PARTICULAR USE SENSORS
GD
Metal-sheet
Double-feed Detection
DS
M
CK-100
Die Stroke Counting
FD-L41/L42
SH-72
Glass Sheet Detection Sensor
Optimum Sensing
Capability for LCD
Manufacturing
526
Reliable Detection of Glass Sheets
Its unique optical system enables
detection of transparent glass sheet, as
well as, film deposite glass sheets at
the same sensing distance.
Sensing range
0.5 to 7.5mm Glass
sheet
Beam-
emitting
part Beam-
receiving
part
No Null Zone
The sensor can reliably detect a glass
sheet right in front of it.
Glass sheet
Not Affected by Background
Because it is convergent reflective
type, a glass sheet is reliably detected
without any effect of background
objects.
Glass sheet
Background object
High Precision
Repeatability: 0.03mm
0.03mm Glass
sheet
SH-72
Glass Sheet / Wafer Sensing
PARTICULAR USE SENSORS
GD
Metal-sheet
Double-feed Detection
CK-100
Die Stroke Counting
DS
M
FD-L41/L42
Two PNP
open-collector
transistor
outputs
sensing output and
self-diagnosis output
Four selectable
timer functions
(variable 0.05 to 5 sec.)
Appearance Sensing range
0.5 to 7.5mm
with transparent glass
sheet
Model No.
SH-72
Type
Convergent reflective
Type Appearance Model No.
12 to 24V DC
Ⳳ10%
1ms or less
3ms or less
Two outputs
•NPN transistor
universal
•PNP open-
collector
transistor
Two NPN
open-collector
transistor
outputs
sensing output and
self-diagnosis output
Supply voltage Output Response time
External
synchronization function
Timer
function
Automatic sensitivity setting
Manual sensitivity
setting type
Miniature plug-in
type Standard type
PNP output
With timer
NPN output
527
SH-72
APPLICATIONS
Detecting transparent glass sheets in a cassette Detecting a wafer
Sensor head
SH-72
Cassette
Transparent
glass sheet
ORDER GUIDE
Amplifiers
()
External
sensitivity
selection type
Remote
sensitivity
setting type
External
synchronization
input type
()
Two NPN
open-collector
transistor
outputs
sensing output and
self-diagnosis output
()
()
Two NPN
open-collector
transistor
outputs
sensing output and
self-diagnosis output
()
0.6ms or less
0.8ms or less when the
interference prevention
function is used
Incorporated
Either gate trigger or
edge trigger is selectable
ON-delay/
OFF-delay timer
(variable 0 to 5 sec.)
ON-delay/
OFF-delay timer
(variable 0 to 5 sec.)
Approx. 40ms fixed
OFF-delay timer
()
SU-75
SU-77
SU-79
()
Wafer
SH-72
SU-7
SU-7P
SS-A5
SS-A1
SS-AT1
SH-72
Glass Sheet / Wafer Sensing
SH-72
528
PARTICULAR USE SENSORS
GD
Metal-sheet
Double-feed Detection
DS
M
CK-100
Die Stroke Counting
FD-L41/L42
SH-72
Glass Sheet / Wafer Sensing
SPECIFICATIONS
Sensor head
Convergent reflective
SH-72
Environmental
resistance
SU-7 series, SS-A5, SS-A1, SS-AT1
0.5 to 7.5mm (with transparent glass sheet)
䡺24mm or more transparent glass, aluminum-evaporated mirror, etc.
5% or less of operation distance
0.03mm or less
ⳮ10 toⳭ60⬚C (No dew condensation or icing allowed), Storage ⳮ10 toⳭ60⬚C
35 to 85% RH, Storage: 35 to 85% RH
Sunlight: 11,000?x at the light-receiving face, Incandescent light: 3,500?x at the light-receiving face
10 to 55Hz frequency, 1.5mm amplitude in X, Y and Z directions for two hours each
500m/s2acceleration (50G approx.) in X, Y and Z directions for three times each
Infrared LED (modulated)
Enclosure: Polycarbonate
0.089mm2single core two parallel shielded cables, 3m long
Extension up to total 5m is possible with an equivalent cable.
