-TN2C
SA1E-PN2C
SA1E-DN2C
SA1E-NN2C
Light ON
SA1E-TP1C
SA1E-PP1C
SA1E-DP1C
SA1E-NP1C
Dark ON
SA1E-TP2C
SA1E-PP2C
SA1E-DP2C
SA1E-NP2C
700 mm
(using 200 × 200 mm
white matt paper)
50 to 150 mm
(using 100 × 100 mm
white matt paper)
Applicable Standard
IEC606947-5-2
Rated Operational Voltage
12 to 24V DC
Operating Limits
10 to 30V DC
Rated Insulation Voltage
30V DC
Power Consumption / Current Draw
Emitter: 15 mA
Receiver: 20 mA
30 mA
Sensing Range
10 m
2.5 m (IAC-R5)
1.5 m (IAC-R6) (Note)
1 m (IAC-RS1)
Detectable Object
Opaque
Opaque/Transparent
Hysteresis
—
20% maximum
Response Time
1 ms maximum
Sensitivity Control
Adjustable using a potentiometer (approx. 260°)
Light Source Element
Infrared LED
Operation Mode
Light ON/Dark ON
Control Output
NPN open collector/PNP open collector
30V DC, 100 mA maximum
Voltage drop: 1.2V maximum
Short-circuit protection
LED Indicators
Operation LED: Yellow
Stable LED: Green
Power LED: Green (Through-beam type emitter)
Interference Prevention
—
Degree of Protection
IP67 (IEC60529)
Red LED
Infrared LED
Red LED
Q
Two units can be mounted close together
Sensors
1. Maintain at least 100 mm clearance between the SA1E photoelectric switch and reflector. Reflectors are not attached to the
photoelectric switch and must be ordered separately.
2. Standard cable length for cable type is 1 meter. Contact IDEC for longer cable lengths.
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USA: (800) 262-IDEC or (408) 747-0550, Canada: (888) 317-IDEC
Q-29
Sensors
SA1E: Photoelectric
General Specifications con’t
Through-beam
Type
Polarized
Diffuse-reflective
Retroreflective Type
Type
Small-beam
Reflective Type
Extraneous Light Immunity
Sunlight: 10,000 lux maximum, Incandescent lamp: 3,000 lux maximum (at receiver)
Operating Temperature
–25 to + 55°C (no freezing)
Operating Humidity
35 to 85% RH (no condensation)
Storage Temperature
–40 to +70°C (no freezing)
Insulation Resistance
Between live and dead parts: 20 MΩ maximum (500V DC megger)
Dielectric Strength
Between live and dead parts: 1000V AC, 50/60 Hz, 1 minute
Vibration Resistance
Damage limits: 10 to 55 Hz, Amplitude 0.75 mm p-p, 20 cycles in each of 3 axes
Shock Resistance
Damage limits: 500 m/s2, 10 shocks in each of 3 axes
Material
Housing: PC/PBT, Lens: PC (Polarized retroreflective type: PMMA), Indicator cover: PC
Accessories Included
Instruction sheet, Sensitivity control screwdriver
Weight
(approx)
Connection
Method
Cable Type
Emitter: 30g
Receiver: 30g
30 g
Connector Type
Emitter: 10g
Receiver: 10g
10 g
Cable Type
ø3.5 mm, 3-core, 0.2 mm2, 1-m vinyl cabtyre cable (2-core for the emitter of through-beam
type)
Connector Type
M8 connector (4-pin)
SA1E Accessories
Mounting Brackets
Connector Cable for connector type
Core
Part Number
Type & Length
Wires
Package
Quantity
Part Number
Type
SA9Z-K01
Vertical
SA9Z-K02
Horizontal
SA9Z-CM8K-4S2
1
SA9Z-CM8K-4L2
SA9Z-CM8K-4S5
Straight, 2m
Right angle, 2m
4
1
Straight, 5m
SA9Z-CM8K-4L5
Reflectors for polarized retroreflective type
Package
Type &
Part Number
Type
Quantity
Sensing Range
IAC-R5
Standard
IAC-R6
Small
IAC-RS1
Tape type
1
Package
Quantity
Right angle, 5m
Applicable Mounting
Bracket
Straight, 2m
IAC-L2
Right angle, 2m
IAC-L3
Straight, 5m
—
Slits for through-beam type
Part Number
SA9Z-S06PN02
0.5 mm
SA9Z-S07PN02
1.0 mm
SA9Z-S08PN02
2.0 mm
Package
Quantity
2
Sensing Range (m)
One side
Both sides
Maximum Detectable
Object Width (mm)
One side
Both sides
2.5
1.0
7.0
0.5
3.5
1.5
7.0
1.0
6.0
3.5
7.0
2.0
Dimensions
8.2
A
The slit can be pressed to fit on
the front easily in one touch.
