Autonics BF4RP User manual

B-33
Fiber Optic Amplier
(A)
Photoelectric
Sensors
(B)
Fiber
Optic
Sensors
(C)
Door/Area
Sensors
(D)
Proximity
Sensors
(E)
Pressure
Sensors
(F)
Rotary
Encoders
(G)
Connectors/
Connector Cables/
Sensor Distribution
Boxes/ Sockets
(H)
Temperature
Controllers
(I)
SSRs / Power
Controllers
(J)
Counters
(K)
Timers
(L)
Panel
Meters
(M)
Tacho /
Speed / Pulse
Meters
(N)
Display
Units
(O)
Sensor
Controllers
(P)
Switching
Mode Power
Supplies
(Q)
Stepper Motors
& Drivers
& Controllers
(R)
Graphic/
Logic
Panels
(S)
Field
Network
Devices
(T)
Software
Features
High Reliability Of Fiber Optic Amplifier For Convenient Mounting
● High speed response: max. 0.5ms
● Auto sensitivity setting (button setting)/external input sensitivity setting type
● External synchronization input, mutual interference protection, self-diagnosis
● Reverse power polarity and short-circuit (overcurrent) protection circuit
● Timer function: selectable none / 40ms OFF delay timer (xed)
(standard type, remote sensitivity setting type only)
● Automatically selectable Light ON / Dark ON
● Precise detection of small target and easy to install in the complicated place
※1: The weight includes packaging. The weight in parenthesis is for unit only.
※The temperature or humidity mentioned in Environment indicates a non freezing or condensation environment.
Model Standard type External synchronization
input type
External input sensitivity
setting type
BF4RP BF4GP BF4R BF4G BF4R-E BF4G-E BF4R-R BF4G-R
Light source Red LED
(660nm)
Green LED
(525nm)
Red LED
(660nm)
Green LED
(525nm)
Red LED
(660nm)
Green LED
(525nm)
Red LED
(660nm)
Green LED
(525nm)
Power supply 12-24VDCᜡ ±10% (ripple P-P: max.10%)
Current consumption Max. 45mA
Operation mode Light ON/Dark ON switching
Control output
NPN or PNP open collector output
● Load voltage: max. 30VDCᜡ ● Load current: max. 100mA
● Residual voltage - NPN: max. 1V (load current: 100mA), max. 0.4V (load current: 16mA) / PNP: max. 2.5V
Protection circuit Reverse polarity protection circuit, short-circuit (overcurrent) protection circuit
Response time Max. 0.5ms (frequency 1), max. 0.7ms (frequency 2)
Sensitivity setting Sensitivity setting button (ON/OFF)
Indicator Control output indicator (OUT): red LED,
Stability indicator (STAB): green LED (turns ON at stable light ON/OFF level)
Mutual interference prevention Built-in differential frequency mode (frequency 1 (normal mode): max. 0.5ms, frequency 2: max. 0.7ms)
Self-diagnosis output
ON state under unstable sensing (when the target stays for 300ms in unstable level),
ON state when control output is short-circuited
● Load voltage: max. 30VDCᜡ ● Load current: max. 50mA
● Residual voltage - NPN: max. 1V (load current: 50mA), max. 0.4V (load current: 16mA) / PNP: max. 2.5V
Input of stop transmission function - Built-in -
External synchronization function - Built-in (gate/trigger) -
Remote sensitivity setting function - - Built-in
Timer function OFF delay (40ms) - OFF delay (40ms)
Insulation resistance Over 20MΩ (at 500VDC megger)
Noise immunity ±240V the square wave noise (pulse width: 1㎲) by the noise simulator
Dielectric strength 1,000VAC 50/60Hz for 1 minute
Vibration 1.5mm amplitude at frequency of 10 to 55Hz (for 1 min) in each X, Y, Z direction for 2 hours
Shock 500m/s² (approx. 50G) in each X, Y, Z direction for 3 times
Environ-
ment
Ambient illumination Sunlight: max. 11000㏓, Incandescent lamp: max. 3000㏓ (received illumination)
Ambient temperature -10 to 50℃, storage: -20 to 70℃
Ambient humidity 35 to 85% RH, storage:35 to 85% RH
Material Case: heat-resistance acrylonitrile butadiene styrene, cover: polycarbonate
Cable
Ø4mm, 4-wire, 2m
(AWG22, core diameter: 0.08mm, number of cores:
60, insulator out diameter: Ø1.25mm)
Ø4mm, 6-wire, 2m
(AWG24, core diameter: 0.08mm, number of cores:
40, insulator out diameter: Ø1mm)
Accessory Mounting bracket, bolts, nuts
Approval
Weight※1Approx. 120g (approx. 65g)
Specifications
Please read “Safety Considerations” in operation
manual before using.
