Autonics BW20 P Series Producthandleiding - Pagina 3
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Specifications
Model
BW20-□(P)
Sensing method
Through-beam
Light source
Infrared LED (850 nm modulated light)
Sensing distance
0.1 to 7.0 m
Sensing target
Opaque material
Min. sensing target ≥ Ø 30 mm
Number of
8 to 48
optical axes
Sensing height
140 to 940 mm
Optical axis pitch
20 mm
Response time
≤ 10 ms
Operation mode
Light ON
Functions
Emitter OFF (external diagnosis), self-diagnosis
Interference
Interference protection by MASTER / SLAVE function
protection
Synchronization type Timing method by synchronous line
Emitter: Operation indicator (green, red),
Indicator
receiver: Operation indicator (red, yellow, green)
Approval
ᜢ ᜫ
Weight (packaged)
≈ 1.4 kg (≈ 2.1 kg) (based on BW20-48) ≈ 1.4 kg (≈ 2.1 kg) (based on BW40-24)
01) C onnect '(TEST)M/S' of SLAVE emitter to 'SYNC' of MASTER. Refer to the product manual.
Power supply
12 - 24 VDCᜡ (ripple P-P: ≤ 10 %)
Current consumption Emitter / receiver: ≤ 120 mA
Control output
NPN or PNP open collector output
Load voltage
≤ 30 VDCᜡ
Load current
≤ 100 mA
Residual voltage
NPN: ≤ 1 VDCᜡ, PNP: ≤ 2.5 VDCᜡ
Reverse power protection circuit, output short overcurrent protection
Protection circuit
circuit
Insulation
≥ 20 MΩ (500 VDCᜡ megger)
resistance
Noise immunity
± 240 V the square wave noise (pulse width 1㎲) by the noise simulator
Between the charging part and the case
Dielectric strength
: 1,000 VACᜠ 50 / 60 Hz for 1minute
1.5 mm double amplitude at frequency of 10 to 55 Hz in each X, Y, Z
Vibration
direction for 2 hours
Shock
500 m/s² (≈ 50 G) in each X, Y, Z direction for 3 times
Ambient illumi.
Ambient light: ≤ 100,000 ㏓
(receiver)
Ambient temp.
-10 to 55 ℃, storage: -20 to 60 ℃ (no freezing or condensation)
Ambient humi.
35 to 85 %RH, storage: 35 to 85 %RH (no freezing or condensation)
Protection rating
IP65 (IEC standard)
Cable spec.
Ø 5 mm, 4-wire, 300 mm
Connector spec.
M12 plug connector
Material
Case: AL, front cover and sensing part: acryl
Installation Mode
This function is for stable installation.
For the first installation, enter installation mode.
1. I nputting 0 V to 4th terminal (black, MODE) of emitter, supply power to the product
to enter to the installation mode.
2. A fter entering installation mode, install the unit at the position where green LED of
receiver operation indicator turns ON.
3. A fter installation, disconnect 4th terminal (black, MODE) of emitter and re-supply
power to the unit.
Troubleshooting
Malfunction
Cause
Power supply
Cable incorrect connection, or
Non-operation
disconnection
Out of rated sensing distance
Pollution by dirt of sensor cover
Non-operation in
sometimes
Connector connection failure
Out of the rated sensing distance
There is an obstacle to cut off the
Control output is OFF
emitted light between emitter and
even though there is
receiver.
not a target object.
There is strong electric wave or noise
generator such as motor, electric
generator, or high voltage line, etc.
LED displays for break
Break of emitter
of emitter
LED displays for break
Break of receiver
of receiver
LED displays for break
Break of emitting element
of emitting element
Synchronous line incorrect
LED displays for
connection or disconnection
malfunction of
Break of synchronous circuit of
synchronous line
emitter or receiver
LED displays for failure
Break of emitter
of emitter
Control output line is shorted out.
LED displays for
over current
Over load
BW40-□(P)
≥ Ø 50 mm
4 to 24
120 to 920 mm
40 mm
01)
ᜢ ᜫ
Troubleshooting
Supply the rated power.
Check the wiring connection.
Use it within rated sensing distance.
Remove dirt by soft brush or cloth.
Check the assembled part of the
connector.
Use it within the rated sensing
distance.
Remove the obstacle.
Put away the strong electric wave or
noise generator.
Please contact customer service
center.
Check the wiring connection.
Please contact customer service
center.
Treat after checking the emitter
display LED.
Check the wiring connection.
Check the rated load capacity.
Functions
■ Interference protection
In case of using 2 sensors in parallel in order to extend sensing width, it may cause
sensing error because as light interference. This function is operating a sensor as
MASTER and another sensor as SLAVE to avoid these sensing errors by the light
interference. Connect '(TEST)M/S' of SLAVE emitter to 'SYNC' of MASTER.
• Time chart for MASTER/SLAVE transmission pulse
MASTER
SLAVE
• MASTER / SLAVE connections
(NPN open collector output)
MASTER
Brown
+V
White
+
SYNC
-
Black
TEST
(M/S)
Blue
0 V
Brown
+V
White
SYNC
Black
LOAD
OUT
Blue
0 V
SLAVE
Brown
+V
White
SYNC
Black
TEST
(M/S)
Blue
0 V
Brown
+V
White
SYNC
Black
LOAD
OUT
Blue
0 V
■ Emitter OFF (external diagnosis)
When 0 V is applied to the TEST input of the emitter, the light emission is forcibly
stopped and the external system can check whether the sensor is operating normally.
When the emission is stopped, the light is blocked. In the case of Light ON mode, the
control output turns OFF. If the emitting stops, sensor is in light OFF status and control
output of receiver turns OFF.
• Connections for TEST input
Vcc
(For
(For
contact relay)
Input part
R
solid state relay)
Black (TEST)
internal circuit
4
or
GND
3
Blue (0 V)
■ Optical axis misalignment alarm (low light intensity alarm)
This function outputs optical axis misalignment alarm, when front screen is
contaminated with dust, optical axis is misaligned due to vibration, emitter is
damaged due to the longterm usage, or light t is not received due to obstacle such
as leaves and trash on the product. The control output is changed according to the
degree of optical axis misalignment, and the red and green operation indicators of the
receiver flash alternately in 0.5 sec, and the yellow operation indicator turns on.
■ Self-Diagnosis
If there is checked malfunction during normal operation by regular self-diagnosis,
control output turns OFF and operation indicator displays the state.
For more information, refer to the "Operation Indicator"
• Break of emitting element
• Failure of emitter (time out)
• M alfunction of MASTER / SLAVE line
(operation in MASTER)
• MASTER / SLAVE connections
(PNP open collector output)
MASTER
Brown
+V
White
+
SYNC
-
Black
TEST
(M/S)
Blue
0 V
Brown
+V
White
SYNC
Black
OUT
LOAD
Blue
0 V
SLAVE
Brown
+V
White
SYNC
Black
TEST
(M/S)
Blue
0 V
Brown
+V
White
SYNC
Black
OUT
LOAD
Blue
0 V
• Control output pulse by TEST input
(contact relay)
OFF
Emitter black
(TEST)
ON
T1 ≥ 50 ms
T1
T1
ON
T2
T2
Receiver black
(OUT)
OFF
T2 ≥ 20 ms
Normal
Abnormal
• Break of emitter
• Break of receiver
• Control output over current