Autonics BF4R Manual de instruções - Página 6

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Autonics BF4R Manual de instruções

OFF Delay timer function

(BF4R/BF4RP/BF4R-R/BF4G/BF4GP/BF4G-R)
Standard type and Remote sensitivity setting type both
contain a built-in approx. 40ms fixed OFF Delay timer. The
timer works when the timer selection switch is set to 'OFD'.
The output is turned off after remaining on 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.
<Time Chart>
Sensing
Sensing
state
Non-
Output
Sensing
operation
ON
Light
ON
OFF
ON
Dark
ON
OFF
T
Light
ON
ON
OFF
T
ON
Dark
ON
OFF
External synchronization input
function [BF4R(G)-E]
By using external synchronization function, the time
for making sensing can be specified by external
synchronization. Trigger synchronization and gate
synchronization are available.
Trigger synchronization
(Note)
ON
Sensing
OFF
signal
External
T
synchroni-
High
zation
Low
input
Approx. 40ms
ON
Control
output
OFF
※ Control output is fixed
as 40ms.
External
synchroni-
zation
TRIG
selection
switch
※ T≥0.5ms
(using interference prevention function: T≥0.7ms)
※ (Note) Actual signal detected by sensor.
<Input signal condition for External synchronization>
State
Signal condition
High
4.5-30VDC or Open
Low
0-1VDC
T≒40㎳
Timer
selection
switch
T
T
Gate synchronization
ON
OFF
T
High
Low
ON
OFF
GATE
Fiber Optic Amplifier
Stop transmission function
[BF4R(G)-E]-Operation test
● Below test is available under Light ON state only.
● If input of stop transmission is at Low state, transmission
light will be stopped.
● It can check normal or abnormal state of the sensor
without moving the target.
(Orange)Input of stop transmission
(Blue)0V
[If input of stop transmission is at High or Open state,
light is transmitted.]
(Orange)Input of stop transmission
(Blue)0V
[If input of stop transmission is at Low, light is transmitted.]
①
High
Input of stop
(OFF)
transmission
Low
(ON)
Sensing output
ON
(If it is in ON
OFF
state when light
is not received)
※ ①: Transmission area, ②: Stop transmission area
※ (Note1) 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)
<Input signal condition for Stop transmission>
State
Signal condition
High
4.5-30VDC or Open
Low
0-1VDC
High or
Open
Low
①
①
①
②
②
②
T
T
T
(Note1)
Normal
Abnormal
B-35
(A)
Photo
electric
sensor
(B)
Fiber
optic
sensor
(C)
Door/Area
sensor
(D)
Proximity
sensor
(E)
Pressure
sensor
(F)
Rotary
encoder
(G)
Connector/
Socket
(H)
Temp.
controller
(I)
SSR/
Power
controller
(J)
Counter
(K)
Timer
(L)
Panel
meter
(M)
Tacho/
Speed/ Pulse
meter
(N)
Display
unit
(O)
Sensor
controller
(P)
Switching
mode power
supply
(Q)
Stepper
motor&
Driver&Controller
(R)
Graphic/
Logic
panel
(S)
Field
network
device
(T)
Software
(U)
Other