Sensors
Q
Slit Width
6.1
0.3
32.1
18
Slit (Stainless Steel)
Q-30
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USA: (800) 262-IDEC or (408) 747-0550, Canada: (888) 317-IDEC
Sensors
SA1E: Photoelectric
Dimensions
Cable Type
13.4
9.0
10.8
2.9
Operation LED (yellow) (Note 1)
Sensitivity Control (Note 2)
1.2
19.5
3.4
Notes:
1. Power ON LED (green) for through-beam emitter.
2. No sensitivity control and stable LED are
attached on the through-beam emitter.
3. 5.2mm for polarized retroreflective type.
4. The connector length is 18mm when a rightangle connector cable (SA9Z-CM8K-4L) is
attached.
Receiver
2-M3
o3
.5
Polarized retroreflective
Diffuse-reflective
Small-beam reflective
-1
Through Beam
m
4.0
7.1
12.7
31.5
25.4
Emitter
17.4
8.8
17.1
17.4
Emitter
or
Receiver
Connector Type
13.4
9.0
10.8
2.9
Operation LED (yellow) (Note 1)
10.8
6.5
10.8
6.5
Sensitivity Control (Note 2)
Stable LED (green) (Note 2)
Projector
or
Receiver
19.5
3.4
12.7
17.4
8.8
31.5
25.4
Polarized retroreflective
Diffuse-reflective
Small-beam reflective
(Note 4)
6.3 4.5
4.0
Through Beam
See notes 1 through 4 above.
Projector
7.1
17.1
17.4
1.2
Receiver
2-M3
×1
Output Circuit and Wiring Diagram
• PNP Output
Main Circuit
4
Black
OUT
12 to 24V DC
3
0V
Main Circuit
1
Brown
Load
1
+V
4
3
Blue
+V
Brown
12 to 24V DC
Connector Pin Assignment
OUT
➃ (OUT)
Black
Load
• NPN Output
➁ (NC)
➂ (0V)
➀ (+V)
0V
Blue
Q
• Through-beam Type Emitter
Connector Pin Assignment
Sensors
+V
1
Main Circuit
Brown
12 to 24V DC
➃ (NC)
➁ (NC)
➂ (0V)
➀ (+V)
0V
3
Blue
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Q-31
Sensors
SA1E: Photoelectric
Dimensions, continued
Mounting Bracket
With Mounting Bracket
21.5
R12
3.4
6.0
3.4
1 4°
3.4
.0
19.5
1 4°
R12
24.8
13.4
8.0
0.5
.0
3.4
SA9Z-K01
21.5
14(
10.8
13.7
13.7
(3.2)
31.5
25.4
42.5
7°
25.0
(Note 2)
9.3
1.2
1.2
12.3
42.5
25.4
3.2
°
Note 1: Center of optical axis (through-beam type)
Note 2: Center of optical axis (polarized retroreflective,
diffuse reflective, and small-beam reflective type)
With Mounting Bracket
6.0
SA9Z-K02
17.6
1.0
21.5
12.7
21.5
12.7
4
Sensors
14.6
12.0
(Material: Stainless Steel)
Q-32
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5.0
.0
25.4
31.5
4.5
15.3
28.0
1.2
8.0
14.6
R12
8.4
8.4
4.5
12.7
34.8
R12
14°
1.2
14 °
Q
10.6
10.6
4.5
15.3
55.0
55.0
25.4
34.8
17.1
1.5
3.