BF4 Series
BF 4 R P E- No mark Standard type
E External synchronization input type
R External input sensitivity setting type
No mark NPN open collector output
P PNP open collector output
R Red LED
GGreen LED
4 Series
BF Fiber Sensor
Ordering Information

B-34
BF4 Series
※Connect Diode at external terminal for inductive load.
BF4R / BF4G BF4RP / BF4GP
Fiber optic sensor circuit Connection Fiber optic sensor circuit Connection
(blue) 0V
12-24VDC 12-24VDC
+
-
+
-
(brown) +V
(black)
Control output
(white)
Self-diagnosis output
Max. 50mA
Max. 100mA
※
※
Load
Load
Load
Load
(blue) 0V
(brown) +V
(black) Control output
(white)
Self-diagnosis
output
Max. 50mA
Max. 100mA
※
※
Main circuit
Main circuit
BF4R-E / BF4G-E BF4R-R / BF4G-R
Fiber optic sensor circuit Connection Fiber optic sensor circuit Connection
12-24VDC 12-24VDC
+
-
+
-
(white)
Self-diagnosis output
(white)
Self- diagnosis output
(brown) +V (brown) +V
(pink) (pink)
(orange) (orange)
※
Load
Load
Load
※Load
(black)
Control output (black) Control output
Max. 50mA
(blue) 0V (blue) 0V
External
synchronization input ON input of remote
sensitivity setting
Emission
disable input OFF input of remote
sensitivity setting
Max.
100mA
※
※
Max. 50mA
Max. 100mA
Main circuit
Main circuit
Control Output Diagram
Feature Data
● Measurement: BF4 (- )+ FT-420-10 ● Measurement: BF4 (- ) + FD-620-10
Through-beam type Diffuse reflective type
Parallel shifting characteristic
Measuring method Data
L
ℓ1
Receiver
Emitter
0
400
100
200
300
500
600
200 100
-100 -200 0
Left Center Right
ℓ1ℓ1
Sensing distance L (mm)
Sensing area ℓ1 (mm)
Sensing area characteristic
Measuring method Data
L
ℓ1
0
30
60
90
120
150
180
0
-10 -30 1030 -20 20
Left Center Right
ℓ1ℓ1
Sensing distance L (mm)
Sensing area ℓ1 (mm)

B-35
Fiber Optic Amplier
(A)
Photoelectric
Sensors
(B)
Fiber
Optic
Sensors
(C)
Door/Area
Sensors
(D)
Proximity
Sensors
(E)
Pressure
Sensors
(F)
Rotary
Encoders
(G)
Connectors/
Connector Cables/
Sensor Distribution
Boxes/ Sockets
(H)
Temperature
Controllers
(I)
SSRs / Power
Controllers
(J)
Counters
(K)
Timers
(L)
Panel
Meters
(M)
Tacho /
Speed / Pulse
Meters
(N)
Display
Units
(O)
Sensor
Controllers
(P)
Switching
Mode Power
Supplies
(Q)
Stepper Motors
& Drivers
& Controllers
(R)
Graphic/
Logic
Panels
(S)
Field
Network
Devices
(T)
Software
● BF4R / BF4G
● BF4R-E / BF4G-E
● BF4RP / BF4GP
● BF4R-R / BF4G-R
(brown) +V
(black) Control output
(white) Self-diagnosis output
(blue) 0V
Load
Load
12-24VDC
+
-
(brown) +V
(black) Control output
(white) Self-diagnosis output
(blue) 0V
Load Load
(pink) External synchronization input
(orange)
Emission disable input
12-24VDC
+
-
(black) Control output
(white) Self-diagnosis output
(blue) 0V
(brown) +V
Load Load
12-24VDC
+
-
(brown) +V
(black) Control output
(white) Self-diagnosis output
(blue) 0V
Load
Load
(pink) ON input of remote sensitivity setting
(orange)
OFF input of remote sensitivity setting
