Panasonic EX-21 Series Manual de usuario
2
Contens
1. Cautions··························································································3
2. Part Description ················································································4
3. Mounting ·························································································6
3-1 Mounting the sensor ··············································································· 6
3-2 Mounting to sensor mounting bracket (Optional)··········································· 7
3-3 Mounting to mounting spacer (Optional) (Front sensing type) ·························· 8
3-4 Installation interval ················································································ 9
3-5
)
··13
4. I/O Circuit Diagram ·········································································· 14
5. Adjustment····················································································· 15
5-1
Beam alignment (Thru-beam type / )
··15
5-2
,
)
····························································16
6. Stability Indicator············································································· 18
7. Option··························································································· 19
7-1 Slit mask (Thru-beam type / ) ·············································19
) ································20
················································································· 21
9. Dimensions ···················································································· 24
3
1. Cautions
WARNING
Never use this product as a sensing device for personnel protection.
In case of using devices for personnel protection, use products which meet laws and
standards, such as OSHA, ANSI or IEC etc., for personnel protection applicable in
each region or country.
This product has been developed / produced for industrial use only.
The thin cable (0.1mm2) is used for this product. Thus, take care that if the cable is
pulled with excessive force, it may cause cable break.
Convergent reflective type EX-24
there is a reflective object (conveyor, etc.) in the background, since it may affect the
If a reflective object is present in the background, the sensing of narrow-view reflec-
tive type EX-28
If sensors are mounted close together and the ambient temperature is near the maxi-
mum rated value, provide for enough heat radiation / ventilation.
Make sure to carry out 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.
In case noise generating equipment (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 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.
Do not use during the initial transient time (50ms) after the power supply is switched
ON.
lamp, a high frequency lighting device or sunlight etc., as it may affect the sensing per-
formance.
Extension up to total 50m (each emitter and receiver of thru-beam type), or less, is pos-
sible with 0.3mm2, or more of conductor area cable. However,the extension of a power
supply line and the output line of less than 10m is acceptable in case using this product
as conforming to S-mark.
This sensor is suitable for indoor use only.
Do not use this sensor in places having excessive vapor, dust, etc., or where it may
come in contact with corrosive gas, etc.
Take care that the sensor does not come in contact with oil, grease, organic solvents
such as thinner, etc., strong acid, or alkaline.
Never disassemble or modify the sensor.
4
2. Part Description
<Emitter>
Beam-emitting
part
<Receiver>
Operation indicator (Orange)
Lights up when the output is
ON.
Stability indicator (Green)
Lights up under stable
light received condition
or stable dark condition.
Beam-receiving
part
Operation
mode switch Operation Description
Light-ON Light-ON mode is obtained when the operation mode switch is
turned fully clockwise (L side).
Dark-ON Dark-ON mode is obtained when the operation mode switch is
turned fully counterclockwise (D side).
Note: Use the accessory adjusting screwdriver to turn the operation mode switch slowly. Turning
with excessive strength will cause damage to the adjuster.
Operation mode
switch
<Receiver>
Operation indicator
(Orange)
Lights up when the
output is ON.
Stability indicator
(Green)
Lights up under
stable light received
condition or stable
dark condition.
Beam-receiving
part
<Emitter>
Sensitivity adjuster
Sensing range
increases when
turned clockwise.
Beam-
emitting
part
5
Stability indicator
(Green)
Lights up under
stable light received
condition or stable
dark condition.
Operation indicator
(Orange)
Lights up when the
output is ON.
Beam-receiving part
Beam-emitting part Sensitivity adjuster
Sensing range
increases when
turned clockwise.
Beam-emitting partBeam-receiving part
Stability indicator (Green)
Lights up under stable
light received condition
or stable dark condition.
Operation indicator (Orange)
Lights up when the output is
ON.
6
3. Mounting
3-1 Mounting the sensor
Mount using M3 screws. The tightening torque should be 0.5N·m or less.
M3 pan head screws
(Note)
Front sensing type
M3 screws
Side sensing type
7
3-2 Mounting to sensor mounting bracket (Optional)
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
Sensor mounting bracket for side sensing type
MS-EX20-1
Material: Stainless steel (SUS304)
Two M3 (length 5mm) pan head screws
[stainless steel (SUS304)] are attached.
MS-EX20-3
Material: Stainless steel (SUS304)
Two M3 (length 5mm) pan head screws
[stainless steel (SUS304)] are attached.
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.
MS-EX20-5
Two M3 (length 12mm) screws with washers [stainless steel (SUS304)],
one M3 (length 10mm) hexagon-socket-head bolt [stainless steel (SUS304)],
one M3 hexagon nut [stainless steel (SUS304)] are attached.
Material: Die-cast zinc alloy
Material: Nylon 6
Swivel: 360° rotation
Height adjustment: Approx. 15mm
8
3-3 Mounting to mounting spacer (Optional)
(Front sensing type)
MS-EX20-FS
Mounting method
1. Fit the mounting spacer on the sensor.
2. Align the mounting holes of the mounting spac-
er and the sensor and mount with M3 screws.
The tightening torque should be 0.5N·m or less.
Mounting spacer
MS-EX20-FS
(Optional)
M3 screws
9
3-4 Installation interval
This product does not incorporate auto interference prevention function. In case aligning
2 of this sensors closely, follow diagrams below. (typical)
In case using at sensing distance (L1) 1m, the op-
diagram.
The installation interval is
Approx. 59.2mm × 2 = approx. 118.4mm
Thus, install EX-21
away.
In case using at sensing distance (L2) 2m, the op-
diagram.
The installation interval is
Approx. 66.9mm × 2 = approx. 133.8mm
Thus, install EX-23
away.
EX-21
EX-23
EX-21
EX-23
EX-21
EX-23
Parallel deviation diagram (typical) of Thru-beam type EX-23
100
50 0 50 100
1
2(L2)
0
Setting distance L (mm)
CenterLeft Right
Parallel deviation diagram (typical) of Thru-beam type EX-21
100
50 0 50 100
0.5
1(L1)
0
Setting distance L (mm)
CenterLeft Right
10
In case using at sensing distance (L3) 200mm, the
left diagram.
The installation interval is
Approx. 9.7mm × 2 = approx. 19.4mm
Thus, install EX-29
away.
EX-29
EX-29
EX-29
20
10 0 10 20
100
200 (L3)
0
Setting distance L (mm)
CenterLeft Right
Este manual sirve para los siguientes modelos
24
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