ˆø
4.5
(3.2)
12.0
.0
5.0
Note 2: Center of optical axis (polarized retroreflective,
diffuse reflective, and small-beam reflective type)
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Sensors
SA1E: Photoelectric
Dimensions, continued
Reflector
2-ø4.3
IAC-R5
IAC-R6
IAC-RS1
35
8.3
0.2
4
8
40
42.3
34.3
72
60
35.3
25
3
9
51
3.3
2-ø3.6
(Effective reflecting area: 30 × 31 mm)
(Effective reflecting area: 47.2 × 47.2 mm)
Reflector Mounting Bracket
IAC-L2
Connector Cable
(one-side connector)
IAC-L3
42
Straight Type
SA9Z-CM8K-4S
25
ø9.6
10
4.5
➂ White
➃ Brown
32
6
30
35
25
Note: Dielectric strength when installed
on the switch
Between live part and mounting bracket:
1000V AC (except between live part
and clamping ring)
113
1.6
6 8
74
60
37
44
10
16
4-ø4.4
2-ø3.4
8-M3 × 0.5 holes
20
Material: SPCC (zinc plating)
Right-angle Type
SA9Z-CM8K-4L
➀ Black
➁ Blue
16 5
➂
Brown
28
70
ø5.2
Cable length: 2 or 5 m
ø9.6
5.5
11
28
19
➀ Black
➁ Blue
2
ø5.2
58
Cable length: 2 or 5 m
Material: SPCC (zinc chromate plating, black)
Note: Dielectric strength when installed
on the switch
Between live part and mounting bracket:
1000V AC (except between live part
and clamping ring)
Q
Sensors
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USA: (800) 262-IDEC or (408) 747-0550, Canada: (888) 317-IDEC
Q-33
Sensors
General Information
General Information
Specifications
Extraneous Light
Do not operate a sensor under any conditions exceeding these specifications.
Bright, extraneous light such as sunlight, incandescent lights, or fluorescent
lights may impair the performance of sensors in detecting color or light.
Do not operate a sensor under current and voltage conditions other than
those for which the individual sensor is rated.
3. SA6A ultrasonic sensors are not affected by extraneous light.
Do not exceed the recommended operating temperature and humidity.
Although sensors are rated for operation below 0°C, this specification does
not imply that performance characteristics will remain constant under prolonged freezing conditions. Continued exposure and the accompanying frost,
ice, dew, and condensation which accumulate on the optical surface will
adversely affect sensor performance.
Make sure that extraneous light does not exceed recommended levels found
in the individual specifications sections. When 500 lux is specified, this is
equal to 50 footcandles. The average factory illumination is ordinarily below
this level, except in areas where visual inspection is being performed. Only in
such brightly lit areas is incident light of particular concern.
To maintain superior performance characteristics, do not exceed vibration and
shock resistance ratings while operating a sensor. In addition, avoid isolated
impacts to the sensor housing which are severe enough to adversely affect
the waterproof characteristics.
Unwanted light interference can often be avoided simply by making sure that
the optical receiver is not aimed directly toward a strong light source. When
mounting direction cannot be adjusted, place a light barrier between all
nearby light sources and the receiver.
Reflected-Light Sensors
IEC (International Electrotechnical Commission) Ratings
When installing sensors which detect reflected light, make sure that
unwanted light reflections from nearby surfaces, such as the floor, walls,
reflective machinery, or stainless steel, do not reach the optical receiver.
Sensors rated IP67 are resistant to moisture when occasionally immersed in
still water. Sensors rated IP64 through IP66 are resistant to moisture when
occasionally subjected to splashing or when located in the vicinity of turbulent waters. These ratings do not imply that a sensor is intended for use
under continual high-pressure water spray. Avoid such applications to maintain optimal sensor performance.
