IDEC SA1U Series User manual

SA1U
Photoelectric Switches
Background
Suppression
Diffuse-Reective Polarized
Retroreective Through-Beam
(Receiver)
Through-Beam
(Projector)
Maximum
Sensing Rang
e
Maximum
Sensing Rang
e

Long sensing range of 50m maximum (through-beam type)
Universal voltage and DC power types available for worldwide usage SA1U Terminal
Block Type
Photoelectric Switches
IDEC’s original spring-up screw
terminal block saves wiring time
Washdown IP67 Environment
Four Sensing Methods
Time Delay
Various Mounting Hole Layouts
Universal Voltage Power Supply
Ideal for use in a wet enviroment such as bottling and food
processing lines.
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.
Universal voltage types operate on 24 to 240V AC and
12 to 240V DC. DC power types operate on 12 to 24V DC.
Mounting hole centers are selectable from 40, 50 to 55 mm.
Long distance detection. Offers sensing range of up to 50m.
Sensing range up to 2m. Not affected by background.
Sensing range up to 7m. Easily detects mirrored surfaces.
Sensing range up to 1m. Detects objects that reflect light,
even transparent objects.
Background suppresion
Polarized-retroreflective
Spring-up screw terminal block
enables easy wiring. Save up to
65% wiring time compared
to competitor products
(IDEC research).
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.
Spring-Up Screw Terminal Block
IP67 Waterproof Protection Easy Wiring
Operation status can be
easily recognized by LEDs
Recognizable from different
directions. The front side is
visible from a distance.
Sensitivity of through-beam
types can easily be
adjusted.
Close Mounting (except through-beam)
Interference prevention enables close mounting
of two SA1U photoelectric switches in limited spaces.
Diffuse-reflective
Through-beam
Suitable for detecting
the object.
The background
is not detected.
Ideal for use in large
facilities such as
automatic parking lots.
Polarized
Retroreflective
Through
Beam
Background
Suppression
Diffuse
Reflective
Easily detects objects
that absorb light and
mirror surface objects
Detects objects that reflect light,
even transparent objects.
Maximum sensing range: 50m
Maximum sensing range: 2m
Maximum sensing range: 1m
Maximum sensing range: 7m
50m
The longest sensing
range in the industry
50m maximum 1m maximum
7m maximum
2m maximum
Object
Object
Object
Object
Reflector
2
Stable LED
*Power LED for through-beam type
Status LED
Note: IP67 protection degree is acheived when an applicable cable is used.

Long sensing range of 50m maximum (through-beam type)
Universal voltage and DC power types available for worldwide usage SA1U Terminal
Block Type
Photoelectric Switches
IDEC’s original spring-up screw
terminal block saves wiring time
Washdown IP67 Environment
Four Sensing Methods
Time Delay
Various Mounting Hole Layouts
Universal Voltage Power Supply
Ideal for use in a wet enviroment such as bottling and food
processing lines.
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.
Universal voltage types operate on 24 to 240V AC and
12 to 240V DC. DC power types operate on 12 to 24V DC.
Mounting hole centers are selectable from 40, 50 to 55 mm.
Long distance detection. Offers sensing range of up to 50m.
Sensing range up to 2m. Not affected by background.
Sensing range up to 7m. Easily detects mirrored surfaces.
Sensing range up to 1m. Detects objects that reflect light,
even transparent objects.
Background suppresion
Polarized-retroreflective
Spring-up screw terminal block
enables easy wiring. Save up to
65% wiring time compared
to competitor products
(IDEC research).
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.
Spring-Up Screw Terminal Block
IP67 Waterproof Protection Easy Wiring
Operation status can be
easily recognized by LEDs
Recognizable from different
directions. The front side is
visible from a distance.
Sensitivity of through-beam
types can easily be
adjusted.
Close Mounting (except through-beam)
Interference prevention enables close mounting
of two SA1U photoelectric switches in limited spaces.
Diffuse-reflective
Through-beam
Suitable for detecting
the object.
