Sunx EX-21A Instruction Manual

INSTRUCTION MANUAL
Ultra-compact Photoelectric Sensor Amplifier Built-in Type
EX-20
Series
Thru-beam
Type
Front sensing Side sensing Side sensing Side sensing
Model
Light-ON EX-21A(-PN)
EX-23(-PN)
No.
(Note 2)
Dark-ON EX-21B(-PN)
(Note 1)
Sensing range 1m
Min. ø2.6mm Min. ø3mm
opaque object opaque object
Sensing object
Setting distance Setting distance
between emitter and between emitter and
receiver: 1m receiver: 2m
Hysteresis
Repeatability
0.05mm or less
(perpendicular to sensing axis)
Supply voltage
Current consumption Emitter: 10mA or less, Receiver: 15mA or less
EX- A, EX-
NPN open-collector transistor
• Maximum sink current: 50mA
Output
• Applied voltage: 30V DC or less(between output and 0V)
• Residual voltage: 1V or less(at 50mA sink current)
Short-circuit protection
Response time
Operation indicator Orange LED (lights up when the output is ON)(thru-beam type: located on the receiver)
Green LED
lights up under stable light received
Stability indicator
condition or stable dark condition
located on the receiver
Continuously variable adjuster,
Sensitivity adjuster
located on the emitter
Protection
Ambient temperature –25 to +55˚C(No dew condensation or icing allowed), Storage: –30 to +70˚C
Ambient humidity
Emitting element
Material
2
0.1mm
Cable
Weight Emitter, receiver: 20g approx. each
Accessories Adjusting screwdriver: 1 No.
Notes: 1 ) Model Nos. having the suffix '-PN' are PNP output type.
The retroreflective type having the suffix '-Y' at the end of the model No. does not have the reflector RF-200 enclosed with it.
Notes: 2 )
Either Light-ON or Dark-ON can be selected by the operation mode switch (located on the receiver).
Notes: 3 )
The sensing range and the sensing object of the retroreflective type sensor are specified for the RF-200 reflector.
Further, the sensing range is the possible setting range for the reflector. The sensor can detect an object less
than 30mm away. However, if the reflector is set 100mm or less away, the sensing object should be opaque.
Notes: 4 )
In case of using this product at a sensing range of 50mm or less, take care that the sensitivity adjustment range
becomes extremely narrow.
EX-24A ( -PN ) and EX-24B ( -PN ) are not
incorporated with a sensitivity adjuster. If
there is a reflective object (conveyor, etc.) in
the background, since it may affect the sensing,
use these models by keeping enough
distance from the reflective object.
If a reflective object is present in the
background, the sensing of EX-28A ( -PN ) and
EX-28B ( -PN ) may be affected. When setting
the sensor, make sure to confirm that the
reflective object has no effect. In case the
reflective object affects the sensing, take
measures such as removing the reflective
object or coloring it in black, etc.
If sensors are mounted close together and the
ambient temperature is near the maximum
rated value, provide for enough heat radiation/
ventilation.
Make sure to carry out the wiring in the power
supply off condition.
Take care that wrong wiring will damage the sensor.
Verify that the supply voltage variation is
within the rating.
If power is supplied from a commercial switching
regulator, ensure that the frame ground (F.G) terminal
of the power supply is connected to an actual ground.
Thank you very much for using SUNX sensors.
Please read this Instruction Manual carefully and
thoroughly for the correct and optimum use of this
sensor. Kindly keep this manual in a convenient
place for quick reference.
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.
Retroreflective Diffuse reflective
EX-29A(-PN) EX-22A(-PN)
EX-29B(-PN) EX-22B(-PN)
5 to 160mm
With 200 200mm
30 to 200mm
2m
white non-glossy
(Note 3)
paper
(Note 4)
ø15mm or more
Opaque,
opaque or
translucent or
translucent object
transparent object
(Note 3)
0.5mm or less 0.3mm or less
12 to 24V DC ±10% Ripple P-P 10% or less
B, EX-23 EX-
PNP open-collector transistor
• Maximum source current: 50mA
• Applied voltage: 30V DC or less(between output and +V)
• Residual voltage: 1V or less(at 50mA source current)
0.4V or less(at 16mA sink current)
Incorporated
0.5ms or less
(
lights up under stable light received condition or stable dark condition
Continuously variable adjuster
IP67(IEC)
35 to 85% RH, Storage: 35 to 85% RH
Red LED(modulated)
Enclosure: Polyethylene terephthalate, Lens: Polyalylate
3-core(thru-beam type sensor emitter: 2-core) cabtyre cable, 2m long
RF-200(Reflector): 1 No.
Adjusting screwdriver: 1 No.
