EE-SX770/771/772/870/871/872(A/P/R)
Thin, Compact Photomicrosensor with
Attached Cable
H Next generation design available with NPN
H
H
H
H
H
H
H
or PNP output
Allows standard M3-screw mounting
Twenty-four models available in standard,
L-shaped, and T-shaped
UL, EMC and CE approvals
Each model equipped with a flexible cable
that conforms to machine contours
Compact size allows high-density mounting
Indicators are visible from both sides
Readily-visible, molded workpiece insertion
mark allows fine-tuning of sensing position
Ordering Information
The operation indicator of models with suffix code (A) or (R) will turn ON when the light is interrupted.
Appearance
Sensing method
Standard
Slot
Sensing distance
5 mm
(0 2 in)
(0.2
((slot width))
Output configuration
Part number
NPN
EE-SX770
Dark-ON
EE-SX770A
PNP
EE-SX770P
EE-SX770R
NPN
Light-ON
g
EE-SX870
EE-SX870A
PNP
EE-SX870P
EE-SX870R
L-shaped
p
NPN
Dark-ON
EE-SX771
EE-SX771A
PNP
EE-SX771P
EE-SX771R
NPN
Light-ON
g
EE-SX871
EE-SX871A
PNP
EE-SX871P
EE-SX871R
T-shaped
p
NPN
Dark-ON
EE-SX772
EE-SX772A
PNP
EE-SX772P
EE-SX772R
NPN
Light-ON
g
EE-SX872
EE-SX872A
PNP
EE-SX872P
EE-SX872R
1
EE--SX770/771/772/870/871/872(A/P/R)
EE--SX770/771/772/870/871/872(A/P/R)
Specifications
Item
Through-beam models(slot)
Output configuration
Dark-ON
Output type
NPN
Model
EE-SX770
EE-SX771
EE-SX772
Light-ON
PNP
EE-SX770A
EE-SX771A
EE-SX772A
EE-SX770P
EE-SX771P
EE-SX772P
Supply voltage
5 to 24 VDC ± 10%, ripple (p-p): 10% max
Current
consumption
NPN
models
35 mA max.
PNP
models
30 mA max.
NPN
EE-SX770R
EE-SX771R
EE-SX772R
EE-SX870
EE-SX871
EE-SX872
PNP
EE-SX870A
EE-SX871A
EE-SX872A
Slot width
5 mm
Standard target object
Opaque: 2 x 0.8 mm min
Differential travel
0.025 mm
Control output
NPN open collector output models:
At 5 to 24 VDC: 100 mA load current (lc) with a residual voltage of 0.8 V max.
When driving TTL: 40 mA load current (lc) with a residual voltage of 0.4 V max.
EE-SX870P
EE-SX871P
EE-SX872P
EE-SX870R
EE-SX871R
EE-SX872R
PNP open collector output models:
At 5 to 24 VDC: 50 mA load current (lc) with a residual voltage of 1.3 V max.
Operation indicator
(See Note 1.)
Red LED is ON when the object to be detected is not present
Response frequency
(See Note 2.)
1 kHz
Light source
GaAs infrared LED with a peak light wavelength of 940 nm
Protective circuit
(See Note 3.)
Overcurrent protection (built-in circuit)
Ambient illuminance
Sensing surface: 1,000 ℓx max with fluorescent light
Ambient
t
temperature
t
Operating
-25°C to 55°C (-13°F to 131°F)
Storage
-30°C to 80°C (-22°F to 176°F)
Ambient
h idit
humidity
Operating
5% to 85%
Storage
5% to 95%
Vibration resistance
Destruction: 20 to 2,000 Hz, 1.5-mm double amplitude for 2 hours each in X, Y, and Z directions
Shock resistance
Destruction: 500 m/s2 (50G), three times each in X, Y, and Z directions
Degree of protection
IEC60529 IP60
Connection method
(standard length)
Pre-wired: 2 m
Casing material
PBT (polybutylene terephthalate)
Cable material
PVC (polyvinyl chloride resin)
Note: 1. The operation indicator of models with suffix code (A)
or (R) will turn ON when the light is interrupted.
2. The response frequency is a value obtained when the
EE-SX detects a rotating disc with holes in it, as shown
to the right.
3. Operates when the load current exceeds the rated
value of 100 mA to inhibit a current flow exceeding
120 mA.