Also, make sure that reflected-light sensors mounted in close proximity do not
cause interfering reflections. When it is not possible to maintain the recommended clearance between sensors, as noted in the individual installation
sections, provide light barriers between sensors.
Sensors rated IP64 through IP67 are dust-tight and water-tight. For best performance, avoid using any sensor in an area where it will be subjected to
heavy particle blasts and where dust, water, or steam will accumulate on the
optical surface.
Through-Beam Sensors
A slit attachment is available to modify the beam size of through-beam sensors. This option is recommended for detecting very small objects (near the
size of the smallest object which a sensor can detect) or for eliminating light
interference when sensors are mounted in close proximity.
Laser Sensors
Start-up
Do not test the housing for dielectric strength and insulation resistance, since
the housing is connected to the electronic circuit ground of a sensor. Do not
perform dielectric strength and insulation resistance tests on electrical systems without disconnecting photoelectric sensors, as such testing may result
in damage to the sensor.
IMPORTANT: Always consider safety when installing a laser sensor of any kind.
Make sure that the laser beam cannot inadvertently shine into the eyes of people
passing by or working in the vicinity. See safety information on page Q-20.
Mounting
Several lines of sensors, as noted in the individual operation sections, are
provided with an internal circuit to turn an output off for a specified amount of
time upon power-up. This delay is normal; it prevents a transient state when
turning power on.
The mounting bracket and hardware are included with sensors, where applicable. Use the appropriate hardware for mounting, along with washers and
spring washers or lock nuts. Do not overtighten attachment hardware. Overtightening causes damage to the housing and will adversely affect the waterproof characteristics of the sensor.
Optimum Performance
Best results can be obtained when the sensor is mounted so that the object
sensed is in the center of the beam, rather than when the object is located
near the edges of the sensing window. In addition, the most reliable sensing
occurs when the majority of the objects being sensed are well within the
sensing range, rather than at the extreme near and far limits.
The optical surface of each sensor must be cleaned on a regular basis for continual superior performance. Use a soft cloth dipped in isopropyl alcohol to
remove dust and moisture build-up.
IMPORTANT: Do not use organic solvents (such as thinner, ammonia, caustic
soda, or benzene) to clean any part of a sensor.
Q
1.
2.
Sensors
All sensors experience signal inconsistencies under the influence of inductive
noise. Do not use sensors in close proximity to transformers, large inductive
motors, or generators. Avoid using sensors in direct contact with sources of
excessive heat. Also avoid operation in close proximity to welding equipment.
Even though the SA6A ultrasonic sensor features protection against noise, there may be adverse effects from strong noise.
It is strongly recommended to avoid using any sensor where it will be continually subjected to elements which impair performance or cause corrosive damage to the sensor. In particular, avoid strong vibrations and shocks, corrosive gases, oils, and chemicals, as well as blasts of water, steam, dust, or other particles.
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USA: (800) 262-IDEC or (408) 747-0550, Canada: (888) 317-IDEC
Q-55
Sensors
General Information
Wiring
Glossary
Avoid running high-voltages or power lines in the same conduit with sensor
signal lines. This prevents inaccurate results or damage from induced noise.
Use a separate conduit when the influence of power lines or electromagnetic
equipment may occur, particularly when the distance of the wiring is extended.
Attenuation: Reduction of beam intensity as a result of environmental factors such as dust, humidity, steam, etc.
IMPORTANT: Connect the sensor cables and wires as noted in the individual
Wiring sections. Failure to connect as shown in wiring diagrams will result in
damage to the internal circuit.
When extending sensor cables and wires, make sure to use cables equal or
superior to that recommended in the individual specifications sections.
When wiring terminals, be sure to prevent contact between adjoining terminals. When using ring or fork lug terminals, use the insulated sleeve style
only. Each sensor terminal can accept only one ring of fork lug terminal.
On ISF series photoelectric sensors, use recommended cable, along with the
attached packing gland and washer, when wiring the terminals. This ensures
waterproof and dustproof characteristics.
