SA1U
Photoelectric Switches
Through-Beam
(Projector)
Diffuse-Reflective
Background
Suppression
Maximum
Sensing Range
Polarized
Retroreflective
Through-Beam
(Receiver)
Long sensing range of 50m maximum (through-be
Universal voltage and DC power types available fo
Through
Beam
Background
Suppression
Suitable for detecting
the object.
The background
is not detected.
50m
The longest sensing
range in the industry
Maximum sensing range:
2m maximum
Ideal for use in large
facilities such as
automatic parking lots.
50m
50m maximum
Object
Operation status can be
easily recognized by LEDs
Maximum sensing range:
2m
Object
IP67 Waterproof Protection
Recognizable from different
directions. The front side is
visible from a distance.
Sensitivity of through-beam
types can easily be
adjusted.
Stable LED
*Power LED for through-beam type
Status LED
2
Note: IP67 protection degree is acheived when an applicable cable is used.
SA1U
eam type)
or worldwide usage
Terminal
Block Type
Photoelectric Switches
Universal Voltage Power Supply
Universal voltage types operate on 24 to 240V AC and
12 to 240V DC. DC power types operate on 12 to 24V DC.
Polarized
Retroreflective
Washdown IP67 Environment
Ideal for use in a wet enviroment such as bottling and food
processing lines.
Easily detects objects
that absorb light and
mirror surface objects
Reflector
Maximum sensing range:
7m
7m maximum
Object
Four Sensing Methods
Through-beam
Long distance detection. Offers sensing range of up to 50m.
Background suppresion
Sensing range up to 2m. Not affected by background.
Polarized-retroreflective
Sensing range up to 7m. Easily detects mirrored surfaces.
Diffuse-reflective
Sensing range up to 1m. Detects objects that reflect light,
even transparent objects.
Diffuse
Reflective
Close Mounting (except through-beam)
Interference prevention enables close mounting
of two SA1U photoelectric switches in limited spaces.
Time Delay
Four operation modes to choose from: one shot, ON delay,
OFF delay, and normal modes.
Time ranges can be set from 0.1 to 5 seconds.
Detects objects that reflect light,
even transparent objects.
Maximum sensing range:
1m
1m maximum
Various Mounting Hole Layouts
Mounting hole centers are selectable from 40, 50 to 55 mm.
IDEC’s original spring-up screw
terminal block saves wiring time
Object
Spring-Up Screw Terminal Block
IDEC’s unique spring-up screw
terminal block∗ is used.
∗The screw is normally in the lifted position,
ready for wiring. No need to loosen or
remove screws, improving work
efficiency. Screws are held
captive.
Adhesive Vertical Slit for
Through Beam Type (Optional)
Suitable for interference prevention,
enabling close mounting of through
beam type photoelectric switches,
and for detecting small objects.
Available in slit widths of 1 mm and
3 mm. Attaching 3-mm wide slits to
both the projector and receiver
restricts the sensing range by 50%.
(sensing distance: 15m)
Can be easily attached even after
installing the SA1U.
3
SA1U Photoelectric Switches
Wide variations such as universal voltage and DC power types, available with time
delay. Maximum sensing range of 50m (through-beam).
•Universal voltage types operate on 24 to 240V AC and 12
to 240V DC. DC power types operate on 12 to 24V DC.
•Washable IP67
•Four sensing methods: through-beam, polarized retroreflective, diffuse-reflective, and background suppression.
•Adjustable time delay: 0.1 to 5 seconds
•Mounting hole centers: 40, 50 to 55 mm
•Operation and stable LED indicators.
•SPDT contact for relay output type.
•Transistor output type has NPN and PNP open collector
dual outputs.
•Interference prevention allows two units to be mounted in
close proximity (except through-beam model).
•Spring-up terminal block structure enables easy wiring.
Wiring can be extended to up to 100m using ø8 to ø10
mm round cables.
ModelPackage Quantity: 1
Sensing Method
Detectable
Object
Sensing
Range
Though-Beam
Opaque
50m max.
Polarized Retroreflective
Opaque
Mirror
surface
7m max.
Diffuse-Reflective
Opaque
Transparent
1m max.
Background Suppression
Opaque
2m max.
Power Voltage
Control Output
24 to 240V AC
(50/60Hz)
12 to 240V DC
Relay contact SPDT
250V AC/3A, 30V DC/3A
(resistive load)
12 to 24V DC
NPN/PNP open collector
24 to 240V AC
(50/60Hz)
12 to 240V DC
Relay contact SPDT
250V AC/3A, 30V DC/3A
(resistive load)
12 to 24V DC
NPN/PNP open collector
24 to 240V AC
(50/60Hz)
12 to 240V DC
Relay contact SPDT
250V AC/3A, 30V DC/3A
(resistive load)
12 to 24V DC
NPN/PNP open collector
24 to 240V AC
(50/60Hz)
12 to 240V DC
Relay contact SPDT
250V AC/3A, 30V DC/3A
(resistive load)
12 to 24V DC
NPN/PNP open collector
Attachments
Time Delay
Functions
Without
•Sensitivity control
screwdriver
With
•Mounting bracket
•Gland, gland washer Without
•Gland gaskets*
•Sensitivity control
screwdriver
•Reflector (IAC-R5)
•Mounting bracket
•Gland, gland washer
•Gland gaskets*
Part No.