25g approx.
Applicable amplifiers
Sensing range
Sensing object
Hysteresis
Repeatability (along sensing axis)
Ambient temperature
Ambient humidity
Ambient illuminance
Vibration resistance
Shock resistance
Emitting element
Material
Cable
Cable extension
Weight
Type
Item Model No.
12 to 24V DCⳲ10% Ripple P-P 10% or less
35mA or less 40mA or less 50mA or less
Selectable either Light-ON or Dark-ON with the ON and OFF buttons
Selectable either Light-ON or Dark-ON with the operation mode switch
Incorporated
ON under unstable sensing condition (restored
automatically after 40ms approx.), or if the sensing output
is short-circuited (restored when short-circuit is rectified)
0.6ms or less 1ms or less 3ms or less
(0.8ms or less when the interference prevention function is used)
Red LED (lights up when the sensing output is ON)
Continuously variable twin adjusters
Continuously variable adjuster
Incorporated (Two units of sensors can be mounted closely.)
(Either gate trigger or edge trigger is selectable with SU-75)
ⳮ10 toⳭ55⬚C, Storage:ⳮ20 toⳭ70⬚C
ⳮ25 toⳭ60⬚C, Storage:ⳮ30 toⳭ70⬚C
ⳮ10 toⳭ50⬚C, Storage:ⳮ10 toⳭ50⬚C
35 to 85% RH (No dew condensation or icing allowed), Storage: 35 to 85% RH
1,000V AC for one min. between all supply terminals connected together and enclosure
20MΩ, or more, with 250V DC megger (SS-A5: 500V DC megger)
between all supply terminals connected together and enclosure
10 to 150Hz frequency, 0.75mm amplitude in X,
Y and Z directions for two hours each
100m/s2acceleration (10G approx.) in X, Y and Z directions for five times
(SS-A5: three times) each
Enclosure: Heat-resistant ABS
Cover: Polycarbonate
Cable lock lever: PPS
0.2mm24-core cabtyre cable, 2m long
65g approx. 120g approx. 20g approx.
MS-DIN-2 (Amplifier mounting bracket): 1 No. Adjusting screwdriver: 1 No.
NPN open-collector transistor
•
Maximum sink current: 50mA
•
Applied voltage: 30V DC or less
(between self-diagnosis output and 0V)
•Residual voltage:
1V or less
(at 50mA sink current)
0.4V or less
(at 16mA sink current)
MS-DIN-1 (Amplifier
mounting bracket): 1 No.
Adjusting screwdriver: 1 No.
Adjuster cap: 1 No.
0.2mm24-core cabtyre
cable, 3m long
Enclosure:
Heat-resistant ABS
Cover: Polycarbonate
Enclosure: Polycarbonate
Terminal part: PBT
300m/s2acceleration (30G approx.) in X, Y and Z
directions for three times each
10 to 55Hz frequency, 1.5mm amplitude in X, Y and Z directions
for two hours each
Green LED
lights up under stable
light received condition
or stable dark condition
Environmental resistance
Slim body with automatic sensitivity setting
amplifier
PNP open-collector transistor
•
Maximum source current:
50mA or less
•Residual voltage:
2.0V or less
(at 50mA source current)
1.0V or less
(at 16mA source current)
Green LED
lights up under stable light received condition or
stable dark condition
(Refer to the SU-7 series P.350lfor details)
ON-delay/OFF-delay timer
(variable 0 to 5 sec.)
Approx. 40ms fixed OFF-delay timer,
selectable either effective or ineffective
Four selectable timer functions
(variable 0.05 to 5 sec.)