Adjusting screwdriver: 1 No.
In case
(switching regulator, inverter motor, etc.) is
used in the vicinity of this product, connect the
frame ground (F.G.) terminal of the equipment
to an actual ground.
Do not use during the initial transient time
(50ms) after the power supply is switched on.
Extension up to total 50m (thru-beam type:
both emitter and receiver) is possible with
0.3mm
Make sure that stress is not applied directly to
the sensor cable joint.
Do not run the wires together with high-
voltage lines or power lines or put them in the
same raceway. This can cause malfunction
due to induction.
Take care that the sensor is not directly
exposed to fluorescent light from a rapid-starter
lamp or a high frequency lighting device, as it
may affect the sensing performance.
Avoid dust, dirt and steam.
Take care that the sensor does not come in
direct contact with water, oil, grease, or
organic solvents, such as, thinner, etc.
Convergent reflective Narrow-view reflective
Diffused beam type Small spot beam type Long di s tance spot beam type
Front sensing Side sensing Side sensing
EX-24A(-PN) EX-26A(-PN) EX-28A(-PN)
EX-24B(-PN) EX-26B(-PN) EX-28B(-PN)
6 to 14mm
2 to 25mm
45 to 115mm
(Conv. point: 10mm)
(Conv. point: 10mm)
With 100 100mm
With 50 50mm
With 50 50mm
white non-glossy paper,
white non-glossy paper,
white non-glossy
spot diameter ø5mm with
spot diameter ø1mm with
paper
setting distance 80mm.
setting distance 10mm.
Opaque,
Min. ø0.1mm Min. ø0.1mm
translucent or
copper wire copper wire
transparent object
Setting Setting
Min. ø1mm
distance: distance:
copper wire wich
10mm 10mm setting distance 80mm
15% or less of operation distance
0.1mm or less 0.05mm or less
0.3mm or less
(Setting distance: 10mm) (Setting distance: 10mm)
20mA or less
A-PN, EX- B-PN, EX-23-PN
0.4V or less(at 16mA source current)
Green LED
Continuously variable adjuster
20g approx.
Adjusting screwdriver: 1 No.
noise generating equipment
2
, or more, cable.
EX- A, EX- B, EX-23 / NPN output type
Color code
(Brown)+V
D
(Black) Output (Note)
Tr
50mA max.
Z
D
(Blue) 0V
Internal circuit Users' circuit
Note: The emitter of thru-beam type sensor does not incorporate the output.
Symbols . . . D : Reverse supply polarity protection diode
Symbols . . . Z : Surge absorption zener diode
D
Symbols . . . Tr : NPN output transistor
EX- A-PN, EX- B-PN, EX-23-PN / PNP output type
Color code
(Brown)+V
Z
D
50mA max.
Tr
(Black) Output (Note)
D
(Blue) 0V
Internal circuit Users' circuit
Note: The emitter of thru-beam type sensor does not incorporate the output.
Symbols . . . D : Reverse supply polarity protection diode
Symbols . . . Z : Surge absorption zener diode
D
Symbols . . . Tr : PNP output transistor
Mount using M3 screws. The tightening torque
should be 0.5N·m or less.
)
M3 pan head screws (Note)
Note: When mounting the front sensing type sensor, use
M3 pan head screws without washers, etc.
Sensor mounting brackets (optional) are available. In
case the sensor is mounted on a sensor mounting
bracket the tightening torque should be 0.5N·m or less.
Sensor mounting bracket for front sensing type
MS-EX20-1
Material: Stainless steel
(SUS304)
Two M3 (length 5mm)
pan head screws
[stainless steel (SUS304)]
are attached.
Sensor mounting bracket for side sensing type
MS-EX20-2
Material: Stainless steel
(SUS304)
Two M3 (length 14mm)
screws with washers
[stainless steel (SUS304)]
are attached.
MS-EX20-4
Material: Stainless steel (SUS304)
Two M3 (length 14mm)
screws with washers
[stainless steel (SUS304)]
are attached.
Load
+ 12 to 24V DC
±10%
–
+
12 to 24V DC
±10%
–
Load
M3 screws
MS-EX20-3
Material: Stainless steel (SUS304)
Two M3 (length 5mm) pan head screws
[stainless steel (SUS304)] are attached.
MS-EX20-5
[For EX-23 (-PN)]
Swivel:
360° rotation
Material:
Die-cast zinc alloy
Height adjustment:
15mm approx.
Material: Nylon 6
Two M3 (length 12mm) screws with washers
[stainless steel (SUS304)],
one M3 (length10mm) hexagon-socket-head bolt
[stainless steel (SUS304)], and
one M3 hexagon nut [stainless (SUS304)] are
attached.