(Ordering Part No.)
SA1U-T50M
SA1U-T50MT
SA1U-T50MW
With
SA1U-T50MWT
Without
SA1U-P07M
With
SA1U-P07MT
Without
SA1U-P07MW
With
SA1U-P07MWT
Without
SA1U-D01M
•Sensitivity control
screwdriver
With
•Mounting bracket
Without
G
land,
gland
washer
•
•Gland gaskets*
SA1U-D01MT
SA1U-D01MW
With
SA1U-D01MWT
Without
SA1U-B02M
•Sensitivity control
screwdriver
With
•Mounting bracket
•Gland, gland washer Without
•Gland gaskets*
With
SA1U-B02MT
SA1U-B02MW
SA1U-B02MWT
*Two different-size gland gaskets are supplied. Select according to the cable diameter.
Small hole gasket: cable diameter ø8 to ø9 mm
Large hole gasket: cable diameter ø9 to ø10 mm
Accessories
Item
Reflector
Reflector
Mounting
Bracket
Standard
Small
Large
Narrow (rear/side mounting)
Narrow (rear mounting)
Narrow (side mounting)
Tape (40 × 35 mm)
Tape (80 × 70 mm)
For IAC-R5
For IAC-R6
For IAC-R8
Part No.
(Ordering Part No.)
IAC-R5
IAC-R6
IAC-R8
IAC-R7M
IAC-R7B
IAC-R7S
IAC-RS1
IAC-RS2
IAC-L2
IAC-L3
IAC-L5
Package
Quantity
1
1
1
1
1
1
1
1
1
1
1
•The IAC-L2 is not supplied with reflector mounting screws (M4) and nuts.
•The IAC-L3 is supplied with two mounting screws (M3 × 8 mm sems).
4
Item
Vertical
Slit
Slit Size
Part No.
(mm)
1.0 × 22 SA9Z-S15
3.0 × 22 SA9Z-S16
Ordering Part No.
SA9Z-S15PN02
SA9Z-S16PN02
Package
Quantity
2
2
SA1U Photoelectric Switches
Specifications
Universal Voltage Model
Sensing Method
Through-Beam
Polarized Retroreflective
SA1U-P07M
SA1U-P07MT
Diffuse-Reflective
Part No.
SA1U-T50M
SA1U-T50MT
SA1U-D01M
SA1U-D01MT
Power Voltage
24 to 240V AC (21.6 to 264V AC) 50/60Hz, 12 to 240V DC (10.8 to 264V DC) compatible
Power Consumption
Projector: 3 VA maximum
Receiver: 3 VA maximum
Control Output
Relay contact SPDT, switching capacity: 250V AC/3A (resistive load), 30V DC/3A (resistive load)
Electrical life (minimum operations): 100,000 (NO contact), 50,000 (NC contact)
Mechanical life (minimum operations): 50,000,000
Background Suppression
SA1U-B02M
SA1U-B02MT
3 VA maximum
Minimum Applicable Load 5V DC, 10 mA minimum (reference value)
Response Time
20 ms maximum
Insulation Resistance
Between power and output terminals: 20 MΩ minimum (500V DC megger)
Dielectric Strength
Between power and output terminals: 1500V AC, 1 minute, Between output terminals: 750V AC, 1 minute
Weight (approx.)
Projector: 115g, Receiver: 130g
130g
DC Power Model
Sensing Method
Through-Beam
Polarized Retroreflective
Part No.
SA1U-T50MW
SA1U-T50MWT
Power Voltage
12 to 24V DC (10 to 30V DC) ripple rate 10% p-p maximum
Current Draw
Projector: 20 mA maximum
Receiver: 25 mA maximum
Control
Output
SA1U-P07MW
SA1U-P07MWT
Diffuse-Reflective
SA1U-D01MW
SA1U-D01MWT
Background Suppression
SA1U-B02MW
SA1U-B02MWT
30 mA maximum
Type
NPN, PNP open collector (dual output)
Load Current
NPN: 100 mA maximum, PNP: 100 mA maximum
Applied Voltage
30V DC maximum
Voltage Drop
NPN: 2.4V maximum, PNP: 2.4V maximum
Response Time
1 ms maximum
Insulation Resistance
Between live and dead parts: 20 MΩ minimum (500V DC megger)
Dielectric Strength
Between live and dead parts: 1000V AC, 1 minute
Weight (approx.)
Projector: 105g, Receiver: 110g
110g
Common Specifications
Sensing Method
Sensing Distance
Through-Beam
50m maximum
Polarized Retroreflective
0.2 to 7m (when using supplied reflector IAC-R5)
Preset Distance
Detectable Object
Diffuse-Reflective
1m maximum (200 × 200 mm
white mat paper)
0.4 to 2m (200 × 200 mm
white mat paper)
—
Opaque
Hysteresis
Opaque/Mirror surface
—
—
Operation Mode
Light ON or Dark ON (mode selector)
LED Indicator
[Projector] Power LED: Green
[Receiver] Operation LED:Yellow
Stable LED: Green
Operation LED: Yellow
Green
Stable LED:
Red LED (660 nm)
Opaque/Transparent
Opaque
20% of sensing distance max.