Power Supply
Noise resistance characteristics are improved when a sensor is grounded to
the 0V power terminal. If the 0V power terminal is not at ground potential, use
a ceramic 0.01µF capacitor which can withstand 250V AC minimum.
When using a switching power supply, be sure to ground the FG terminal to
eliminate high-frequency noise. The power supply should include an insulating transformer, not an autotransformer.
On ISF series photoelectric sensors, the power supply should be sized according to the voltage drop through the lead wire when using a long extension for
the DC type (328' or 100m maximum extension).
Dark on: Output energized when light is not detected by the receiving element. For through-beam sensors, light from the projector is not detected by
the receiver when an object is present. For reflected light sensors, light is
not detected when it is not reflected from an object surface.
Diffuse-reflected light sensors: Sensors that detect all scattered,
reflected light. Light reflected from nearby surfaces, as well as intended
object surface, is detected. Diffuse-reflected light sensors are often called
“proximity switches,” since they switch when any object is near. Also use
to detect color contrast when colors reflect light intensity differently (green
LED recommended for this application).
EEPROM: Acronym which stands for electronically erasable, programmable, read only memory.
Excess gain: Ratio of optical power available at a given projector-toreceiver range divided by the minimum optical power required to trigger
the receiver.
Extraneous light: Incident light received by a sensor, irrelated to the presence or absence of object being detected. Extraneous light is usually
unwanted background light such as sunlight and incandescent lamps in
close proximity.
∆E: The measurement of color difference as a three-variable function,
located on an XYZ axis of light, hue, and chroma values.
Hysteresis: Operating point and release point at different levels. For solid
state sensors, this is accomplished electrically. For mechanical switches, it
results from storing potential energy before the transition occurs.
Power Supply
Light on: Output energized when light is detected by receiving element.
For through-beam sensors, light from the projector is detected by the
receiver when an object is not present. For reflected light sensors, light is
detected when it is reflected from an object surface.
The compact PS5R-A power supply is the perfect companion item for most
IDEC sensors. This power supply is only 1.77" (45mm) wide, 3.15" (80mm) tall,
and 2.76" (70mm) deep. Call an IDEC representative for more details.
Linearity: Measurement of how nearly linear, that is, how accurate actual
analog output is, with respect to distance.
Part Number
Output Ratings
PS5R-A12
12V DC, 0.62A
PS5R-A24
24V DC, 0.32A
NPN/PNP: Types of open collector transistors. NPN is a sink transistor;
output on establishes negative potential difference. PNP is a source transistor; output on establishes positive potential difference.
Polarizing: Filtering out all reflected light except that which is projected in
one plane only. Polarized retro-reflected light sensors detect the light from
corner-cube type reflectors when an object is not present.
Reflected-light sensors: Sensors with the projector and receiver in one
housing. Light is projected by the light source, and reflected light is
received by the optical surface. Includes diffuse-reflected, retro-reflected,
limited-reflected, and spot-reflected sensors.
Miscellaneous
Repeatability: Ability of a sensor to reproduce output readings consistently when the same value is applied consecutively, in the same direction,
for a specified number of cycles, or for a specified time duration.
Strong magnetic fields may detract from the accuracy of the sensing measurement. Avoid mounting a sensor directly to machinery, since the housing is connected to the electronic circuit ground of the sensor. If it is necessary to mount
a sensor on machinery, use the insulating plate and sleeve provided.
Resolution: Overall dimension of the smallest object which can be
detected (when sensing the presence of an object) or smallest increment of
distance which can be distinguished with reliable results (when sensing
the position of an object).
Response time: Time elapsed between input and output. Total response
time is the sum of object detection, amplifier response, and output
response times.
Retro-reflective scan: This type of reflected light sensor uses a special
reflector to return projected light when an object is not present. Sensor
detects the presence of an object when the light is reflected differently.
Q
Sensors
Through-beam sensors: Sensors with a separate projector and receiver.
The light source from the projector is detected by the receiver, except when
an object is present.
Transient: Undesirable surge of current (many times larger than normal
current) for a very short period, such as during the start-up of an inductive
motor.
Q-56
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