TERMINAL CONNECTIONS - scansensor.com.cn support.pdf · view symble diameter plug outline m8 m5 m12...

TERMINAL CONNECTIONS

AC or AC/DC 20-250V 2-wire N.C.

METAL HOUSING

1

2

Blue

Yellow/Green

BrownL1

L2

- 05 -

(1)

(3)

(5)

(7)

(11)

DC NPN-N.O.

DC PNP-N.O.

Blue

White

Black

Brown

3

2

4

1

B

A

DC NPN-N.O. & N.C.

+

DC 2-wire N.O.

3

3

4

1

4

Blue

Blue

Black

Brown

Brown

A

DC NPN-N.C.

DC PNP-N.C.

3

2

1

Blue

Black

Brown

B

3

4

1

Blue

Black

Brown

A

3

2

1

Blue

Black

Brown

B

Blue

Black

White

Brown

3

2

4

1

B

A

DC PNP-N.O. & N.C.

-))

))

DC 2-wire N.C.

+1

4

Blue

Brown -))

))

(9) AC or AC/DC 20-250V 2-wire N.O.

PLASTIC HOUSING

3

4

Blue

BrownL1

L2

AC or AC/DC 20-250V 2-wire N.O.

METAL HOUSING

3

4

Blue

Yellow/Green

BrownL1

L2

(12)

(2)

(4)

(6)

(8)

(10) AC or AC/DC 20-250V 2-wire N.C.

PLASTIC HOUSING

3

4

Blue

BrownL1

L2

AC/DC 20-250V N.O., N.C. Changeable

METAL HOUSING

Blue

White

Black

Brown

3

2

4

5

1

AC/DC 20-250V N.O., N.C. Changeable

PLASTIC HOUSING

Blue

White

Black

Brown

3

2

4

1

Yellow/Green

Analog Voltage Output

DC 18-30V(15-30V)

0 V

Voltage output

Blue

Black

Brown1

4

3

Analog Voltage & Current Output

AC 20-250V N.O., N.C. Changeable

3(1)3

1

4(2)

5 Way Rotatable Sensing Head

4

2

- 06 -

NAMUR DC 6-12V

DC VOLTAGE OUTPUT(N.C.) DC 10-30V

3

1

2B

Blue

Brown

(24)

(20)

(16)

(18)

(22)

(14) AC 20-250V N.O., N.C. Changeable

METAL HOUSING

Blue

White

Black

Brown

3

2

4

5

1

AC 20-250V N.O., N.C. Changeable

PLASTIC HOUSING

Blue

White

Black

Brown

3

2

4

1

Yellow/Green

(23)

(17)

(19)

(21)

(13)

(15) AC/DC 20-250V N.O., N.C. Changeable

3(1)

Brown 1

3

3

1

4(2)

Blue

5 Way Rotatable Sensing Head

4

2

DC 18-30V(15-30V)

0 V

Current output

Voltage output

Blue

WhiteBlue

Black

Black

BrownBrown1

4

2

3

Capacitive mini size sensor

DC 5-8V

Analog Current Output

DC 18-30V(15-30V)

0 V

Current output

Blue

Black

Brown1

2

3

Black


- 07 -

SYMBLEVIEW PLUG OUTLINEDIAMETER

M8

M5

M12

M12

C164R

M12

C

M

R

B

Y

Z

U

7/8"-16UN2A

Used for DC only

Used for AC only

1

4

2

3

3

4

1

3

4 2

1

3 4

2 1

1 1

3 3

2 2

3

1

2

4

5

2

1

34

4

1

2

3

1

23

2

1

5

2

1

3

4

4

1

3

2


CONNECTOR WIRING DIAGRAMS AND PIN OUT CHART

(35) M12 (36) M12 DC 3-wireP -N.O. NP

DC 3-wirePNP-N.C.

Connector face view Connector face viewFemale plug end view Female plug end view

4-black3-blue

1-brown2-not used

2

3 4

13-blue

1-brown2-white

4-not used

2

3 4

122

33

44

11V+

V+VV

(33) M12 (34) M12 DC 3-wireNPN-N.O.

