Autonics BF4R Manual de instruções - Página 5

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BF4 Series

To set as max. sensitivity(Common)

① Execute the general sensitivity setting.

② Set the mode selection switch to [SET] mode.

③ If there is no sensing target,

- Light ON: Press the [ON → OFF] button

- Dark ON: Press the [OFF → ON] button

④ 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 by the diffuse reflective type:

If fiber optic sensor is used in place where there are

targets with high reflectivity and low reflectivity, it is able

to get stable detection by adjusting max. sensitivity.

● When it is used as transmitted beam type at bad

environment :

If fiber optic sensor is used in place where there is lots of

dust or moisture, it might cause malfunction.

Please max. sensitivity then it can perform stable

detection.

Remote sensitivity adjustment[BF4R(G)-R]

BF4R-R/BF4G-R type can adjust the sensitivity with input

signal lines regardless of the mode selection switch as

following diagram ;

(Brown) +V

(Black) Control output

(White) Self-diagnosis output

(Pink)ON input of remote sensitivity setting

(Orange)OFF input of remote

(Blue)0V

① Adjustment at Light ON

● ON input of remote sensitivity setting(SW1) :

SW1 turns on and then turns off instead of ③ state of

adjustment by the sensitivity setting button.

● OFF input of remote sensitivity setting(SW2) :

SW2 turns on and then turns off instead of ⑤ state of

adjustment by the sensitivity setting button.

② Adjustment at Dark ON

● OFF input of remote sensitivity setting(SW2) :

SW2 turns on and then turns off instead of ③ state of

adjustment by the sensitivity setting button.

● ON input of remote sensitivity setting(SW1) :

SW1 turns on and then turns off instead of ⑤ state of

adjustment by the sensitivity setting button.

State

Signal condition

High

4.5-30VDC or Open

Low

0-1VDC

*Input impedance:10kΩ

B-34

sensitivity setting

S/W2

S/W1

Prohibition of inputting External

sensitivity setting[BF4R(G)-R]

Even though mode switch is at Lock position, it is able to

input external sensitivity setting when Switch1 and Switch 2

are ON. Therefore please install Switch3 in order to prevent

from malfunction as below.

※ SW3 - OFF : Disable to set external sensitivity

※ SW3 - ON : Enable to set external sensitivity

(Brown) +V

(Black) Control output

(White) Self-diagnosis output

(Pink)ON input of remote sensitivity setting

(Orange)OFF input of remote

(Blue)0V

Switch for prohibiting sensitivity setting

Answer Back function[BF4R(G)-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.

Power

supply

OFF

Remote

High

sensitivity

(OFF)

setting

Low

ON input

(ON)

Remote

High

sensitivity

(OFF)

setting

Low

OFF input

(ON)

Self-

diagnosis

output

(Answer

OFF

back

function)

Sensing

output

※ During period T3(Approx. 300ms), do not change the

light ON value by moving the object, etc.

1. T1≥1,000ms (After power turns on, it can be set after

1sec.)

2. T2≥5ms (ON or OFF input time of remote sensitivity

setting must be min. 5ms)

3. T3≒300ms (When ON or OFF input of remote sensitivity

setting is applied, self-diagnosis output turns on after

300ms)

4. T4≒40ms (ON time of self-diagnosis output)

5. T5≥500ms (When ON input of remote sensitivity setting

is applied and then apply OFF input of remote sensitivity

setting after 500ms)

sensitivity setting

Detectable