Auto Tuning Setting Type

Convenient mounting, Fiber optic sensor

(A)
▣Features Counter

lHigh speed response : Under 0.5ms

lAuto sensitivity setting(Button setting) /
(B)
Remote sensitivity setting. Timer
lExternal synchronization input function, Mutual
interference protection, Self diagnosis function.
lOver current protection and Reverse power (C)
Temp.
polarity protection. controlle
lTimer function built in : OFF Delay approx. 40ms fixed.
(Standard Type, Remote sensitivity setting type only)
lAutomatically selectable Light ON / Dark ON mode. (D)
Power
lAble to detect small targets and mount to tiny place controlle

Please read "Caution for your safety" in operation

! manual before using.
(E)
Panel
meter
▣Specifications
E xt ernal s ynchr onization Remote s ensitivit y
S tandard type (F)
Model input type setting type
Tacho/
BF 4RP BF 4R BF4R-E BF4R-R Speed/
Pulse
Response Frequency Max. 0.5ms(FREQ .1), Max. 0.7m s(FREQ.2)
meter
Power voltage 12-24VD C ± 10%, Ripple P-P:Max. 10%
Current consumption Max. 45mA
Light s ource Red L ED(Modulated) (G)
Display
Sensitivity adjustment S electable sensitivity adj ustment button unit
Operation mode S electa ble sensitivity in front of this unit with ON/OFF button
PNP OU C o utpu t NPN OU C o utpu t
Load current:Max. 100mA
Control output L oad current:Max. 100mA, Applied voltage:Max. 30V DC (H)
Applied voltage:Max. 30VDC Sensor
Residual volta ge:Ma x. 1V(at 100mA load current),
Output voltage: Min. power controlle
Max. 0.4V(at 16mA load current)
supply -2.5V
ON state under unstable sensing(When the target stays for 300m s in uns table a rea ),
ON state when control output short-circ uited
(I)
Load current:Max. 50mA Proximit
Self-diagnosis out put Applied voltage:Max. 30VDC L oad current:Max. 50mA, Applied voltage:Max. 30VDC
sensor
Residual volta ge:Ma x. 1V(at 50mA load current),
Output voltage:Min. power
Max. 0.4V(at 16mA load current)
supply -2.5V
Pr otection cir cuit Short-circ uit protection, Reverse pola rity protection circuit (J)
Indicatior Operation indicator:Red LED, S table indicator:Green L ED flickers when the target stays in stable sensing area Photo
electri c
Emis sion disable sensor
Built in
input funct ion
External synchroni-
Built in(Gate/Trigger)
zat ion function (K)
Remote sensitivit y Pressur
setting function Built in sensor

Inter ference
prevention function Built-in(S electa ble FREQ.1 or F REQ.2 by ON/OFF button)
(L)
Timer function OFF delay tim er
O FF delay timer(Approx. 40ms fixed) Rotary
(Select able) (Approx. 40ms fixed) encoder
Insulation r esistance Min. 20MΩ(at 500VDC)
Ambient illumination S unlight : Max. 11,000 , Incandescent la mp : Max. 3,000
(M)
Noise strength ± 240V the square wave noise(pulse width:1㎲ ) by the noise simulator 5-Phase
stepping
Dielectric st rength 1,000VAC 50/60Hz for 1 minute motor &
Vibr ation 1.5mm am plitude at frequency of 10 ~ 55Hz in each of X, Y, Z directions for 2 hours Driver &
Controlle
Shock 500m /s ²(50G) in X, Y, Z direction for 3 times
Operating t emperature -10 ~ +50℃ (at non-freezing status)
St or age temperat ure -20 ~ +70℃
Ambient humidity 35 ~ 85%RH
Material Case : Heat-resistant ABS, Case cover : P olycarbonate
Cable ø 4, 4P, Length : 2m ø 4, 6P, Length : 2m
Approval
Weight Approx. 65g