15% of sensing distance max.
Operation LED: Yellow
Light Emitting Element
Infrared LED (870 nm)
Sensitivity Adjustment
1-turn control knob
Extraneous Light
Immunity
Sunlight: 10,000 lux maximum, Incandescent lamp: 5,000 lux maximum
Vibration Resistance
Damage limits: 10 to 55 Hz, amplitude 1.5 mm, 30 minutes in each axis
Shock Resistance
Damage limits: 500 m/s2, 3 shocks each in 6 axes 3 consecutive times
Operating Temperature
−25 to +60ºC (no freezing), storage temperature: −40 to +70ºC
Operating Humidity
35 to 85% RH (no condensation), storage humidity: 35 to 85% RH
Connection Method
Infrared LED (870 nm)
Terminal block with M3 spring-up screws
8-turn control knob
Applicable Cable
Outside diameter ø8 to ø10 mm (core 0.3 to 0.75 mm2)
Cable Extension
Extendable up to 100m with a cabtyre cable of 0.3 mm2 minimum
Housing Material
PBT (indicator cover: PC)
Lens Material
PC/PET
Degree of Protection
IP67 (IEC/EN60529)
Background Suppression
0.2 to 2m (200 × 200 mm
white mat paper)
PMMA
PC/PET
Time Delay Specifications
Sensing Method
Through-Beam
Polarized Retroreflective
SA1U-P07MT
SA1U-P07MWT
Diffuse-Reflective
SA1U-D01MT
SA1U-D01MWT
Background Suppression
Part No.
SA1U-T50MT
SA1U-T50MWT
SA1U-B02MT
SA1U-B02MWT
Time Range
0.1 to 5.0 sec (adjusted with the 1-turn control knob)
Time Delay Function
One shot, ON delay, OFF delay, and normal (no delay limit operation) modes
Temperature Effect of
Time Delay
±10% maximum of the time delay for 20ºC temperature rise within the operating temperature range
Repetitive Accuracy of
Time Delay
±1.0% maximum of the time delay for repetitive inputs at 10 seconds or more
5
SA1U Photoelectric Switches
Descriptions
Part Names
Output Circuit / Connection Diagram
SA1U-T50M∗
SA1U-P07M∗
SA1U-D01M∗
[Univervsal Voltage Type]
[DC Power Type]
All models except though-beam projector
All models except though-beam projector
Terminal No.
Sensitivity Control (Note 2)
Mode Selector (Light ON / Dark ON) ∗2
Main circuit
Operation LED (yellow) (Note 2)
Universal
voltage
power supply
circuit
1
2
1
Power supply
24 to 240V AC (50/60Hz)
or
12 to 240V DC
Load
Main circuit
5
NC
COM
NO
4
Relay contact
output (SPDT)
PNP
OUT
3
NPN
OUT
4
2
Operation LED (yellow)
Sensing Range Control
Universal voltage
power supply circuit
Though-beam projector
Main circuit
Without Time Delay
Internal Circuit
SA1U-B02M∗
+
12 to 24V DC
–
Load
3
Stable LED (green) (Note 1)
Terminal No.
+V
0V
External Connection
Though-beam projector
Terminal No.
1
2
Power supply
24 to 240V AC (50/60Hz)
or
12 to 240V DC
1
2
Internal Circuit
Terminal Arrangement
External Connection
5
4
3
+
12 to 24V DC
–
Main circuit
Mode Selector (Light ON / Dark ON)
*Terminal  is not available on DC power types.
2
1
Operation Chart
Incident
Dark ON
Light ON
Interruption
*1: Power LED for through-beam projector
*2: Not available on through-beam projector
Part Names
Control
Output
ON
OFF
Operation
LED
ON
OFF
Control
Output
ON
OFF
Operation
LED
ON
OFF
Output Circuit / Connection Diagram
See the “Output Circuit / Connection Diagram” diagram above.
SA1U-T50M∗T
SA1U-P07M∗T
SA1U-D01M∗T
Terminal Arrangement
See the “Terminal Arrangement” diagram above.