The background
is not detected.
Ideal for use in large
facilities such as
automatic parking lots.
Polarized
Retroreflective
Through
Beam
Background
Suppression
Diffuse
Reflective
Easily detects objects
that absorb light and
mirror surface objects
Detects objects that reflect light,
even transparent objects.
Maximum sensing range: 50m
Maximum sensing range: 2m
Maximum sensing range: 1m
Maximum sensing range: 7m
50m
The longest sensing
range in the industry
50m maximum 1m maximum
7m maximum
2m maximum
Object
Object
Object
Object
Reflector
3

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 retro-
reective, diffuse-reective, 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 type).
Spring-up terminal block structure enables easy wiring. •
Wiring can be extended to up to 100m using ø8 to ø10 mm
round cables.
Types Package Quantity: 1
Sensing Method Detectable
Object
Sensing
Range Power Voltage Control Output Attachments Time Delay Functions
Type No.
(Ordering Type No.)
Though-Beam
Opaque 50m max.
24 to 240V AC
(50/60Hz)
12 to 240V DC
Relay contact SPDT
250V AC/3A, 30V DC/3A
(resistive load)
Sensitivity control
•
screwdriver
Mounting bracket
•
Gland, gland washer
•
Gland gaskets
•*
Without SA1U-T50M
With SA1U-T50MT
12 to 24V DC NPN/PNP open collector
Without SA1U-T50MW
With SA1U-T50MWT
Polarized Retroreective
Opaque
Mirror
surface
7m max.
24 to 240V AC
(50/60Hz)
12 to 240V DC
Relay contact SPDT
250V AC/3A, 30V DC/3A
(resistive load)
Sensitivity control
•
screwdriver
Reflector (IAC-R5)
•
Mounting bracket
•
Gland, gland washer
•
Gland gaskets
•*
Without SA1U-P07M
With SA1U-P07MT
12 to 24V DC NPN/PNP open collector
Without SA1U-P07MW
With SA1U-P07MWT
Diffuse-Reective
Opaque
Transparent 1m max.
24 to 240V AC
(50/60Hz)
12 to 240V DC
Relay contact SPDT
250V AC/3A, 30V DC/3A
(resistive load)
Sensitivity control
•
screwdriver
Mounting bracket
•
Gland, gland washer
•
Gland gaskets
•*
Without SA1U-D01M
With SA1U-D01MT
12 to 24V DC NPN/PNP open collector
Without SA1U-D01MW
With SA1U-D01MWT
Background Suppression
Opaque 2m max.
24 to 240V AC
(50/60Hz)
12 to 240V DC
Relay contact SPDT
250V AC/3A, 30V DC/3A
(resistive load)
Sensitivity control
•
screwdriver
Mounting bracket
•
Gland, gland washer
•
Gland gaskets
•*
Without SA1U-B02M
With SA1U-B02MT
12 to 24V DC NPN/PNP open collector
Without SA1U-B02MW
With 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 Type No. (Ordering Type No.) Package Quantity
Reector
Standard IAC-R5 1
Small IAC-R6 1
Large IAC-R8 1
Narrow (rear/side mounting) IAC-R7M 1
Narrow (rear mounting) IAC-R7B 1
Narrow (side mounting) IAC-R7S 1
Tape (40 × 35 mm) IAC-RS1 1
Tape (80 × 70 mm) IAC-RS2 1
Reector Mounting Bracket
For IAC-R5 IAC-L2 1
For IAC-R6 IAC-L3 1
For IAC-R8 IAC-L5 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).
SA1U Photoelectric Switches
(DC power types UL pending)
4

5
SA1U Photoelectric Switches
Types Package Quantity: 1
Sensing Method Detectable
Object
Sensing
Range Power Voltage Control Output Attachments Time Delay Functions
Type No.
(Ordering Type No.)
Though-Beam
Opaque 50m max.