Disc
2
EE--SX770/771/772/870/871/872(A/P/R)
EE--SX770/771/772/870/871/872(A/P/R)
Engineering Data
J SENSING POSITION (EE-SX77/87)
Dark ON
Dark ON
Output
Tr ON
Output
Tr ON
Output
Tr OFF
Output
Tr OFF
Y (mm)
Z (mm)
Output level transistor
J REPEATED SENSING POSITION CHARACTERISTICS (TYPICAL)
Distance d (mm)
No. of repetitions: 20 at Vcc = 12 V
nd1 = 0.002 mm
nd2 = 0.004 mm
nd3 = 0.005 mm
nd4 = 0.02 mm
nd5 = 0.04 mm
3
EE--SX770/771/772/870/871/872(A/P/R)
EE--SX770/771/772/870/871/872(A/P/R)
Operation
J OUTPUT CIRCUITS
Output
configuration
Model
Output
transistor
operation
NPN Output
EE-SX770
EE-SX771
EE-SX772
EE-SX770A
EE-SX771A
EE-SX772A
Dark-ON
Timing Charts
Incident
Interrupted
Operation indicator
(red)
Output transistor
Load (e.g., relay)
EE-SX870
EE-SX871
EE-SX872
EE-SX870A
EE-SX871A
EE-SX872A
Light-ON
EE-SX770P
EE-SX771P
EE-SX772P
EE-SX770R
EE-SX771R
EE-SX772R
OFF
ON
OFF
Brown
Operation
indicator
Operate
Reset
(Red)
Interrupted
Operation indicator
(red)
Output transistor
Dark-ON
Main
circuit
ON
Load
(e.g., relay)
5 to 24 VDC
Black
Control output
100 mA max.
Blue
OFF
ON
OFF
Operate
Reset
Incident
Interrupted
Operation indicator
(red)
Output transistor
Load (e.g., relay)
EE-SX870P
EE-SX871P
EE-SX872P
EE-SX870R
EE-SX871R
EE-SX872R
ON
Incident
Load (e.g., relay)
PNP Output
Output Circuit
Light-ON
ON
OFF
OFF
Operate
Interrupted
Output transistor
Load (e.g., relay)
Operation
indicator
Reset
Incident
Operation indicator
(red)
Brown
ON
ON
OFF
(Red)
Main
M
i
circuit
Control output
Black 50 mA max.
5 to 24 VDC
Blue
Load
(e.g., relay)
ON
OFF
Operate
Reset
4
EE--SX770/771/772/870/871/872(A/P/R)
EE--SX770/771/772/870/871/872(A/P/R)
Dimensions
Unit: mm (inch)
J STANDARD MODELS
EE-SX770
EE-SX770A
EE-SX770P
EE-SX770R
EE-SX870
EE-SX870A
EE-SX870P
EE-SX870R
18
(0.71)
Optical axis
2.9
(0.11)
9
(0.35)
12
(0.47)
5
(0.20)
0.3
(0.01)
4
(0.16)
0.3
(0.01)
Optical axis
Two, 6 dia.
Two, 3.2 dia. (0.13)
6.2
(0.24)
22.1
(0.87)
Indicator window
5
(0.20)
+50
2m 0
Vinyl-insulated round cable of 2.4 dia. (0.09)
(0.127 dia. x 7), 3 cores
Standard length: 2 m
J L-SHAPED MODELS
EE-SX771
EE-SX771A
EE-SX771P
EE-SX771R
EE-SX871
EE-SX871A
EE-SX871P
EE-SX871R
2
(0.08)
18
(0.71)
12
(0.47)
7.8
(0.31)
Four, R1.6
Optical axis
4
(0.16)
13
(0.51)
4.3
(0.17)
21
(0.83)
Six, R3
Indicator window
5
(0.20)
+50
2m 0
Vinyl-insulated round cable of 2.4 dia. (0.09)
(0.127 dia. x 7), 3 cores
Standard length: 2 m
2.9
(0.11)
9
(0.35)
0.3
(0.01)
4
(0.16)
0.3
(0.01)
5
12
(0.47)
5
(0.20)
Optical axis
EE--SX770/771/772/870/871/872(A/P/R)
EE--SX770/771/772/870/871/872(A/P/R)
J T-SHAPED MODELS
EE-SX772
EE-SX772A
EE-SX772P
EE-SX772R
EE-SX872
EE-SX872A
EE-SX872P
EE-SX872R
12.3
(0.48)
3.3
(0.13)
19.1
(0.75)
Optical axis
4
(0.16)
2.9
(0.11)
9
(0.35)
12
(0.47)
5
(0.20)
12
(0.47)
Optical axis
12.3
(0.48)
4.3
(0.17)
22.1
(0.87)
Four, R1.6 (0.06)
Two, R3 (0.12)
Indicator window
+50
5
(0.20)
2m 0
Vinyl-insulated round cable of 2.4 dia. (0.09)
(0.127 dia. x 7), 3 cores
Standard length: 2 m
6
EE--SX770/771/772/870/871/872(A/P/R)
EE--SX770/771/772/870/871/872(A/P/R)
Precautions
J MOUNTING
•
•
•
•
•
The EE-SX77/87 is a photomicrosensor that should be built
into equipment. For this reason, no special protective measures have been taken to protect the EE-SX77/87 from external light disturbance. Avoid malfunction by ensuring that
the EE-SX77/87 is not influenced by incandescent lamps or
other light sources that may cause external light disturbance.