Operation LED (yellow) ∗2
Timer Control ∗2
Operation Chart
Sensitivity Control ∗2
Light ON
Mode Selector ∗2
(Light ON / Dark ON, time delay mode)
Stable LED (green) ∗1
SA1U-B02M∗T
0
Normal
1
One shot
2
OFF delay
Operation LED (yellow)
Timer Control
Sensing Range Control
*1: Power LED for through-beam projector
*2: Not available on through-beam projector
6
Light ON
3
4
Normal
5
One shot
6
ON delay
Mode Selector
(Light ON / Dark ON, time delay mode)
Mode
Selector Incident
Position Interruption
OFF delay
ON delay
Dark ON
With Time Delay
Operation Mode
7
ON
ON
ON
OFF
ON
OFF
ON
OFF
T
T
T
T
T
T
T
ON
OFF
ON
OFF
ON
OFF
ON
9
T
OFF
8
Normal
T
OFF
OFF
T
T
T
T
T
SA1U Photoelectric Switches
Dimensions
Photoelectric Switch
90
85
67.5
1
30
10
5
40
10.5 10
Polarized-reflective,
Diffuse-reflective: receiver
Through-beam: projector/receiver
25
22
40
50
55
5.5
Diffuse-reflective: projector
Polarized-reflective: projector
Background supression: projector
7
Mounting Bracket
52
27
1.2
When the Mounting Bracket is Attached
27
Polarized-reflective,
Diffuse-reflective: receiver
14.5
70
Through-beam: projector/receiver
55
15
6 R3
6
14.5
27
11
14.5
28.5
29
34
39
49
Diffuse-reflective: projector
Polarized-reflective: projector
Background supression: projector
15
2
R3
76.5
76
7.5
0.5
Reflector
IAC-R8
IAC-R6
IAC-RS1
51.2
35
8.3
40
30.4
4
(21)
42.3
34.3
72
60
51.2
35.3
61
2-ø4.3
IAC-R5
M3 tapping
screw hole
(ø2.6, depth 7.7)
• Effective reflecting area: 8.6 × 29.5
• Effective reflecting area: 8.6 × 29.5
• The mounting plate for reflector must be 0.8 to 2.5 mm. • The mounting plate for reflector must be 0.8 to 2.5 mm.
8
IAC-RS2
70
12.4
M3 tapping
screw hole
(ø2.6, depth 8.6)
12.4
3.0
• Effective reflecting area: 8.6 × 29.5
• The mounting plate for reflector
must be 0.8 to 2.5 mm.
80
33.3
11.5
M3 tapping
screw hole
(ø2.6, depth 7.7)
12.4
IAC-R7S (side mounting)
Positioning
projection
(ø3.0, height 1.0)
(thickness 0.5)
2−ø4.5
25.4
12.4
30
40
(Effective reflecting area: 47 × 47)
IAC-R7B (rear mounting)
3.0
2- 7.3
2-M3 tapping
screw hole
(ø2.6, depth 8.6)
(Effective reflecting area: 30 × 31)
Positioning
Projection
(ø3.0, height 1.0)
25.4
12.4
33.3
12.4
3.3
2- 7.3
IAC-R7M (rear/side mounting)
2-ø3.6
33.3
(Effective reflecting area: 47.2 × 47.2)
25
11.5
3
9
2- 7.3
51
(thickness 0.5)
All dimensions in mm.
7
SA1U Photoelectric Switches
Dimensions
Reflector Mounting Bracket
Slit
IAC-L2 (for IAC-R5)
IAC-L3 (for IAC-R6)
IAC-L5 (for IAC-R8)
SA9Z-S15, SA9Z-S16
42
22.2
28
19
A
40
74
60
37
10
11
11
2-ø3.4
50
40
35
25
(2)
15
7 18
Part No.
20
26
(28)
(3)
Material: SPCC
Material: SPCC
Dimension (A)
61
35
1.6
12
20
8-M3 × 0.5 holes
2
58
44
6 8 10 16
70
16
113
4.5
(3)
10
4-ø4.4
4.5
22.0
25
40.2
5.5
6
30
A
SA9Z-S15
1.0
SA9Z-S16
3.0
8-M4 × 0.7 holes
Material: SPCC
Material
PC (t=0.3)
All dimensions in mm.
Characteristics (Typical)
Through-Beam Model SA1U-T50M*
•Lateral Displacement
(when using transparency 2.8% ND filter)
Lateral Displacement Y (mm)
Excess Gain
100
10
Operation
Level 1
0
10 20 30 40 50 60 70 80 90 100 110 120 130 140 150
2000
40
1500
30
1000
500
Y
0
X
-500
-1000
-1500
-2000
0
10
20
30
0
-10
θ
-20
50
60
70
80
90
100
-40
X
0
10
20
30
40
50
60
70
80
90
100
Sensing Distance X (m)
600
Lateral Displacement Y (mm)
Excess Gain
10
•Lateral Displacement
(when using 1.0-mm wide vertical slit)
10
Receiver
Projector/
Receiver
400
Projector/
Receiver
0
-200
5
10
15
20
25
Y
-400
-600
0
Receiver
200
30
X
0
5
10
•Excess Gain
(when using 3.0-mm wide vertical slit)
20
25
30
•Lateral Displacement
(when using 3.0-mm wide vertical slit)
Lateral Displacement Y (mm)
100
10
800
600
Receiver
400
200
Projector/
Receiver
0
-200
Receiver
Projector/
Receiver
15
Sensing Distance X (mm)
Sensing Distance (m)
Excess Gain
40
Sensing Distance X (mm)
100
Operation
Level 1
20
-30
Sensing Distance (m)
•Excess Gain
(when using 1.0-mm wide vertical slit)
•Angle
Receiver Angle θ (º)
•Excess Gain
(when using transparency 1% ND filter)
Y
X
-400
-600
Operation
Level 1
0
5
10
15
20
25
30
35
Sensing Distance (m)
40
45
50
-800
0
5
10
15
20
25
30
35
40
45
50
Sensing Distance X (mm)
Sensing Range and Minimum Detectable Object Size When Using Slits
Slit
Sensing Range (m)
Minimum Detectable Object
Size (mm)
Part No.