24 to 240V AC
(50/60Hz)
12 to 240V DC
Relay contact SPDT
250V AC/3A, 30V DC/3A
(resistive load)
Sensitivity control
•
screwdriver
Mounting bracket
•
Gland, gland washer
•
Gland gaskets
•*
Without SA1U-T50M
With SA1U-T50MT
12 to 24V DC NPN/PNP open collector
Without SA1U-T50MW
With SA1U-T50MWT
Polarized Retroreective
Opaque
Mirror
surface
7m max.
24 to 240V AC
(50/60Hz)
12 to 240V DC
Relay contact SPDT
250V AC/3A, 30V DC/3A
(resistive load)
Sensitivity control
•
screwdriver
Reflector (IAC-R5)
•
Mounting bracket
•
Gland, gland washer
•
Gland gaskets
•*
Without SA1U-P07M
With SA1U-P07MT
12 to 24V DC NPN/PNP open collector
Without SA1U-P07MW
With SA1U-P07MWT
Diffuse-Reective
Opaque
Transparent 1m max.
24 to 240V AC
(50/60Hz)
12 to 240V DC
Relay contact SPDT
250V AC/3A, 30V DC/3A
(resistive load)
Sensitivity control
•
screwdriver
Mounting bracket
•
Gland, gland washer
•
Gland gaskets
•*
Without SA1U-D01M
With SA1U-D01MT
12 to 24V DC NPN/PNP open collector
Without SA1U-D01MW
With SA1U-D01MWT
Background Suppression
Opaque 2m max.
24 to 240V AC
(50/60Hz)
12 to 240V DC
Relay contact SPDT
250V AC/3A, 30V DC/3A
(resistive load)
Sensitivity control
•
screwdriver
Mounting bracket
•
Gland, gland washer
•
Gland gaskets
•*
Without SA1U-B02M
With SA1U-B02MT
12 to 24V DC NPN/PNP open collector
Without SA1U-B02MW
With 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
Specications
•Universal Voltage Type
Sensing Method Through-Beam Polarized Retroreective Diffuse-Reective Background Suppression
Type No. SA1U-T50M
SA1U-T50MT
SA1U-P07M
SA1U-P07MT
SA1U-D01M
SA1U-D01MT
SA1U-B02M
SA1U-B02MT
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 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
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 Type
Sensing Method Through-Beam Polarized Retroreective Diffuse-Reective Background Suppression
Type No. SA1U-T50MW
SA1U-T50MWT
SA1U-P07MW
SA1U-P07MWT
SA1U-D01MW
SA1U-D01MWT
SA1U-B02MW
SA1U-B02MWT
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 30 mA maximum
Control
Outpu
t
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 Specications
Sensing Method Through-Beam Polarized Retroreective Diffuse-Reective Background Suppression
Sensing Distance 50m maximum 0.2 to 7m (when using
supplied
reector IAC-R5)
1m maximum (200 × 200 mm
white mat paper)
0.2 to 2m (200 × 200 mm
white mat paper)
Preset Distance — 0.4 to 2m (200 × 200 mm
white mat paper)
Detectable Object Opaque Opaque/Mirror surface Opaque/Transparent Opaque
Hysteresis — — 20% of sensing distance max. 15% of sensing distance max.
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
Stable LED: Green Operation LED: Yellow
Light Emitting Element Infrared LED (870 nm) Red LED (660 nm) Infrared LED (870 nm)
Sensitivity Adjustment 1-turn control knob 8-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 +60℃ (no freezing), storage temperature: −40 to +70℃
Operating Humidity 35 to 85% RH (no condensation), storage humidity: 35 to 85% RH
Connection Method Terminal block with M3 spring-up screws
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 PMMA PC/PET
Degree of Protection IP67 (IEC/EN60529)
•Time Delay Specications
Sensing Method Through-Beam Polarized Retroreective Diffuse-Reective Background Suppression
Type No. SA1U-T50MT
SA1U-T50MWT
SA1U-P07MT
SA1U-P07MWT
SA1U-D01MT
SA1U-D01MWT
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

6
SA1U Photoelectric Switches
Universal
voltage
power supply
circuit
NO
COM
NC
Power supply
24 to 240V AC (50/60Hz)
or
12 to 240V DC
Power supply
24 to 240V AC (50/60Hz)
or
12 to 240V DC
Relay contact
output (SPDT)
Main circuit
Main circuit
PNP
+V
+
–
+
–
OUT
NPN
0V
12 to 24V DC
OUT
Te rminal No.