12-24VDC
+
-
Connections
Dimensions
12
2-Ø2.4
87.3
32.8
32.8
12
2-Ø2.4
87.3
32.8
62
36.5
Ø4, 2m
16.4
3
4
14 35mm DIN rail
useable
26.9
65.3
38
9
27
14
2
35
8.5
4
12
1
16
R1.6
2
● Connect the bracket
● Bracket
(unit: mm)

B-36
BF4 Series
● Standard type (BF4R/BF4RP/BF4G/BF4GP)
External input sensitivity setting type (BF4 -R)
● External synchronization input type (BF4 -E)
Installations
Unit Description
Tightening torque:
Max. 0.198N.m
L bracket
Fixing nut
※Notice: If setting bolt is tightened with over
specified tightening torque, hood of
fiber optic cable may be damaged.
Connection of fiber optic cable & amplifier
● In case of using L bracket ● In case of using screw
Mounting amplifier unit
Hook the front part of the amplier on DIN rail. Press the
rear part of the amplier on DIN rail.
Push the back of amplier toward ① and lift the hole for
ber toward ② up then simply take it out without tools.
Installation of fiber optic cable
Lift up the protective cover to the ① direction to release
the lock setting.
Insert the cable to the ② direction and adhere between
the cable and the inside of the amplier unit.
(insert depth: approx. 10mm)
Place up the lock lever to ③ direction to lock the lock
setting and close the protective cover.
[Mounting] [Removing]
②①
②
①
③
1
6
2
3
4
5
1. Control output indicator (red): Turns ON or OFF by control output status.
2. Stability indicator (green): Turns ON at stable light ON/OFF level.
3. Mode setting switch - SET: Set the switch to [SET] to use set the function.
- LOCK: Set the switch to [LOCK] not to set the function.
4. Timer setting switch (standard type, external input sensitivity setting type)
- NON: Set the switch to [NON] not to use timer function.
- OFD: Set the switch to [OFD] to use OFF Delay timer function.
External synchronization setting switch (external synchronization input type)
- GATE: Set the switch to [GATE] to use external synchronization as gate synchronization.
- TRIG: Set the switch to [TRIG] to use external synchronization as trigger synchronization.
5. Sensitivity setting button: Used for sensitivity setting
6. Lock lever: Used for connecting ber optic cable.

B-37
Fiber Optic Amplier
(A)
Photoelectric
Sensors
(B)
Fiber
Optic
Sensors
(C)
Door/Area
Sensors
(D)
Proximity
Sensors
(E)
Pressure
Sensors
(F)
Rotary
Encoders
(G)
Connectors/
Connector Cables/
Sensor Distribution
Boxes/ Sockets
(H)
Temperature
Controllers
(I)
SSRs / Power
Controllers
(J)
Counters
(K)
Timers
(L)
Panel
Meters
(M)
Tacho /
Speed / Pulse
Meters
(N)
Display
Units
(O)
Sensor
Controllers
(P)
Switching
Mode Power
Supplies
(Q)
Stepper Motors
& Drivers
& Controllers
(R)
Graphic/
Logic
Panels
(S)
Field
Network
Devices
(T)
Software
※When the power is OFF, the set sensitivity is saved.
Change the mode setting switch to [SET]
Sensitivity setting Set/Relase the interference prevention function
Press [ON]+[OFF] at the same time for 2 sec.