Slit
Width
Slit attached on
either projector or
receiver
Slits attached on
both projector
and receiver
Slit attached on
either projector or
receiver
Slits attached on
both projector
and receiver
SA9Z-S15
1 mm
20
5
1
1
SA9Z-S16
3 mm
40
15
3
3
8
The slit can be easlily attached to the front surface.
Slit
Note 1: Wipe the lens surface before
sticking the slit on the lens
surface.
Note 2: The slit cannot be used once
it is peeled off because the
adhesive power is lost.
SA1U Photoelectric Switches
Polarized Retroreflective Model SA1U-P07M*
•Lateral Displacement
140
120
100
80
60
40
20
0
-20
-40
-60
-80
-100
-120
-140
10
IAC-RS2
IAC-R5
IAC-R7
IAC-R6
IAC-R8
IAC-RS1
Operation
Level 1
0
1
2
3
4
5
6
7
8
Sensing Distance (m)
9
10
60
IAC-R8
IAC-R5
Lateral Displacement Y (mm)
Excess Gain
100
•Angle
IAC-R7
IAC-RS2
40
IAC-R6
Reflector Angle θ (º)
•Excess Gain
IAC-RS2
IAC-RS1
Y
X
1
2
3
4
5
6
7
Sensing Distance X (mm)
8
9
IAC-R5
IAC-RS1
0
IAC-R7
IAC-R6
-20
θ
-40
-60
0
IAC-R8
20
10
X
2
0
4
6
Sensing Distance X (m)
8
10
Diffuse-Reflective Model SA1U-D01M*
•Excess Gain
•Lateral Displacement
10
0
200
400
600
2200
25
Sensing Distance X (mm)
Lateral Displacement Y (mm)
Excess Gain
100
Operation
Level 1
•Object Size vs. Sensing Distance
35
15
5
-5
-15
Y
-25
800 1000 1200 1400 1600 1800 2000 2200
Sensing Distance (mm)
-35
Object:
200 x 200 mm
White mat paper
X
0
200
400
600
2000
1800
1600
A
1400
X
Object: A mm
white mat paper
1200
1000
800 1000 1200 1400 1600 1800 2000 2200
Sensing Distance X (mm)
0
20
40
60
80 100 120 140
Side Length A (mm)
160
180
200
Characteristics (Typical)
Background Suppression Model SA1U-B02M*
• Lateral Displacement (preset 2m)
White paper
5
3000
Black
Paper
1500
1000
500
0
0 200 400 600 800 1000 1200 1400 1600 1800 2000 2200
Sensing Distance (mm)
0
0
1
2
3
4
5
Control Knob (turns)
6
7
8
600
400
200
0
2000
1800
1600
1400
1200
1000
800
600
400
200
0
Veneer
3500
800
Stainless Steel
Gray
Paper
Comparison of sensing distance when set to detect white mat paper (200) at 1m
Veneer
10
4000
2000
2500
1000
Brass
Gray paper
2000
•Color Mat Paper and Other Materials
White
Paper
2500
1000
1500
Sensing Distance (mm)
Brass
15
500
Stainless Steel
20
Sensing Distance (mm)
Hysteresis (%)
Black paper
0
Aluminum
5000
4500
25
0
200 400 600 800 1000 1200 1400 1600 1800 2000 2200
Sensing Distance X (mm)
•Control Knob vs. Sensing Distance
30
20
Cardboard
• Sensing Distance vs. Hysteresis
-100
0
Aluminum
1000
Cardboard
800
40
Gray
400
600
Sensing Distance X (mm)
Object: 200 × 200 mm mat paper
∗Use white mat paper for sensing distance
setting
X
Black
200
-80
Gray
0
-60
60
Black
-80
Object: 200 × 200 mm mat paper
∗ Use white mat paper for sensing distance setting
X
Y
80
Green
-60
-40
100
Blue
Y
-20
Sensing Distance (mm)
-40
0
120
Green
-20
20
140
Blue
White
paper
0
40
Sensing Distance (mm)
20
60
White
paper
Red
Black
paper
40
160
Black
paper
White
80
White
60
• Light Beam Diameter
Red
100
Light Beam Diameter (mm)
80
Lateral Displacement Y (mm)
Lateral Displacement Y (mm)
• Lateral Displacement (preset 1m)
Comparison of sensing distance when set to detect white mat paper (200) at 2m
Instructions
Installation
Make sure that there are no gaps between the cover and the housing as shown in the diagram below.
No Gap
Housing Mounting
Screw (2 pcs)
•Screw Tightening Torque
Screw
Terminal screw
Gland
Cover set screw
Housing mounting screw
Cover Set Screw
Terminal Screw
(5 pcs max.)
To maintain waterproof characteristics, tighten the screws within
the range of the recommended tightening torque.