DC 3-wireNPN-N.C.


4-black3-blue

1-brown2-not used

2

3 4

13-blue

1-brown2-white

4-not used

2

3 4

12

34

1V+

V2

34

1V+

V

(27) M5 (28) M5 DC 3-wireP -N.O. NP

DC 3-wirePNP-N.C.


4-black3-blue

1-brown2-not used

2

3 4

13-blue

1-brown2-white

4-not used

2

3 4

122

33

44

11V+

V+VV

- 08 -

(29) M8

(31) M8

(30) M8

(32) M8

DC 3-wireNPN-N.O. or N.C.

DC 4-wireNPN-N.O. or N.C.

DC 3-wire

DC 4-wire

P -N.O. or N.C.NP

P -N.O. or N.C.NP

3 3

4 4

1 1V+ V+

Connector face view

Connector face view

Connector face view

Connector face view

Female plug end view




3 3

4 4

1 1

1-brown 1-brown

3-blue 3-blue4-black 4-black

VV

(25) M5 (26) M5 DC 3-wireNPN-N.O.

DC 3-wireNPN-N.C.


4-black3-blue

1-brown2-not used

2

3 4

1

4-black3-blue

1-brown2-white

3

4 2

1

3-blue

1-brown2-white

4-not used

2

3 4

12

3 3

3

4 4

4

2 2

1

1 1

V+

V+ V+

V

V V4-black3-blue

1-brown2-white

3

4 2

1

2

34

1V+

V

(48) C164RDC (10-60V)2-wireNPN(P -N.O. NP)

DC (10-60V)2-wireNPN(P -N.O. NP)


DC 4-wireNPN-N.O. & N.C.

DC 4-wirePNP N.O. & N.C.-


(39) M8 (40) M12 DC (10-60V)2-wireNPN(P -N.O. NP)

DC (10-60V)2-wireNPN(PNP)-N.O.


3-blue

1-not used2-not used

4-brown

2

3 4

12

34

1

- 09 -

(41) 7/8" 16UN2A

(43) 7/8" 16UN2A

(45) 7/8" 16UN2A

(47) 7/8" 16UN2A

(42) 7/8" 16UN2A

(44) 7/8" 16UN2A

(46) 7/8" 16UN2A

DC 3-wireNPN-N.O.

DC 3-wirePNP-N.O.

DC 3-wire

DC 3-wire

NPN-N.C.

P -N.C.NP

Connector face view

Connector face view

Connector face view

Connector face view





(37) M12 (38) M12 DC 4-wireNPN-N.O. & N.C.

DC 4-wirePNP N.O. & N.C.-


4-black3-blue

1-brown2-white

2

3 4

13-blue

1-brown2-white

4-black

2

3 4

12

34

1V+

V

2

34

1V+

V

3

4

13

4

1

1-not used

3-blue4-brown

V+( (

V+( (

V+( (V ( (+

V ( (+

V ( (+

V+

V+

V+

V+

V+

V

V

V

V

V

1

1

1

1

1

1

4

4

4

4

4

4

3

3

3

3

3

3

2

2

2

2

2

2

4

4

4

4

4

4

1

1

1

1

1

1

2

2

2

2

2

2

3

3

3

3

3

3

2-not used

2-not used

2-not used

2-white

2-white

2-white

1-brown

1-brown

1-not used

1-brown

1-brown

1-brown

3-blue

3-blue

3-blue

3-blue

3-blue

3-blue

4-black

4-black

4-black

4-black

4-not used

4-black

4-not used3-blue

1-brown2-whiteV+ V

1

4

3

2 4

1

2

3

4

1

-not used4-brown

1-not used

3-blue2-not used

3

2

V+( (V ( (+

43

21


(59) M12 (60) M12


(57) M12 (58) M12


(51) C164R (52) C164RDC 3-wireP -N.O. NP

DC 3-wirePNP-N.C.