Te rminal No.
Te rminal No.
Load
Load
External Connection
External Connection
Internal Circuit
Internal Circuit
1
2
1
5
4
3
2
1
1
3
4
2
2
All models except though-beam projector
[Univervsal Voltage Type] [DC Power Type]
All models except though-beam projector
Though-beam projectorThough-beam projector
Main circuit
Main circuit
12 to 24V DC
Universal voltage power supply circuit
Descriptions
•Part Names
•Output Circuit / Connection Diagram •Part Names
•Operation Chart
•Output Circuit / Connection Diagram
See the “Output Circuit / Connection Diagram” diagram above.
•Terminal Arrangement
See the “Terminal Arrangement” diagram above.
•Operation Chart
Mode Selector (Light ON / Dark ON)
Operation LED (yellow) (Note 2)
Operation LED (yellow)
Stable LED (green) (Note 1)
Sensitivity Control (Note 2)
Sensing Range Control
Mode Selector (Light ON / Dark ON) ∗2
SA1U-T50M∗
SA1U-P07M∗
SA1U-D01M∗
SA1U-B02M∗
Timer Control ∗2
SA1U-T50M∗T
SA1U-P07M∗T
SA1U-D01M∗T
SA1U-B02M∗T
Operation LED (yellow)
Timer Control
Sensitivity Control ∗2
Mode Selector
(Light ON / Dark ON, time delay mode)
Mode Selector ∗2
(Light ON / Dark ON, time delay mode)
Sensing Range Control
Operation LED (yellow) ∗2
Stable LED (green) ∗1
Control
Output
Control
Output
Operation
LED
Operation
LED
Light ON
Dark ON
Incident
Interruption
ON
OFF
ON
OFF
ON
OFF
ON
OFF
OFF delay
Normal
One shot
ON delay
OFF delay
Normal
One shot
ON delay
Normal
0
1
2
3
4
5
6
7
8
9
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
Operation Mode
Mode
Selector
Position
T T
T T
T T T
T T
T T T
T T
Light ON Light ONDark ON
Incident
Interruption
•Terminal Arrangement
3
2
1
45
Without Time Delay
With Time Delay
*1: Power LED for through-beam projector
*2: Not available on through-beam projector
*1: Power LED for through-beam projector
*2: Not available on through-beam projector
*Terminal ➄ not available on DC power types.

7
SA1U Photoelectric Switches
9025
40
30
67.5
5.5
1010.5
10
5
22
Polarized-reflective,
Diffuse-reflective: receiver
Polarized-reflective: projector
Background supression: projector
Diffuse-reflective: projector
Through-beam: projector/receiver
1
85
40
50
55
7
Dimensions
•Photoelectric Switch
0.5
52 27
1.2
76.5
76
14.5
28.5
29
34
39
49
Polarized-reflective,
Diffuse-reflective: receiver
Through-beam: projector/receiver
Diffuse-reflective: projector
Polarized-reflective: projector
Background supression: projector
70
55
27
27
14.5
14.5
6
11
7.5
R3
15
6
R3
15
2
•When the Mounting Bracket is Attached •Mounting Bracket
•Reector
2-ø3.6 3.3
8.3
35.3
34.3
42.3
25
4 (21)
IAC-R6
2-ø4.3
(Effective reflecting area: 47.2 × 47.2) (Effective reflecting area: 47 × 47)
(Effective reflecting area: 30 × 31)
51
72
60
3
9
IAC-R5
35
40
IAC-RS1
(thickness 0.5)
61
8
IAC-R8
2−ø4.5
30
40
30.4
51.2
51.2
IAC-R7M (rear/side mounting)
Positioning
Projection
(ø3.0, height 1.0)
• Effective reflecting area: 8.6 × 29.5
• The mounting plate for reflector must be 0.8 to 2.5 mm.