Excessive tightening may cause damage.
Recommended Tightening Torque (N·m)
0.6 to 1.0
4.0 to 6.0
0.5 to 0.8
0.8 to 1.2
Gland
9
SA1U Photoelectric Switches
Instructions
Notes
Wiring
•When installing photoelectric switches, take into consideration
the reflecting light from the floor or walls as it may affect sensing
of through-beam and background suppression models.
•Make sure to prevent sunlight, fluorescent light, and fluorescent
light of inverters from entering the receiver of the photoelectric
switch directly. Keep the through-beam model receiver away from
intense extraneous light.
•When installing SA1U photoelectric switches, do not tighten the
mounting screws excessively or hit the switch with a hammer,
otherwise the protection degree cannot be maintained.
•Make sure that the supply voltage is within the rated values.
•When using a switching regulator, be sure to ground the FG (frame
ground) terminal.
•To suppress a transient state at start-up, a circuit to turn off the
output is installed (universal voltage type: 50 ms, DC power type:
100 ms). The timer will start after resetting the off output.
•To meet European Union Low Voltage Directives, install an EN
approved fuse on the outside of the power terminal or output terminal of the universal voltage type SA1U photoelectric switches.
•Attach the cover properly to maintain waterproof characteristics.
•Interference prevention allows two SA1U photoelectric switches
to be mounted in close proximity. However, the through-beam
model is not equipped with interference prevention. Maintain
appropriate distance between the switches referring to the lateral
displacement characteristics on page 8.
•Optional slits (SA9Z-S15, SA9Z-S16) for through-beam models
are available for inteference prevention and to detect small objects. When using the slits, take the following into consideration:
1)Wipe the lens surface of the switch with a soft dry cloth before
sticking the adhesive tape side of the slit to the lens surface.
2)When attaching the slit, align the ends of the slit with the ends
of the lens correctly.
3)The slit cannot be reused once it is peeled off because the
adhesive power is lost.
4)Wipe off water drops as water on the slit will change detection
characteristcs.
•When mounting the reflector, do not tighten the mounting screws
excessively, otherwise the screw hole of the reflector may be
damaged.
•Use M4 mounting screws for the IAC-R5 and IAC-R8 reflectors
and M3 mounting screws for the IAC-R6 reflector. Tighten the
mounting screws to a tightening torque of 0.5 N·m maximum.
•Use the M3 self-tapping screw, flat washer, and spring washer to
tighten the IAC-R7 reflector to a torque of 0.5 to 0.6 N·m. While
optional reflector mounting bracket IAC-L2 is not supplied with
mounting screws or nuts, the IAC-L3 and IAC-L5 are supplied
with mounting screws for mounting the reflector on the bracket.
•IAC-RS1 and IAC-RS2 reflectors can be installed directly on a flat
surface using the adhesive tape attached to the back of the reflector. Before attaching the reflector, clean the surface to ensure
secure attachment.
•Polycarbonate or acrylic resins are used for optical elements. Do
not use ammonia or caustic soda for cleaning, otherwise optical
elements will dissolve. To remove dust and moisture build-up, use
soft dry cloth.
•Do not install the SA1U photoelectric switches in areas where the
switches are subject to water, oil, and chemicals.
•Connecting Cables
•Installing the Background Suppression (BGS) Model
Approx.10 mm
Correct
➄
Gland gasket
(2 types supplied. Choose according
to cable diameter)
Gland washer
➂
➃
➄
➀
➁
Recommended insulation length (A)
Terminal No.
Length “A” (mm)
➀
➁
➂
➃
➄
45
30
55
40
25
•Connect the cables to the correct terminal number. Connect the
lower terminal screws first.
•Attach the cover and secure with the set screw.
*To maintain waterproof and dustproof characteristics, use cabtyre cables (do not use soft cables as it may fall out) with ø8 to
ø10 mm diameter. Install the attached gland gasket and washer
and tighten the gland securely. For the small gland gasket, use
a cable with ø8 to ø10 mm diameter. For the large gland gasket, use a cable with ø9 to ø10 mm diameter. The cable sheath
should be 10 mm approx. Make sure that the gland washer fits in
the groove of the gasket.
•When wiring, make sure that the power is turned off.
•Incorrect wiring may cause damage to the internal circuit.
•Avoid parallel wiring with high-voltage or power lines (especially
inverters) in the same conduit, otherwise noise may cause malfunction and damage.
•When wiring is long or may be affected by power lines, use a
separate conduit for wiring.
•Use a cable of 0.3 mm2 minimum core wires. The cable can be
extended up to 100m. For DC power types, voltage drop due to
resistance of the cable lead wire should be taken into consideration.
•When using crimp terminals, make sure that the terminals do not
come into contact with adjacent terminals. For correct installation,
see the figure below.
Correct
Incorrect
•Dimension of Applicable Crimping Terminals
Dimensions in mm.
Spade Terminal
Ring Terminal
ø3.2 min.
ø3.2 min.
Incorrect
6.0 max.
Object
➂
➃
6.0 max.