- 10 -

(53) C164R

(55) M12

(54) C164R

(56) M12

DC 4-wireNPN-N.O. & N.C.

AC 20-250V metal housing3-wire N.O. or N.C.

AC 20-250V metal housing5-wire N.O. & N.C.


AC or AC/DC 20-250Vmetal housing3-wire N.O. or N.C.

AC or AC/DC 20-250Vplastic housing2-wire

AC or AC/DC 20-250Vplastic housing2-wire N.O. or N.C.N.O. or N.C.

DC 4-wireP -N.O. & N.C.NP

Connector face view

Connector face view

Connector face view

Connector face view





(49) C164R (50) C164RDC 3-wireNPN-N.O.

DC 3-wireNPN-N.C.


4 4

4 4

1 1

1 1

-not used -not used

-not used -not used

4-black 4-not used

4-black 4-not used

1-brown 1-brown

1-brown 1-brown

3-blue 3-blue

3-blue 3-blue

2-not used 2-white

2-not used 2-white

3 3

3 3

2 2

2 2

V+V+

V+ V+

VV

V V

44

4 4

33

3 3

22

2 2

11

1 1

4 4

1 1

-not used -not used4-black 4-black

1-brown 1-brown

3-blue 3-blue2-white 2-white

3 3

2 2V+ V+

VV

4 43 3

2 21 1

L1

L1

1

1

L2

L2

2

2

3

3

1

1

1

3

3

3

2

2

2

1-black

1-black

1-brown

3-not used

3-not used

3-blue4-black

2-blue

2-blue

2-white

-yellow/green

-not used

-Yellow/green

L1

L1

L2

L1

2

2

5

4

2

L2

(L1)

(L2)

L2

3

3

3

1

1

1

3

3

1

1

3-blue

3-blue

2-black

2-black

1-yellow/green

1-not used

2

2

4

(L1)

L1

1

L2

(L2)2

3

N.C.

N.C.

N.O.

N.O.4

5-red/black4-red/yellow3-green

1-red/white2-red

5

2

1

34


(61) M12 (62) M12


1

3

2

1-brown

3-blue4-black

2-white

-not used

L1

L22

5

4(L1)

(L2)

3

1

4

(L1)

L1

1

L2

(L2)2

3

N.C.

N.C.

N.O.

N.O.4

5-not used4-red/yellow3-green

1-red/white2-red

5

2

1

34

(72) C164R



(63) M12 (64) M12


- 11 -

(65) 7/8" 16UN2A

(67) 7/8" 16UN2A

(69) 7/8" 16UN2A

(71) 7/8" 16UN2A

(66) 7/8" 16UN2A

(68) 7/8" 16UN2A

(70) 7/8" 16UN2A

Connector face view

Connector face view

Connector face view

Connector face view





1

1 1

4 4

3

3 3

2

2 24 4

1

1 1

2

2 2

3

3 3

2-yellow/green

2-white 2-white

1-brown

1-brown 1-brown

3-blue

3-blue 3-blue4-black 4-black

2-blue1-brown

2

1 1

2

4

1

-Yellow/green4-not used

1-brown

3-blue2-not used

3

2

AC or AC/DC 20-250Vplastic housing4-wire N.O. & N.C.

AC/DC 20-250V metalhousing4-wire N.O. & N.C.

AC or AC/DC 20-250Vplastic housing4-wire N.O. & N.C.

AC/DC 20-250V metalhousing4-wire

AC or AC/DC 20-250Vplastic housing2-wire

N.O. & N.C.

AC/DC 20-250V plastichousing4-wire

AC/DC 20-250V metalhousing5-wire

N.O. & N.C.

N.O. & N.C.

N.O. Or N.C.

1

3

2

1-brown

3-blue4-black

2-white

-Yellow/green

4

L1L1

L1

L1

L2

L2

L2

L2

L1

L22

5

4(L1)

(L2)

3

1

N.C.N.O.