J-48
BF4R Series
▣Control output diagram
BF4R BF4 RP
Fiber optic sensor circuit Connection Fiber optic sensor circuit Connection
(Brown)+V (Brown)+V
Max. 100mA
Load ※
(Black)Control output
(Black)Control output
Load ※ Max. 50mA +
+ (White) 12-24VDC
Max. 100mA 12-24VDC Self-diagnosis -
- Load ※
(White)Self-diagnosis output
output Load ※

Max. 50mA (Blue)0V

(Blue)0V

BF4R-E BF4 R-R

Fiber optic sensor circuit Connection Fiber optic sensor circuit Connection

(Brown)+V (Brown)+V

Exte rnal
ON inpu t of remote
synch ronization
se nsitivity se tting
input
(Pink) (Pink)
Load ※ OFF input of Load ※
Emission remote sensitivity
disable input ※ se tting ※
(Orange) Load (Orange) Load
+ +
12-24V 12-24V
- DC - DC
(Black) (Black)
Control output Control output

(White)Self- Max. 100mA (White)Self- Max. 100mA

diagnosis output diagnosis output

Max. 50mA Max. 50mA

(Blue)0V (Blue)0V

※Connect Diode at external terminal for inductive load.

▣Connections
lBF4R lBF4RP

(Brown)+V (Brown)+V
(Black)Control output
Load
(Black)Control output Load + +
(White)Self-diagnosis output
12-24VDC 12-24VDC
(White)Self-diagnosis output - -
Load
Load
(Blue)0V (Blue)0V

lBF4R-E lBF4R-R

(Br own)+V (Brown)+V

(Pink)External s ynchronization (Pink)ON input of remote

input sensit ivity sett ing
(Orange)Emission disable Load (Orange)OFF input of remote Load
input sensitivity setting
Load + Load +
12-24VDC (Black)Control output 12-24VDC
(Black)Control output
- -
(White)S elf-diagnosis output (White)S elf-diagnosis out put
(Blue)0V (Blue)0V

J-49
 Auto Tuning Setting Type
▣Dimensions Unit:mm
(A)
lProduct Counter

(B)
Timer

12 62 4

(C)
Temp.
controlle

(D)
Power
controlle
16.4 36.5

(E)
Panel
meter

lBracket lBracket
(F)
Tacho/
Speed/
Pulse
meter

12 62 4
(G)
Display
R1.6
16 unit

35 12
14 1 (H)
2 Sensor
controlle

35mm DIN Rail useable 27

26.9 (I)
14
Proximit
sensor

(J)
▣Panel identification Photo
electri c
sensor

◎Standard type / ◎External synchronization input type

Remote sensitivity setting type(BF4R-R)
(K)
Pressur
lBF4R, BF4RP/BF4R-R lBF4R-E sensor

OUT Control output indicator(Red) OUT Control output indicator(Red)

STAB
Stable indicator(Green)
STAB Stable indicator(Green)
(L)
Rotary
SET
Mode selection switch B SET
Mode selection switch encoder
B LOCK F LOCK

F 4
Timer selection switch R External synchronization
4
R NON
NON:Not use timer function
TRIG selection switch (M)
OFD
{ OFD:OFF Delay timer
E GATE

{ TRIG:Trigger synchronization
5-Phase
stepping
motor &
GATE:Gate synchronization Driver &
ON Controlle
ON

Sensitivity setting button Sensitivity setting button

OFF
OFF

J-50
BF4R Series
▣Sensitivity adjustment
◎Ad just ment b y the sensitivity set tin g ◎In case of setting as max. sensitivity
button(All models) ①Set the mode selection switch to [SET] mode.
②In case of Light ON mode : Press ON/OFF button
lLight ON Mode
from ON to OFF without the detecting target.
: The control output turns on at state(Received
(Or set ON input for remote sensitivity setting to
light) and turns off at State(Interrupted light).
Low le vel, and then set OFF input for rem ote
Order Setting method sensitivity setting to Low level)
① Mount the fiber optic cable within detecting distance. In case of Dark ON mode : Press ON/OFF button
SE T
from OFF to ON without the detecting target.
② Change the mode selection switch to [SET]. B
LO CK
(Or set OFF input for rem ote sensitivity setting to
F