• Effective reflecting area: 8.6 × 29.5
• The mounting plate for reflector must be 0.8 to 2.5 mm.
• Effective reflecting area: 8.6 × 29.5
• The mounting plate for reflector
must be 0.8 to 2.5 mm.
Positioning
projection
(ø3.0, height 1.0)
2-M3 tapping
screw hole
(ø2.6, depth 8.6)
M3 tapping
screw hole
(ø2.6, depth 7.7)
M3 tapping
screw hole
(ø2.6, depth 7.7)
M3 tapping
screw hole
(ø2.6, depth 8.6)
7.32-
3.0
12.4
33.3
25.4
12.4
11.5
IAC-R7B (rear mounting)
7.32-
12.4
33.3
12.4
11.5
IAC-R7S (side mounting)
7.32-
3.0
12.4
33.3
25.4
12.4
IAC-RS2
70
80
(thickness 0.5)
All dimensions in mm.

8
SA1U Photoelectric Switches
IAC-L2 (for IAC-R5)
4-ø4.4
2-ø3.4
42
5.5 19
6
28
58
70
37 60 74
30
113
2
Material: SPCC
IAC-L3 (for IAC-R6)
25 4.5
11
10
44
20
1.6
8-M3 × 0.5 holes
35
25
161086
Material: SPCC 8-M4 × 0.7 holes
1615187
40
50
26
12 35
(28)
(3)
40
11
4.5
(3)
10
61
20
(2)
IAC-L5 (for IAC-R8)
Material: SPCC
Characteristics (Typical)
Lateral Displacement
•
(transparency 2.8% ND filter is used)
Lateral Displacement
•
Excess Gain
•
Angle
•
Angle
•
Excess Gain
•
Lateral Displacement
•Object Size vs. Sensing Distance •
•Through-Beam Type SA1U-T50M*
•Polarized Retroreective Type SA1U-P07M*
•Diffuse-Reective Type SA1U-D01M*
•Reector Mounting Bracket
Dimensions
Excess Gain
•
(transparency 1% ND filter is used)
1
10
100
0102030405060708090 100 110 120 130 140 150
Sensing Distance (m)
Operation
Level
Excess Gain
-2000
-1500
-1000
-500
0
500
1000
1500
2000
010 20 30 40 50 60 70 80 90 100
X
Y
Lateral Displacement Y (mm)
Sensing Distance X (mm)
-40
-30
-20
-10
0
10
20
30
40
0102030405060708090100
Sensing Distance X (m)
X
θ
Receiver Angle θ (º)
IAC-R7 IAC-R6 IAC-R8
IAC-RS1
IAC-RS2 IAC-R5
10
100
012345678910
1
Excess Gain
Operation
Level
Sensing Distance (m)
-140
-120
-100
-80
-60
-40
-20
0
20
40
60
80
100
120
140
012345678910
IAC-R5
IAC-R6
IAC-R7
IAC-RS1
IAC-RS2
IAC-R8
Lateral Displacement Y (mm)
Sensing Distance X (mm)
X
Y
-60
-40
-20
0
0
20
40
60
246810
IAC-R5
IAC-R6
IAC-R7
IAC-RS2
IAC-RS1
X
θ
IAC-R8
Reflector Angle θ (º)
Sensing Distance X (m)
-15
-5
5
15
25
35
800 1000 1200 1400 1600 1800 2000 2200
X
Y
Sensing Distance X (mm)
Lateral Displacement Y (mm)
Object:
200 x 200 mm
White mat paper
600
-35 0 200 400
-25
1000
1200
1400
1600
1800
2000
2200
020406080 100 120140 160 180 200
X
A
Object: A mm
white mat paper
Side Length A (mm)
Sensing Distance X (mm)
1
10
100
0200 400 600 800 1000 1200 1400 1600 1800 2000 2200
Excess Gain
Operation
Level
Sensing Distance (mm)

9
SA1U Photoelectric Switches
Control Knob vs. Sensing Distance •Sensing Distance vs. Hysteresis
•
Light Beam Diameter
•
•Background Suppression Type SA1U-B02M*
Lateral Displacement (preset 1m)
•Lateral Displacement • (preset 2m)
Color Mat Paper and Other Materials•
Characteristics (Typical)
Installation
Make sure that there are no gaps between the cover and the hous-
ing as shown in the diagram below.