5-red/black4-red/yellow3-green

1-red/white2-red

5

2

1

34


AC 20-250V metal housing5-wire

AC 20-250V plastic housing2-wireN.O. & N.C.

AC 20-250V plastic housing4-wire N.O. & N.C.


N.O. Or N.C.

1

5

5

5

4

2

2

2

5

1

1

1

3

3

3

3

2

4

4

4

L1

L1

(L2)

(L2)

(L2) (L2)L2 L2

N.C.

N.C.

N.C. N.C.N.O. N.O.

N.O.

N.O.

4-brown3-yellow/green

1-black2-blue

5-white

4-brown3-yellow/green

1-black2-blue

5-white

(L1)

(L1)

(L1) (L1)L1 L1

L2

L2

4

1

-not used4-not used

1-brown

3-blue2-not used

3

2

4

4

3

3

2

2

1

1

(L1)

L1

1

L2

(L2)2

3

N.C.

N.O.4



(80) C164RDC (10-60V)2-wireNPN(P -N.C. NP)

Connector face view Female plug end view

4

1

-not used4-brown

1-blue

3-not used2-not used

3

2

V+( (

V ( (+

43

21

(73) C164R


4

1

-Yellow/green4-black

1-brown

3-blue2-white

3

2


43

2 1


(75) C164R

(74) C164R

(76) C164R


AC/DC 20-250V plastichousing4-wire

AC/DC 20-250V metalhousing5-wire N.O. & N.C.N.O. & N.C.

AC 20-250V plastic housing4-wire N.O. & N.C.

(L2)N.C.

N.O.

(L1)

(83) M8

Connector face view

(voltage)

(Current)


(81) M8 (82) M8 Analog Voltage OutputDC 18-30V(15-30V)

Analog Voltage &Current OutputDC 18-30V(15-30V)

Analog Current OutputDC 18-30V (15-30V)


(84) M12 Analog Voltage OutputDC 18-30V(15-30V)


4-black3-blue

1-brown2-not used

2

3 4

12

34

1V+

V

- 12 -

L1

L2

4

4

1

1

-not used

-not used

4-black

4-black

1-brown

1-brown

3-blue

3-blue

2-white

2-white

3

3

2

2

4

4

3

3

2

2

1

1

(L2)

(L2)

N.C.

N.C.

N.O.

N.O.

(L1)

(L1)

L1

L1

L2

L2

4

1

-Yellow/green4-black

1-brown

3-blue2-white

3

2

43

2 1(L2)N.C.

N.O.

(L1)

L1

L2

(77) M8 (78) M12 DC (10-60V)2-wireNPN(P -N.C. NP)

DC (10-60V)2-wireNPN(PNP)-N.C.


3-not used

1-blue2-not used

4-brown

2

3 4

12

34

13

4

13

4

1

1-blue

3-not used4-brown

V+( (V+( (

V ( (+ V ( (+

(79) 7/8" 16UN2A


1

4

3

24

1

2

32-not used1-blue

3-not used4-brown

DC (10-60V)2-wireNPN(P -N.C. NP)

V+( (

V ( (+

4-black

4-black

4-not used3-blue

3-blue

3-blue

1-brown

1-brown

1-brown2-not used

2-not used

2-white

3

3

3

4

4

42

2

2

1

1

13

3

3

4

4

42

2

2

1

1

1V+

V+

V+V

V

V


(89) DC NPN-N.C.(Double sensor)

3Blue

Brown

Black

White

1

4

2B

B

(90) DC PNP-N.O.(Double sensor)

3Blue

Brown

Whie

Black

1

4

2A

A

(91) DC PNP-N.C.(Double sensor)

3Blue

Brown

Whie

Black

1

4

2B

B

(86) M12

Connector face view

(voltage)

(Current)


Analog Voltage &Current OutputDC 18-30V(15-30V)

(87) M12


- 13 -

DC 10-60V 2-wire-N.O.(Double sensor)

(85) M12 Analog Current OutputDC 18-30V (15-30V)