The stability indicator [STAB] flashes continuously
Set the mode setting switch to [LOCK]. (completes setting)
The stability indicator
[STAB] turns OFF
Set the interference
prevention function
Light ON Dark ON
Frequency 1 Frequency 2
Press the [ON]
button
(Frequency 1,
response time
: max. 0.5ms)
Press the [OFF]
button
(Frequency 2,
response time
: max. 0.7ms)
Press the [ON]
button at light ON
The stability indicator [STAB] flashes once
when the difference of sensitivity between
ON and OFF is enough. (flashes 5 times
when the difference is not enough)
Press the [OFF]
button at light ON
Press the [OFF]
button at light OFF
Press the [ON]
button at light OFF
SET
LOCK
SET
LOCK
Sensitivity Adjustment
Adjustment by the sensitivity setting button (common)
● Light ON
The control output turns on at Light ON status and turns off
at Light OFF status.
Before sensitivity setting, install the ber optic cable.
After completing the setting, do not move or bend the ber optic cable. If not, it may cause incorrect detection.
Mode Setting
● Dark ON
The control output turns off at Light ON status and turns on
at Light OFF status.
<How to set sensitivity>
The setting order are same as Light ON mode except ③ &
⑤. The ③ & ⑤ order is opposite from Light ON.
- ③ state
Diffuse reective: Press the [ON] button without a sensing target.
Through-beam: Press the [ON] button with a sensing target.
- ⑤ state
Diffuse reective: Press the [OFF] button with a sensing target.
Through-beam: Press the [OFF] button without a sensing target.
Order Setting method
①Mount the ber optic cable within sensing distance.
②Change the mode setting switch to [SET].
③
Diffuse reective: Press the [ON] button with a sensing target.
Through-beam: Press the [ON] button without a sensing target.
④The stability indicator [STAB] (green) ashes
at ON state. (check the target position)
⑤
Diffuse reective: Press the [OFF] button without a sensing target.
Through-beam: Press the [OFF] button with a sensing target.
⑥
• When there is enough sensitivity difference between ON state
and OFF state, the stability indicator [STAB] ashes one time
only at stable sensing level.
• When there is not enough sensitivity difference between ON
state and OFF state, the stability indicator [STAB] ashes ve
times at unstable sensing level.
※The sensitivity can be set at unstable sensing area.
⑦
Change the mode selection switch to [LOCK] to
x the set sensitivity. Even though the sensitivity
setting button is touched, setting sensitivity shall
not be changed.
Light ON
<Through- beam>
Light ON
Mark
(Low reflectance)
Background
(High
reflectance)
<Diffuse reflective >
Light OFF
Light OFF
Background
(High
reflectance)
Mark(Low
reflectance)
<Diffuse reflective > <Through- beam>
Light OFF
Light OFF
Background
(High
reflectance)
<Through- beam>
<Diffuse reflective >
Mark (Low
reflectance)
Light ON
Light ON
Background
(High
reflectance)
Mark (Low
reflectance)
<Diffuse reflective > <Through- beam>

B-38
BF4 Series
Setting as max. sensitivity (common)
① Set the mode setting switch to [SET].
② If there is no sensing target,
- Light ON: Press the [ON → OFF] button
- Dark ON: Press the [OFF → ON] button
③ Set the mode selection switch to [LOCK] mode.
※External sensitivity setting
- Light ON (From above ③)
External sensitivity setting ON input (High→Low→High)
External sensitivity setting OFF input (High→Low→High)
- Dark ON Mode (From above ③)
External sensitivity setting OFF input
(High→Low→High)
External sensitivity setting ON input (High→Low→High)
< Application >
● To extend sensing distance (diffuse reective type):
If ber optic sensor is used in place where there are
targets with high reectivity and low reectivity, it is able
to get stable detection by adjusting max. sensitivity.
● Used at bad environment (through-beam type):
If ber optic sensor is used in place where there is lots of
dust or moisture, it might cause malfunction.
It can perform the stable detection by using max.
sensitivity.
External input sensitivity setting type
[BF4 -R]
External input sensitivity setting type, BF4 -R can adjust
the sensitivity with input signal lines without the mode
setting switch.