Diffuse reflective:Press [ON] button with the detecting target

Low lev el, and th en set O N input for remo te
in place. sensitivity setting to Low level)
Through-beam:Press [ON] button without the detecting target. ③Set the mode selection switch to [LOCK] mode.
<Through-beam > <Diffuse reflective >
D e te ctin g m ar k ※Extern al sensitivity setting
③ (a little re flec ta n ce ) ON
lLight ON Mode(From above ③)
8 Background OFF
External sensitivity setting ON input(High→Low→High),
(much
Rece ived light reflectance) External sensitivity setting OFF input(High→Low→High)
Re ceived ligh t
lDark ON Mode(From above ③)
The stable indicator flickers at ON state. OUT External sensitivity setting OFF input
④ (High→Low→High),
(Check the target position) STAB
External sensitivity setting ON input
Diffuse reflective:Press [OFF] button with the detecting target
removed. (High→Low → High)
Through-beam:Press [OFF] button with the detecting target
in place. <Application >
<Through-beam > <Diffuse reflective > lIn case of extend detecting distance as the diffusive
⑤ De tec tin g
reflection type :
ma rk( a little ON
re fle c tan ce )
Ba c kg rou n d If using one fiber optic sensor in place where there
( m uc h
re fle c tan ce )
O FF
are targets with high reflectivity and low reflectivity,
Interrupte d light Inte rru pted ligh t
able to get stable detection by adjusting max.
U When there is enough sensitivity difference between ON state sensitivity.
and OFF state, the STAB indicator flickers one time only at lIn case of using the through-beam type at bad
stable sensing area. environment :
⑥ U When there is not enough sensitivity difference between ON
state and OFF state, the STAB indicator flickers five times at If using fiber optic sensor in place where there is lots
unstable sensing area. (Note) of dust or moisture it might cause malfunction.
Change the mode selection switch to [LOCK], even Please max. sensitivity then it can perform stable
⑦ though somebody touches the sensitivity setting SET
detection.
B
button, setting sensitivity shall not be changed. F
LOCK

(Note) The sensitivity can be set at unstable detecting area. ◎Remote adjustment of sensitivity(BF4R-R)
B F4R-R t ype can adjust the sens itivity with
lDark ON Mode
inputsignal lines regardless of the mode selection
: The control output turns off at State(Received
switch as following diagram;
light) and turns on at State(Interrupted light).
(Brown) +V
<How to set sensitivity >
Most of adjustments except ③ & ⑤ are same as Light (Black) Control output
ON mode. (White) Self-diagnosis output

e # state (Pink)ON input of remote sensitivity setting

U Diffuse reflective : Press [ON] button without the (Orange)OFF input of remote
detecting target. sensitivity set ting
U Through-beam : Press [ON] button with the
detecting target. SW2 SW1
(Blue)0V
<Through-beam> <Diffuse reflective>
Detecting
mark(a little ON ①SW1(ON input of remote sensitivity setting) :
reflectance) Background SW1 turns on and then turns off instead of ③ method
(much
by the sensitivity setting button.
O FF

reflectance)
Interrupte d light Inte rrupted ligh t
②SW2(OFF input of remote sensitivity setting) :
e % state SW2 turns on and then turns off instead of ⑤ method
U Diffuse reflective : Press [OFF]button with the by the sensitivity setting button.
detecting target.
U Through-beam : Press [OFF]button without the <External sensitivity setting input signal condition>
detecting target. State Signal condition
<Through-beam> <Diffuse reflective> High 4.5-30VDC or OPEN
Detecting
mark(a little ON
Low 0-1VDC
reflectance)
Background
8 (much O FF *Input impedance:10kΩ
Interrupte d light Inte rrupted ligh t reflectance)