To maintain waterproof characteristics, tighten the screws within
the range of the recommended tightening torque.
Excessive tightening may cause damage.
Screw Tightening Torque•
Screw Recommended Tightening Torque (N·m)
Terminal screw
Gland
Cover set screw
Housing mounting screw
0.6 to 1.0
4.0 to 6.0
0.5 to 0.8
0.8 to 1.2
Notes
When installing photoelectric switches, take into consideration the•
reecting light from the oor or walls as it may affect sensing of
through-beam and background suppression types.
Make sure to prevent sunlight, uorescent light, and uorescent •
light of inverters from entering the receiver of the photoelectric
switch directly. Keep the through-beam type 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 ap-•
proved 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 type
is not equipped with interference prevention. Maintain appropriate
distance between the switches referring to the lateral displacement
characteristics on page 8.
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.
When mounting the reector, do not tighten the mounting screws •
excessively, otherwise the screw hole of the reector may be dam-
aged.
Use M4 mounting screws for the IAC-R5 and IAC-R8 reectors and •
M3 mounting screws for the IAC-R6 reector. Tighten the mounting
screws to a tightening torque of 0.5 N·m maximum.
Use the M3 self-tapping screw, at washer, and spring washer to •
tighten the IAC-R7 reector to a torque of 0.5 to 0.6 N·m. While
optional reector 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 reector on the bracket.
IAC-RS1 and IAC-RS2 reectors can be installed directly on a •
at surface using the adhesive tape attached to the back of the
reector. Before attaching the reector, clean the surface to ensure
secure attachment.
Instructions
-80
-60
-40
-20
0
20
40
60
80
0200 400600 800 1000
Sensing Distance X (mm)
X
Y
White
paper
Black
paper
Lateral Displacement Y (mm)
Object: 200 × 200 mm mat paper
∗Use white mat paper for sensing distance setting
-100
-80
-60
-40
-20
0
20
40
60
80
100
0200 400600 800
1000
Sensing Distance X (mm)
Lateral Displacement Y (mm)
Black
paper White
paper
1400 1600 1800 2000 2200
X
Y
Object: 200 × 200 mm mat paper
∗Use white mat paper for sensing distance
setting
1200
0
20
40
60
80
100
120
140
160
0500 1000 1500 2000 2500
Sensing Distance (mm)
Light Beam Diameter (mm)
0
5
10
15
20
25
30
0200 400 600 800 1000 1200 1400 1600 1800 2000 2200
Sensing Distance (mm)
Hysteresis (%)
Black paper
Gray paper
White paper
0
500
1000
1500
2000
2500
3000
3500
4000
4500
5000
012345678
Control Knob (turns)
Sensing Distance (mm)
White
Paper
Gray
Paper
Black
Paper
0
200
400
600
800
1000
Comparison of sensing distance when set to detect white mat paper ( 200) at 1m
Comparison of sensing distance when set to detect white mat paper ( 200) at 2m
Sensing Distance (mm)
Sensing Distance (mm)
0
200
400
600
800
1000
1200
1400
1600
1800
2000
White
Red
Green
Green
Blue
Gray
Black
Cardboard
Aluminum
Stainless Steel
Brass
Veneer
White
Red
Blue
Gray
Black
Cardboard
Aluminum
Stainless Steel
Brass
Veneer
No Gap
Cover Set Screw
Terminal Screw
(5 pcs max.)