●Light ON
- ON input of remote sensitivity setting (SW1):
Turns ON the SW1 and then turn OFF instead of ③ state
of adjustment by the sensitivity setting button.
- OFF input of remote sensitivity setting (SW2):
Turns on the SW2 and then turn OFF instead of ⑤ state
of adjustment by the sensitivity setting button.
● Dark ON
- OFF input of remote sensitivity setting (SW2):
Turns on the SW2 and then turn OFF instead of ③ state
of adjustment by the sensitivity setting button.
- ON input of remote sensitivity setting (SW1):
Turns on the SW1 and then turn OFF instead of ⑤ state
of adjustment by the sensitivity setting button.
Power
supply
Remote
sensitivity
setting
ON input
Remote
sensitivity
setting
OFF input
Self-
diagnosis
output
(Answer
back
function)
Sensing
output
ON
OFF
High
(OFF)
Low
(ON)
T1 T2
High
(OFF)
Low
(ON)
ON
OFF
T5 T2
T3※T3※
T4 T4
Detectable
<External sensitivity setting input signal condition>
※Input impedance:10kΩ
State Signal condition
High 4.5-30VDC or Open
Low 0-1VDC
※ During period T3 (approx. 300ms), do not change the
received light value by moving the object, etc.
● T1≥1,000ms : after power turns ON, it can be set after 1sec.
● T2≥5ms : ON/OFF input time of remote sensitivity setting
must be min. 5ms
● T3≒300ms : when ON/OFF input of remote sensitivity
setting is applied, self-diagnosis output turns ON after
300ms)
● T4≒40ms : ON time of self-diagnosis output
● T5≥500ms : when ON input of remote sensitivity setting
is applied, apply OFF input of remote sensitivity setting
after 500ms
<Time Chart: Light ON mode >
Self-diagnosis output (answer back)
function [BF4 -R]
When ON or OFF input of remote sensitivity setting is
applied, after 300ms, self-diagnosis output turns on for
40ms and then the sensor keeps normal sensing state.
(Note: Time chart)
※Self-diagnosis output does not turn on if there is no
difference of sensitivity between ON input and OFF input
and stable sensing is not executed, but stable sensing
operates after 340ms.
Prohibition of inputting External
sensitivity setting [BF4 -R]
Even though mode switch is at Lock position, it is able to
input external sensitivity setting when Switch 1 and Switch
2 are ON. Therefore please install Switch 3 in order to
prevent from malfunction as below.
※SW3 - OFF: Disable to set external sensitivity
※SW3 - ON: Enable to set external sensitivity
Switch for prohibiting sensitivity setting
(Pink)ON input of remote sensitivity setting
(Orange)OFF input of remote
sensitivity setting
(Blue)0V
(Brown) +V
(Black) Control output
(White) Self-diagnosis output
S/W3
S/W2 S/W1
(pink) ON input of remote sensitivity setting
(orange) OFF input of remote
sensitivity setting
(blue) 0V
(black) Control output
(white) Self-diagnosis output
S/W2 S/W1
(brown) +V

B-39
Fiber Optic Amplier
(A)
Photoelectric
Sensors
(B)
Fiber
Optic
Sensors
(C)
Door/Area
Sensors
(D)
Proximity
Sensors
(E)
Pressure
Sensors
(F)
Rotary
Encoders
(G)
Connectors/
Connector Cables/
Sensor Distribution
Boxes/ Sockets
(H)
Temperature
Controllers
(I)
SSRs / Power
Controllers
(J)
Counters
(K)
Timers
(L)
Panel
Meters
(M)
Tacho /
Speed / Pulse
Meters
(N)
Display
Units
(O)
Sensor
Controllers
(P)
Switching
Mode Power
Supplies
(Q)
Stepper Motors
& Drivers
& Controllers
(R)
Graphic/
Logic
Panels
(S)
Field
Network
Devices
(T)
Software
Standard type and External input sensitivity setting type
both contain the built-in OFF Delay timer, approx. 40ms.