ON under stable sensing
condition
NPN open-collector transistor
•
Maximum sink current: 100mA
•
Applied voltage: 30V DC or less
(between sensing output and 0V)
•
Residual voltage:
1V or less
(at 100mA sink current)
0.4V or less
(at 16mA sink current)
PNP open-collector transistor
•
Maximum source current:
100mA or less
•Residual voltage:
2.0V or less
(at 100mA source current)
1.0V or less
(at 16mA source current)
NPN open-collector transistor
•
Maximum sink current: 100mA
•
Applied voltage: 30V DC or less
(between sensing output and 0V)
•
Residual voltage:
1.5V or less
(at 100mA sink current)
0.4V or less
(at 16mA sink current)
NPN transistor universal
•Maximum sink current: 80mA
•Residual voltage: 1V or less
(at 80mA sink current)
PNP open-collector transistor
•Maximum source current: 80mA
•Residual voltage: 1.5V or less
(at 80mA source current)
Manual sensitivity
setting amplifier Miniature plug-in amplifier
Note: Refer to P.356 for details of other SU-7 series amplifiers.
529
SH-72
PARTICULAR USE SENSORS
GD
Metal-sheet
Double-feed Detection
CK-100
Die Stroke Counting
DS
M
FD-L41/L42
SH-72
Glass Sheet / Wafer Sensing
SPECIFICATIONS
Amplifiers
()
()
NPN open-collector transistor
•
Maximum sink current: 50mA
•
Applied voltage: 30V DC or less
(between self-diagnosis output and 0V)
•Residual voltage:
1V or less
(at 50mA sink current)
0.4V or less
(at 16mA sink current)
Supply voltage
Current/Power consumption
Sensing output
Output operation
Short-circuit protection
Self-diagnosis output
Output operation
Short-circuit protection
Response time
Operation indicator
Stability indicator
Sensitivity adjuster
Interference prevention function
Timer function
External synchronization function
Ambient temperature
Ambient humidity
Voltage withstandability
Insulation resistance
Vibration resistance
Shock resistance
Material
Cable
Weight
Accessories
Type
Item Model No. NPN output PNP output With timer
SU-7 (Note) SU-7P (Note) SS-A5 SS-A1 SS-AT1
SH-72
530
PARTICULAR USE SENSORS
GD
Metal-sheet
Double-feed Detection
DS
M
CK-100
Die Stroke Counting
FD-L41/L42
SH-72
Glass Sheet / Wafer Sensing
I/O CIRCUIT AND WIRING DIAGRAMS
SENSING CHARACTERISTICS (TYPICAL)
Sensing field
Refer to P.357 and P.372 for I/O circuit and wiring diagrams
of SU-7 series and SS-A5, respectively.
SS-A1
SS-AT1
I/O circuit diagram
Symbols … D1: Reverse supply polarity protection diode
D2: Reverse current protection diode
ZD1, ZD2: Surge absorption zener diode
Tr1: PNP output transistor
Tr2: NPN output transistor
Users’ circuitInternal circuit
D1
Tr1
80mA max.
Tr280mA max.
PNP output
NPN output
Terminal No. Gray cable (Emitter)
Brown lead wire
Black cable (Receiver)
Yellow lead wire
Shield
Shield
4.7
kΩD2
ⳭV
0V
5
1
8
4
14
9
12
13
ZD1
ZD2
Load
Load
Sensor circuit
ⴐ
ⳮ
12 to 24V DC
Ⳳ10%
Wiring diagram
NPN output
Load
Load
14
58
912
13 14
0V ⳭV
(BOTTOM VIEW)
12 to 24V DCⳲ10%
ⳮⳭ
Brown
lead wire
Yellow
lead wire
Shield Shield
Gray cable Black cable
PNP output
80mA
max.
80mA
max.
42024
0
4
8
24⳯24mm
Transparent glass sheet
L
Center RightLeft
Sensor
head
Operating point # (mm)
#
Setting distance L (mm)
PARTICULAR USE SENSORS
GD
Metal-sheet
Double-feed Detection
CK-100
Die Stroke Counting
DS
M
FD-L41/L42
531
SH-72
This product is not a safety sensor. Its use is not
intended or designed to protect life and prevent body
injury or property damage from dangerous parts of
machinery. It is a normal object detection sensor.
PRECAUTIONS FOR PROPER USE
Use the sensor head and the amplifier together at a set.
Mounting of the sensor head
•The tightening torque with M3 screws should be 0.29N 䡠m
or less.