Housing Mounting
Screw (2 pcs)
Gland

10
SA1U Photoelectric Switches
•Installing the Background Suppression (BGS) Type
Install the sensor head as shown below to minimize sensing er-
rors.
Object
CorrectCorrect Incorrect
Object
Object
Wiring
•Connecting Cables
Recommended insulation length (A)
Terminal No.
Length “A” (mm)
➀
45
➁
30
➂
55
➃
40
➄
25
Gland
Gland washer Gland gasket
(2 types supplied. Choose according
to cable diameter)
ø8 to 10 mm
Approx.10 mm
➀
➀
➁
➁
➂
➂
➃
➃
➄
➄
A
Connect the cables to the correct terminal number. Connect the •
lower terminal screws rst.
Attach the cover and secure with the set screw.•
*To maintain waterproof and dustproof characteristics, use cab-
tyre 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 gas-
ket, use a cable with ø9 to ø10 mm diameter. The cable sheath
should be 10 mm approx. Make sure that the gland washer ts 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 mal-
function 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 mm• 2 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 consider-
ation.
When using crimp terminals, make sure that the terminals do not•
come into contact with adjacent terminals. For correct installation,
see the gure below.
IncorrectCorrect
•Dimension of Applicable Crimping Terminals
Dimensions in mm.
Ring Terminal Spade Terminal
ø3.2 min.
6.0 max. 6.0 max.
5.2 min.
11.0 max.
3.3 max.
ø3.2 min.
6.0 max. 6.0 max.
5.2 min.
11.0 max.
5.0 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.•
Indicator and Output Operation
SENS.
L-ON 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
LED
(green)
Operation LED (yellow)/
Control Output
Light ON Dark ON
Stable
Incident ON
ON OFF
Unstable
Incident OFF
Unstable
Interruption OFF ON
Stable
Interruption ON
Instructions

11
SA1U Photoelectric Switches
Optical Axis Alignment (Light ON)
(1) Through-Beam Type
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.
123
Fasten temporarily
Up & down
Left & right
Projector
Receiver
Up & down
Left & right
(2) Polarized Retroreflective Type
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 type 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 Type
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
(except Background Supression Type)
Referring to the table below, adjust the sensitivity of the SA1U •
photoelectric switch when necessary, such as when the through-
beam type is used to detect small or translucent objects or the
reective type 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.
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
Sensitivity
Control Adjusting Procedure
1
Receiving light
Through-beam,
•
polarized reflective:
No object detected
Diffuse reective:•
Object detected
A
min. max.
Turn the control counterclockwise
to the minimum. Then turn clockwise
until the operation LED turns on (turns
off with dark ON type) (point A).
2
Light is interrupted
Through-beam,
•
polarized reflec-
tive: Object detect-
ed
Diffuse reflective:
•
No object detected
A
B
min. max.
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.
3—
A
C
B
min. max.
Set the middle point between point A
and B as point C.
Adjustment of Sensing Range for
Background Suppression
When adjusting the sensing range, follow the instruction below.
Step Distance Control Adjusting Procedure
1
A
DIST.
Install the photoelectric switch and the object rmly.
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).
2
DIST.
A
B
Remove the object, and conrm 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)
3
DIST.
A
C
B
Set the middle point between point A and B
as point C. (Note 2)
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.
DIST.
L-ON D-ON
Operation LED (yellow)
Distance Control (Note 3)
Note 3: Turning the control clockwise lengthens the sensing
distance.
Note 4: Background suppression (BGS) type is not provided with a
stable LED.
Instructions

Six sensing methods•
Cable type (three cable lengths) and M8 connector type are available.•
NPN output, PNP output, light ON, and dark ON can be selected.•
Background suppression (BGS) type detects objects only, ignoring the background.•
Red LED type available for easy alignment in long distance applications •
(through-beam, polarized retroreective, small-beam reective, BGS)
Convergent reective type is ideal for detecting objects at a short distance with a back-•
ground.