The timer works when the timer selection switch is set to
[OFD].
The output turns off after remaining for additional 40ms at
OFF position of the sensing output. It is useful when the
response time of the connected device is slow or when the
sensing signal from a tiny object is too short.
External Synchronization Input
Function [BF4R -E]
By using external synchronization function, the time
for making sensing can be specified by external
synchronization. (trigger synchronization and gate
synchronization)
State Signal condition
High 4.5-30VDC or Open
Low 0-1VDC
State Signal condition
High 4.5-30VDC or Open
Low 0-1VDC
Timer (OFF Delay) Function
[BF4R/BF4G/BF4RP/BF4GP/BF4 -R]
Stop Transmission Function
[BF4 -E]-Operation Test
This function is available under light ON state only and it is
for checking normal state of the sensor.
<Input signal condition for External synchronization>
<Input signal condition for Stop transmission>
※1: Right before transfer detection signal of the sensor as
control output.
※T≥0.5ms (using interference prevention function: T≥0.7ms)
※①: Transmission area, ②: Stop transmission area
※1: If transmission is stopped, control output must turn
on, but if control output does not turn on, it seems that
sensor has some problems.
※T≥0.5ms
(when using interference prevention function T≥0.7ms)
[If input of stop transmission is at High or Open state,
light is transmitted.]
[If input of stop transmission is at Low, light is transmitted.]
High
(OFF)
Low
(ON)
Input of stop
transmission
Sensing output
(If it is in ON
state when light
is not received)
T T T
① ① ①①
② ② ②
Normal Abnormal
※1
ON
OFF
※Control output is fixed
as 40ms.
Trigger synchronization Gate synchronization
Sensing
signal※1
External
synchroni-
zation
input
Control
output
External
synchroni-
zation
selection
switch
Approx. 40ms
High
Low
High
Low
ON
OFF
ON
OFF
ON
OFF
ON
OFF
T T
: GATE
: TRIG
Timer
selection
switch
Light
ON
Dark
ON
Light
ON
Dark
ON
ON
OFF
ON
OFF
ON
OFF
ON
OFF
T T T
T
Sensing
Non-
Sensing
<Time Chart> T≒40㎳
Sensing
state
Output
operation
Normal
Timer
(orange) Input of stop transmission
(blue) 0V
High or
Open
(orange) Input of stop transmission
(blue) 0V
Low

B-40
BF4 Series
Mutual Interference Prevention
Function (common)
Two fiber optic cables can be mounted very closely by
setting different transmission frequencies.
●Interference prevention function
(operation of differential frequency mode)
Self-Diagnosis Function (common)
When fiber hood is contaminated by dust, transmitted
light is lowered by element ability loss or received light is
lowered by missing of optical axis, the self-diagnosis output
will turn on.
● When detecting state remains over 300ms at unstable light
ON/OFF level, the self diagnosis output turns ON. In case
of stable light ON/OFF level, the self diagnosis output turns
OFF. (① position)
In case of Light ON
Stability
indicator
(green LED)
Self-diagnosis
output
Control output
indicator
(red LED)
Stable light
ON level
Unstable light
ON level
Unstable light
OFF level
Operation
level
Stable light
OFF level
Light
received
300ms
①
300ms
ON
OFF
ON
OFF
ON
OFF
H
L
①
First sensor- Frequency 1 (response time: max. 0.5ms)
Second sensor- Frequency 2 (response time: max. 0.7ms)
⑥ Set the mode setting switch to [LOCK].
① Set the mode setting switch to [SET].
② Press the [ON] + [OFF] buttons for
2 sec at the same time.
③ The Stability indicator [STAB] flashes
continuously.
④Press the [ON] button.
⑤ The Stability indicator [STAB] turns off.
⑥ Set the mode setting switch to [LOCK].
① Set the mode setting switch to [SET].
② Press the [ON] + [OFF] buttons for
2 sec at the same time.
③ The Stability indicator [STAB] flashes
continuously.
④Press the [OFF] button.
⑤ The Stability indicator [STAB] turns off.
Flashing
Flashing