Object
Object
➀
➁
Gland
ø8 to 10 mm
Install the sensor head as shown below to minimize sensing errors.
Correct
A
6.0 max.
6.0 max.
5.2 min.
5.2 min.
3.3 max.
11.0 max.
5.0 max.
11.0 max.
•When using insulation for ring terminals, use an insulating sheath.
•Install the insulation sheath to the crimp part before wiring.
•Only one crimp terminal can be connected per terminal.
10
SA1U Photoelectric Switches
Instructions
Indicator and Output Operation
•Sensitivity is set to the maximum at the factory before shipment.
When adjusting the sensitivity, use the screwdriver supplied with
the SA1U photoelectric switch to turn the control as shown below,
to a torque of 0.03 N·m maximum.
Step
Photoelectric
Switch Status
1
Receiving light
•Through-beam,
polarized reflective:
No object detected
•Diffuse reflective:
Object detected
L-ON
SENS.
D-ON
Operation LED (yellow)
Stable LED (green)
The operation LED turns on (yellow) when the control output is on.
The stable LED turns on (green) either at stable incident or stable
interruption. Make sure to use the SA1U photoelectric switch after
the stable LED is on.
See the table below.
Light
Receiving
Status
Stable
Incident
Unstable
Incident
Unstable
Interruption
Stable
Interruption
Operation LED (yellow)/
Control Output
Stable
LED
(green)
Light ON
Dark ON
ON
OFF
2
Sensitivity
Control
A
min.
Light is interrupted
•Through-beam,
polarized reflective: Object
detected
•Diffuse reflective:
No object detected
max.
A
B
min.
max.
ON
A
—
B
min.
OFF
Set the middle point between point A
and B as point C.
max.
Adjustment of Sensing Range for
Background Suppression
Optical Axis Alignment (Light ON)
When adjusting the sensing range, follow the instruction below.
(1) Through-Beam Model
Fasten the receiver temporarily. Place the projector facing the
receiver. Move the projector up, down, right and left to find the
range where the operation LED turns on. Fasten the projector in
the middle of the range. Next, move the receiver up, down, right,
and left in the same manner and fasten in the middle of the range
where the operation LED turns on. Make sure that stable LED turns
on at stable incident and stable interruption.
2
3
Step
Distance Control
A
B
DIST.
2
Adjusting Procedure
Install the photoelectric switch and the object firmly.
Turn the control counterclockwise until the operation
LED turns off (turns on with dark ON type). From this
point, turn the control clockwise until the operation
LED turns on (turns off with dark ON type) (point A).
DIST.
1
A
Projector
Remove the object, and confirm that the operation
LED turns off (turns on with dark ON type). Turn the
control clockwise until the operation LED turns on
(detecting the background) (turns off with dark ON
type) (point B). (Note 1)
B
Up & down
Left & right
DIST.
A
3
Receiver
(2) Polarized Retroreflective Model
Install the reflector perpendicularly to the optical axis. Move
the SA1U photoelectric switch up, down, right, and left to find
the range where the operation LED turns on. Fasten the switch
in the middle of the range. Polarized retroreflective model can
be installed also by finding the position where the reflection of
projected red light is most intense, while observing the reflection
on the reflector from behind the switch. Make sure that stable LED
turns on at stable incident and stable interruption.
(3) Diffuse-Reflective Model
Place the SA1U photoelectric switch where the switch can detect
an object. Move the switch up, down, right, and left to find the
range where the operation LED tuns on. Fasten the switch in the
middle of the range. Make sure that stable LED turns on at stable
incident and stable interruption.
Sensitivity Adjustment
C
Note 1:When the background distance is too far and not detected,
turn the control 360°, and set the point as point C.
Note 2:Because the control is multi-turn, it may take more than
one turn to move from point A to point B.
Operation LED (yellow)
Distance Control (Note 3)
D-ON
Fasten temporarily
Set the middle point between point A and B
as point C. (Note 2)
L-ON
Up & down
DIST.
Left & right
At interruption status, turn the
control clockwise from point A, until
the operation LED turns on (turns off
with dark ON type) (point B).
If the operation LED does not turn
on (turn off with dark ON type) even
though the control has reached the
maximum, set the maximum position
as point B.
ON
ON
1
Turn the control counterclockwise
to the minimum. Then turn clockwise
until the operation LED turns on (turns
off with dark ON type) (point A).
C
3
OFF
Adjusting Procedure
Note 3: Turning the control clockwise lengthens the sensing
distance.
Note 4: Background suppression (BGS) model is not provided with
a stable LED.
(except Background Supression Model)
•Referring to the table below, adjust the sensitivity of the SA1U
photoelectric switch when necessary, such as when the throughbeam model is used to detect small or translucent objects or the
reflective model is affected by background. The table explains the
status of operation LED when the operation mode is set to light
ON.
•After adjusting the sensitivity, make sure that stable LED turns on
at stable incident and stable interruption.
11
SA1E Miniature Photoelectric Switches (Built-in Amplifier Model)
Simple, small, and worldwide standard
•Six sensing methods
•Cable model (three cable lengths) and M8 connector model are available.
•NPN output, PNP output, light ON, and dark ON can be selected.