Mount the photomicrosensor securely to flat plates. The
characteristics of the through-beam sensor change if the
slot is deformed.
Use M3 screws when mounting the EE-SX77/87. Be sure to
use spring washers with the screws, so that the screws will
not loosen. The tightening torque applied to each screw
must be no more than 0.59 N S m (6 kgf S cm).
Make sure that nothing will come into contact with the sensing element of the sensor. If the sensing element has
scratch damage, the operating characteristics of the photomicrosensor will decrease.
Securely mount the EE-SX77/87 to prevent loosening by
vibration or shock.
!
Caution
J TO AVOID DAMAGE
•
Do not use the EE-SX77/87 at voltage exceeding the rated
voltage range.
Brown
Sensor
Load
Black
Blue
•
Do not make mistakes in wiring, such as mistakes in polarity.
Brown
Sensor
Load
Black
Blue
J OPERATING ENVIRONMENT
•
•
Do not connect the EE-SX77/87 while power is applied, or
the EE-SX77/87 may be damaged.
Do not install the EE-SX77/87 in the following locations to
avoid malfunction or damage:
A. Locations with excessive dust
•
Do not short-circuit the load (i.e., do not connect a power
supply directly to the Sensor) as shown below.
Brown
B. Locations with corrosive gas
C. Locations where water, oil, or chemicals are directly
sprayed
D. Locations exposed to direct sunlight
•
•
7
Make sure that the operating ambient temperature is within
the rated range.
The photomicrosensor may be soluble in organic solvent,
acid, and alkaline, aromatic hydrocarbon, and chlorinated
aliphatic hydrocarbon solvents. The characteristics of the
photomicrosensor may decrease as a result. Make sure that
the photomicrosensor is free from these solutions.
Sensor
Black
Blue
Load
Load
short-circuiting
EE--SX770/771/772/870/871/872(A/P/R)
EE--SX770/771/772/870/871/872(A/P/R)
J WIRING
Voltage Output
For Surge Prevention
A photomicrosensor with open collector output can be connected
to a device with voltage-input specifications by connecting a
resistor between the power supply and output terminals, as
shown in the following circuit diagram. The value of the resistor is
normally 4.7 kΩ and must withstand a power of 0.5 W at 24 V
and 0.25 W at 12 V.
If the power supply has surge voltage, connect a Zener diode
withstanding 30 to 35 V or a 0.1 to 1-µF capacitor in parallel to
the power supply to absorb the surge voltage.
Brown
Output
Resistor
Black
0.1 to 1 µF
Counter (voltage-input model)
+24 V (power supply)
Blue
Output
Sensor
main
circuit
ZD: Zener diode
Input terminal (CP)
Input impedance:
approx. 4.7 kΩ
If the load is a relay or other small inductive load, connect it to the
EE-SX77/87 as shown below. You must connect a diode for
counter-voltage absorption.
Brown
+V
•
EE-SX77/87 series NPN models with a 4.7-kΩ resistor.
High level:
Output
Black
Blue
Relay
0V
Do not route power lines or high-tension lines in the same
conduit with the EE-SX77/87 to avoid damage or malfunction due
to induction.
Input voltage (VH) =
Z
4.7 k
VCC =
x 24 V = 12 V
R+Z
4.7 k + 4.7 k
Low level:
Input voltage (VL) ≦ 0.4 V
Load current (IC) =
VCC
R
=
24 V
= 5.1 mA ≦ 100 mA
R
5 to 24 VDC
Operation
indicator
(red)
Main
circuit
L
OUT
IC
(See Note.)
Load
RL
0V
Note: When using a voltage output, always insert a
resistor in RL.
Note: Refer to the ratings of the photomicrosensor for the relationship between the residual voltage and load current.
NOTE: DIMENSIONS SHOWN ARE IN MILLIMETERS. To convert millimeters to inches divide by 25.4.
R
OMRON ELECTRONICS LLC
OMRON ON--LINE
OMRON CANADA, INC.
1-800-55-OMRON
Global -- http://www.omron.com
USA -- http://www.omron.com/oei
Canada -- http://www.omron.com/oci
416-286-6465
One East Commerce Drive
Schaumburg, IL 60173
Cat. No. GC APMS-1
09/02
Specifications subject to change without notice.
885 Milner Avenue
Toronto, Ontario M1B 5V8
Printed in U.S.A.
8