Also available without sensitivity adjustment (through-beam and polarized retroreective)•
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•
Simple, small, and worldwide standard
SA1E Miniature Photoelectric Switches (Built-in Amplier Type)
Sensing Method Sensing Range Type No.
Through-Beam
15m
(SA1E-T∗NA)
NPN output
•
SA1E-TN*
PNP output
•
SA1E-TP*
Polarized Retroreective
3.0m [100 mm]
(when IAC-R5/R8 is used)
NPN output
•
SA1E-PN*
PNP output
•
SA1E-PP*
Diffuse-Reective
700 mm
NPN output
•
SA1E-DN*
PNP output
•
SA1E-DP*
Small-beam Reective
50 to 150 mm
NPN output
•
SA1E-NN*
PNP output
•
SA1E-NP*
Background Suppression
20 to 200 mm
40 to 200 mm
Adjustable sensing range
NPN output
•
SA1E-BN*
PNP output
•
SA1E-BP*
Convergent Reective
5 to 35 mm
NPN output
•
SA1E-GN*
PNP output
•
SA1E-GP*
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 re hazard.
IDEC CORPORATION (USA)
1175 Elko Drive, Sunnyvale, CA 94089-2209, USA
Tel: [phone] / (800) 262-IDEC (4332)
Fax: [phone]
E-mail: [email protected]
IDEC CANADA LIMITED
3155 Pepper Mill Court, Unit 4, Mississauga,
Ontario, L5L 4X7, Canada
Tel: [phone], Toll Free: [phone]
Fax: [phone]
E-mail: [email protected]
IDEC AUSTRALIA PTY. LTD.
2/3 Macro Court, Rowville, Victoria 3178, Australia
Tel: [phone], Toll Free: 1800-68-4332
Fax: [phone]
E-mail: [email protected]
IDEC ELECTRONICS LIMITED
Unit 2, Beechwood, Chineham Business Park,
Basingstoke, Hampshire RG24 8WA, UK
Tel: [phone], Fax: [phone]
E-mail: [email protected]m
7-31, Nishi-Miyahara 1-Chome, Yodogawa-ku, Osaka 532-8550, Japan
Tel: [phone], Fax: [phone]
E-mail: [email protected]
Specifications and other descriptions in this catalog are subject to change without notice.
Cat. No. EP1206-0 MAY 2008 PDF
IDEC ELEKTROTECHNIK GmbH
Wendenstrasse 331, 20537 Hamburg, Germany
Tel: [phone] - 0, Fax: [phone] - 24
E-mail: [email protected]e
IDEC (SHANGHAI) CORPORATION
Room 608-609, 6F, Gangtai Plaza, No. 700,
Yan'an East Road, Shanghai 200001, PRC
Tel: [phone], Fax: [phone]
E-mail: [email protected]
IDEC (BEIJING) CORPORATION
Room 211B, Tower B, The Grand Pacific Building,
8A Guanghua Road, Chaoyang District,
Beijing 100026, PRC
Tel: [phone], Fax: [phone]
IDEC (SHENZHEN) CORPORATION
Unit AB-3B2, Tian Xiang Building, Tian’an Cyber Park,
Fu Tian District, Shenzhen, Guang Dong 518040, PRC
Tel: [phone], Fax: [phone]
IDEC IZUMI (H.K.) CO., LTD.
Units 11-15, Level 27, Tower 1,
Millennium City 1, 388 Kwun Tong Road,
Kwun Tong, Kowloon, Hong Kong
Tel: [phone], Fax: [phone]
E-mail: [email protected]
IDEC TAIWAN CORPORATION
8F-1, No. 79, Hsin Tai Wu Road, Sec. 1,
Hsi-Chih, Taipei County, Taiwan
Tel: [phone], Fax: [phone]
E-mail: [e-mail]
IDEC IZUMI ASIA PTE. LTD.
No. 31, Tannery Lane #05-01,
HB Centre 2, Singapore 347788
Tel: [phone], Fax: [phone]
E-mail: [email protected]
www.idec.com