•Background suppression (BGS) model detects objects only, ignoring the background.
•Red LED model available for easy alignment in long distance applications
(through-beam, polarized retroreflective, small-beam reflective, BGS)
•Convergent reflective model is ideal for detecting objects at a short distance with a background.
•Also available without sensitivity adjustment (through-beam and polarized retroreflective)
•Air blower mounting block for installing an air blower to clean the lens surface, ideal to
maintain a clean lens surface and sensor performance.
•UL listed, CE marked
Sensing Method
Sensing Range
Through-Beam
Part No.
•NPN output
SA1E-TN*
•PNP output
SA1E-TP*
15m
(SA1E-T∗NA)
Polarized Retroreflective
3.0m [100 mm]
•NPN output
SA1E-PN*
•PNP output
SA1E-PP*
700 mm
•NPN output
SA1E-DN*
•PNP output
SA1E-DP*
(when IAC-R5/R8 is used)
Diffuse-Reflective
•NPN output
SA1E-NN*
•PNP output
SA1E-NP*
50 to 150 mm
Small-beam Reflective
•NPN output
SA1E-BN*
•PNP output
SA1E-BP*
20 to 200 mm
Background Suppression
Adjustable sensing range
40 to 200 mm
•NPN output
SA1E-GN*
•PNP output
SA1E-GP*
5 to 35 mm
Convergent Reflective
Safety Precautions
Turn off power to the SA1U photoelectric switches before installation, removal, wiring, maintenance, and inspection. Failure to turn power
off may cause electrical shock or fire hazard.
Specifications and other descriptions in this brochure are subject to change without notice.
6-64, Nishi-Miyahara 2-Chome, Yodogawa-ku, Osaka 532-0004, Japan
Tel: +81-6-6398-2527, Fax: +81-6-6398-2547
E-mail: marketing@idec.co.jp
IDEC CORPORATION (USA)
Heselstruecken 8, 22453 Hamburg, Germany
Tel: +49-40-25 30 54 - 0, Fax: +49-40-25 30 54 - 24
E-mail: service@eu.idec.com
IDEC CANADA LIMITED
Room 701-702 Chong Hing Finance Center,
No. 288 Nanjing Road West, Shanghai 200003, PRC
Tel: +86-21-6135-1515
Fax: +86-21-6135-6225 / +86-21-6135-6226
E-mail: idecS@cn.idec.com
3155 Pepper Mill Court, Unit 4
Mississauga, Ontario, L5L 4X7, Canada
Tel: +1-905-890-8561, Toll Free: (888) 317-IDEC (4332)
Fax: +1-905-890-8562
E-mail: sales@ca.idec.com
IDEC AUSTRALIA PTY. LTD.
Unit 17, 104 Ferntree Gully Road,
Oakleigh, Victoria 3166, Australia
Tel: +61-3-8523-5900, Toll Free: 1800-68-4332
Fax: +61-3-8523-5999
E-mail: sales@au.idec.com
www.idec.com
IDEC ELEKTROTECHNIK GmbH
1175 Elko Drive, Sunnyvale, CA 94089-2209, USA
Tel: +1-408-747-0550 / (800) 262-IDEC (4332)
Fax: +1-408-744-9055 / (800) 635-6246
E-mail: opencontact@idec.com
IDEC IZUMI (H.K.) CO., LTD.
IDEC (SHANGHAI) CORPORATION
Unit G & H, 26/F., MG Tower, No. 133 Hoi Bun Road,
Kwun Tong, Kowloon, Hong Kong
Tel: +852-2803-8989, Fax: +852-2565-0171
E-mail: info@hk.idec.com
IDEC TAIWAN CORPORATION
8F-1, No. 79, Hsin Tai Wu Road, Sec. 1,
Hsi-Chih District, 22101 New Taipei City, Taiwan
Tel: +886-2-2698-3929, Fax: +886-2-2698-3931
E-mail: service@tw.idec.com
IDEC IZUMI ASIA PTE. LTD.
IDEC (BEIJING) CORPORATION
No. 31, Tannery Lane #05-01,
HB Centre 2, Singapore 347788
Tel: +65-6746-1155, Fax: +65-6844-5995
E-mail: info@sg.idec.com
IDEC (SHENZHEN) CORPORATION
20th Fl., Sorachai Bldg., No.23/78,
Soi Sukhumvit 63, Sukhumvit Rd.,
Klongton-nua, Wattana, Bangkok 10110
Tel: +662-392-9765, Fax: +662-392-9768
E-mail: sales@th.idec.com
Room 211B, Tower B, The Grand Pacific Building,
8A Guanghua Road, Chaoyang District,
Beijing 100026, PRC
Tel: +86-10-6581-6131, Fax: +86-10-6581-5119
IDEC ASIA (THAILAND) CO.,LTD.
Unit AB-3B2, Tian Xiang Building, Tian’an Cyber Park,
Fu Tian District, Shenzhen, Guang Dong 518040, PRC
Tel: +86-755-8356-2977, Fax: +86-755-8356-2944
Cat. No. EP1206-1US MARCH 2016 PDF