Refer to P.820lfor general precautions, P.360lfor precautions for SU-7 series,
and P.373lfor precautions for SS-A5.
M3 screws
(Please arrange separately.)
Wiring
•If the attached sensor head cables need to be extended,
use two single core shielded cables of at least equivalent
quality. (Extension up to total 5m is possible.)
If a joint terminal or connector is used for extension, refer
to the figures below. (The shielded extension cable must
be of "1.45mm outer diameter.)
SH-72
Connection with metal connector
The beam-emitting
cable and the
beam-receiving
cable must not be
connected to one
metal con-nector.
Use two separate
metal connectors.
Beam-
emitting
cable
NG
Beam-
receiving
cable
Connection with joint terminal
The beam-emitting
cable and the
beam-receiving
cable should be
separated from
each other as
much as possible.
This distance
should be as
short as pos-
sible.
Beam-
emitting
cable
NG
Beam-
receiving
cable
SH-72
Glass Sheet / Wafer Sensing
SH-72
532
PARTICULAR USE SENSORS
GD
Metal-sheet
Double-feed Detection
DS
M
CK-100
Die Stroke Counting
FD-L41/L42
SH-72
Glass Sheet / Wafer Sensing
PRECAUTIONS FOR PROPER USE
Wiring
•Use a miniature commercially available power-relay
terminal base to connect SS-A1 or SS-AT1.
Suitable terminal base: AP3822K produced by Matsushita
Electric Works Co., Ltd.
SM2S-05B produced by IDEC IZUMI Co., Ltd.
TP514S1 produced by Fuji ELECTRIC Co., Ltd.
Timer functions
•SS-AT1 and SS-AT9 have three convenient
built-in timer functions.
ON-delay (OND)
<Function>: Neglects short output signals.
<Application>: As only long signals are
extracted, this function is useful
for detecting if a line is clogged,
or for sensing only objects taking
a long time to travel.
OFF-delay (OFD)
<Function>: Extends the output signal for a
fixed period of time.
<Application>: This function is useful if the
output signal is so short that the
connected device cannot
respond.
ONE SHOT (OSD)
<Function>: Outputs a fixed width signal upon
sensing.
<Application>: This function is useful when the
input specifications of the
connected device require a
signal of fixed width. Of course,
it is also useful for extending a
short width signal to a desired
width.
Various other applications are also possible.
SS-A1
SS-AT1
Refer to P.820lfor general precautions, P.360lfor precautions for SU-7 series,
and P.373lfor precautions for SS-A5.
Dark
Light
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
T
TT T
TTT
TT T
T
TTT
LIGHT ON
DARK ON
Setting
Timer operation mode
Operation
mode
Sensing
condition
Operation
Light received
normal
operation
Light
received
ON-delay
Light
received
OFF-delay
Light received
ONE SHOT
Light
interrupted
normal operation
Light
interrupted
ON-delay
Light
interrupted
OFF-delay
Light interrupted
ONE SHOT
Timer period: T=0.05 to 5 sec.
Light-ON
operation
Dark-ON
operation
Selection switch and timer operation
Other
•Do not use during the initial transient time (50ms) after
the power supply is switched on.
PARTICULAR USE SENSORS
GD
Metal-sheet
Double-feed Detection
CK-100
Die Stroke Counting
DS
M
FD-L41/L42
533
SH-72
SH-72 Sensor head
DIMENSIONS (Unit: mm)
12
62.5
19
2-"3.5
mounting holes
40 36.5
Beam-
emitting
part Beam-
receiving
part
"1.45 single core two parallel
shielded cables 3m long
Amplifier
SS-AT1
CBA
k
k
Timer adjuster
(SS-AT1 only)
(SS-AT1 only)
Sensitivity
adjuster
Operation
indicator (Red)
Timer operation mode
switch
Operation mode switch
26.5
35.5
6.9
27.4
20
21
SS-A1
SS-AT1
Refer to P.366 and P.376 for dimensions of
SU-7 series and SS-A5, respectively.
SH-72
Glass Sheet / Wafer Sensing