J-51
 Auto Tuning Setting Type
◎External sensitivity setting input prohibition ▣OFF Delay timer function
(BF4R-R)
(BF4R/BF4RP/BF4R-R only) (A)
Counter
Even though mode swit ch is at Lock position,
Standard type(BF4R/BF4RP) and Remote sensitivity
External sensitivity setting input is possible when
setting type(BF4R-R) both contain a built-in approx.
SW1 and SW2 are ON. Therefore please install SW3
40ms fixed OFF-delay timer. The timer works when
in order to prevent sfrom malfunction as below. (B)
the timer selection switch is set to 'OFD'.
*SW3 - OFF : Disable to set external sensitivity Timer
The output turns off after remaining on for additional
*SW3 - ON : Enable to set external sensitivity
40ms at OFF position of the sensing output.
(Brown)+V
It is useful when the response time of the connected (C)
(Black)Control output device is slow or when the sensing signal from a Temp.
(White)Self-diagnosis output controlle
tiny object is too short.
(Pink)ON input of remote sensitivity setting
<Time chart> T≒40ms
(Orange)OFF input of remote sensitivity setting
Sensing Detecting Timer (D)
state
Output Non- selection Power
SW3 detecting switch controlle
operation
(Blue)0V

SW2
Light ON
SW1 LOCK
ON OFF B (E)
F Panel
◎Answer Back function(BF4R-R only) 4 meter
R NON

When ON or OFF input of remote sensitivity setting Dark ON

OF D

is applied, after 300ms, self-diagnosis output turns ON OFF

(F)
on for 40ms and then the sensor keeps normal Tacho/
T T T Speed/
detecting state. (Note:Time chart) Light ON LOCK Pulse
B
meter
*Self-diagnosis output does not turn on if there is ON OFF F
4
no difference of sensitivity between ON input and R NON

T
OFF input and stable sensing is not executed, but Dark OF D (G)
ON Display
stable sensing operates after 340ms. ON OFF unit

<Time Chart : Light ON Mode >

ON
▣External synchronization input
Power supply function(BF4R-E) (H)
Sensor
OFF
controlle
By using external synchronization function, the
Remot e T1 T2
sensitivity
HIGH time for making detection can be specified by
(OFF)
setting External synchronization. Trigger synchronization
LOW (I)
ON input (ON) and gate synchronization are available. Proximit
sensor
Remote T5 T2
HIGH
sensitivit y Trigger synchronization Gate synchronization
(OFF)
sett ing
LOW (Note) (J)
OFF input ON ON
(ON) Photo
Detecting OFF OFF electri c
Self- T3 T3 signal
sensor
diagnosis ON ※ External T T
output ※ synchroni
(Answer back HIGH HIGH
OFF -zation
funct ion) LOW LOW (K)
T4 T4 input Pressur
sensor
Detection Sensing 40ms
ON Approx. ON
output possible
Control OFF OFF
out put ※Output for differential
※During period T3(Approx. 300ms), do not change (L)
synchronization is fixed Rotary
the received light value by moving the object, etc. as 40ms. encoder
1. T1≥1,000ms (After the power turns on, it can be L OCK L OCK
Exter nal B B
set after 1sec.) synchroni F F (M)
4 4 5-Phase
-zat ion TRIG GATE
2. T2≥5ms (ON or OFF input time of remote sensitivity R TRIG R TRIG
stepping
selection motor &
setting must be min. 5mS) switch E GATE E G ATE Driver &
Controlle
3. T3≒300ms (When ON or OFF input of remote
※T≥0.5ms(When using interference prevention function
sensitivity setting is applied, self-diagnosis output : T≥0.7ms)
turns on after 300ms) (Note)Actual signal detected by sensor.
4. T4≒40ms(ON time of self-diagnosis output) <Input signal condition for External synchronization >
5. T5≥500ms(When ON input of remote sensitivity State Signal condition
setting is applied and then apply OFF input of High 4.5-30VDC or Open
remote sensitivity setting after 500ms) Low 0-1VDC

J-52
BF4R Series
▣Emission disable function(BF4R-E) ▣Interference prevention function
-Operation Test (All models)
lBelow test is available under Light ON state only. BF4R series have a built-in interference prevention
lIf Emission disable input is at Low state, Emission function, two fiber optic cables can be mounted very
light will be disabled. closely by setting different emission frequencies.
lIt can check normal or abnormal state of the sensor
lInterference prevention function
without moving the target.
(Operation of dual frequency mode)
First sensor-F REQ.1(Respo nse time:Max. 0.5ms)
(Orange)Emission disable input

High or ①Set the mode selection switch to [SET].

SET
(Blue)0V Open
B
[ If Emission disable input is at High or Open state, F LOCK
Emission light operates ] 4
②Press [ON] & [OFF] buttons for 2sec. at the same time.
③The [STAB] indicator flickers continuously.
(Orange)Emission ④Press [ON] button
disable input ⑤The [STAB] indicator turns off.
Low
(Blue) 0V
[ If Emission disable input is at Low state,
Emission light is disabled ] ON ON

High(OFF)
① ① ① ① OUT OU T
Emission
disable input STAB STAB
Low(ON)
② ② ② OF F OF F

T T T Flickering Light off

Sensing output
(If it is in ON ON
state when light
(Note1) ⑥Set the mode selection switch to [LOCk].
OFF
is not received) SET

Normal B
Abnor mal F LOCK
※① : Emission area, ② : Emission stopped area 4
※(Note1)If Emission stops, control output must turn on,
Second sensor-FREQ.2(Respon se time:Max. 0.7ms)
but if control output does not turn on, it seems
that sensor has some problems. ①Set the mode selection switch to [SET].
※T≥0.5ms SET
B
(When using interference prevention function T≥0.7ms) F LOCK
※Emission disable input High: 4.5-30VDC or Open 4
Low : 0-1VDC ②Press [ON] & [OFF] buttons for 2sec. at the same time.
③The [STAB] indicator flickers continuously.
▣Self-diagnosis function(All models) ④Press [OFF] button
When fiber tip is covered with dust, there will be ⑤The [STAB] indicator turns off.
reduction in emitted or received light which will cause
the self-diagnosis output to turn on.
※Light ON mode
ON ON
Outer of Move to
M ove to Outer of OUT OUT
unstable a rea unstable a rea unstable a rea
Interrupted unstable a rea
R eceived ligh t OF F
STAB OF F
STAB
light incomplete
incomplete
Sta ble light Flickering
received level
Light off
Sensing Sensing ou tput
condition operation level ⑥Set the mode selection switch to [LOCk].
Stable SET
Inte rrupted B
light leve l
F LOCK
Stability ON
indicator 4
OFF
Control
outpu t
indic ator
L ight ON lInterference prevention function(Operation of
Light OFF
(OUT )
300ms @ 300ms normal mode)
@ ON
Self-
! ! ①Set the mode selection switch to [SET].
dia gnosis OFF
outpu t(Alarm)
②Press [ON] & [OFF] buttons fo r 2 sec. at the same
①The self-diagnosis output turns off during stable sensing. time.
(① position) ③The stable indicator flickers co ntinuously.
②When detecting state remains for 300ms at unstable area ④Press [ON] & [OFF] buttons at the same time.
between stable interrupted light level and stable received ⑤The [STAB] in dicator turns off.
light level, self-diagnosis output turns on, self-diagnosis ⑥Set the mode selection switch to [LOCK].
output turns off at lower than stable interrupted light level ※In case of using interference prevention functio n,
and upper than stable received light level. (② position) hysteresis & resp on se time will b e l ong er than
③When the control output turns on, if an over-current normal operation(respinse time:Max. 0.5ms).
condition exists in control output, then self-diagnosis
output turns on.

J-53