3-blue 3-blue

1-brown 1-brown2-white 2-white

4-not used 4-black

2

3 4

1 2

3 4

12 2

3 34 4

1 1V+ V+

V V

4-brown3-blue

1-black2-white

3

4 2

13

42

1V+

V+ V+

V

(88) DC NPN-N.O.(Double sensor)

3Blue

Brown

Black

White

1

4

2A

A

PROXIMITY SWITCHES, GENERAL

- 14 -

Inductive Proximity Switches

Normal Operating Distance

45x1

30x1

24x1

18x1

12x1

12x1

8x1

8x1

15

10

8

5

4

2

2

1

30

30

18

18

12

12

8

8

(mm)Fe 37 actuator

distance SN (mm) Nominal

(mm)Diameter

Table 1: Actuator dimensions as function of the diameter and of the operating distance

Inductive Proximity Switches operate by using an L/C resonant oscillator which generates, with the aid of a

coil located in the open pot core, a high frequency alternating electromagnetic field. This field emerges from

the active face of the switch.

When an electrically conductive material

(for example a steel plate) moves into the

electromagnetic field, an induced eddy

current occurs. This eddy current extracts

energy from the L/C resonant circuit in

the switch, and produces a reduction in

the oscillation amplitude. This reduction

in the amplitude is converted by the

associated electronic circuitry into a

clear electronic signal, and changes the

state of the switch.

When the electrically conductive material is removed from the alternating field the oscillation amplitude

increases which, by way of the electronic circuitry, will restore the switch to the original unswitched state.

The Normal Operating Distance is defined as the distance between the detector and the target when the

change(switching) in the logic state of the proximity switch occurs. This distance and the tests associated

in obtaining this distance are outline in CENELEC EN 50010 standards. From this standard the target for

establishing Normal Operating Distance is an iron(Fe 37) square 1mm thick, and for cylindrical switches,

the size is as shown in Table 1. The normal sensing distance Sn and Sr, Su, Sa information see Figure A.

Sn

121%110%100%90%81%

0%

Sn = nominal sensing distance

Sr = effective operating distance 0.9 Sn <= Sr <= 1.1 Sn

Su = useful sensing distance 0.9 Sr <= Su <= 1.1 Sr

Sa = operating zone 0 < Sa <= 0.9 x 0.9 x Sn

Table 1: Figure A:

H

Sr

Fig. 1 Block Diagram - Inductive Switch

Su

Sa

Sr


- 15 -

Correction Factor

Shielded & Nonshielded

Inductive : When using inductive proximity

switches with non-ferrous metals it is nes-

cessary to apply a correction factor to the

operating distance (sensing range) as

follows:

Shielded construction includes a metal band which

surrounds the ferrite core and coil arrangement.

This helps to direct the electro-magnetic field to

the front of the sensor.

Nonshielded sensors do not have this metal

band, therefore they can be side sensitive.

Shielded Sensor Nonshielded Sensor

Capacitive : Capacitive switches have an

adjustable detection range, and are depen-

dent upon the type of material to be sensed.

See Figure4.

FERRITE

SHIELD SHIELD

FERRITE

Brass

Aluminum

Copper

Chrome Nickel Alloy

Stainless steel

Distance X. 0.50

X. 0.45

X. 0.40

X. 0.90

X. 0.85

Distance

Distance

Distance

Distance

MaterialsCuAlOtt.CrNiFe37

404555

85

Sn%

50

100

Fig. 4 Capacitive switch correction factor


- 16 -

Mounting

Hysteresis

Hystersis is the travel of the target between the "switch-on" point and the "switch-off" point.

This distance is required to allow the switch to properly detect the target, and reduces the

possibillity of false trips. See following figure.

D

D

3Sn 3Sn

2D

D D

D

DD

Shielded Mounting Non-shielded Mounting Opposite Mounting

> >

> 6Sn

Because of possible interference of the electromagnetic fields generated by the oscillators, minimum

spacing is required between adjacent or opposing "active surface" of proximity switches.

The "active surface " may be flush with the metal in which the switch is mounted, (see

Mounting".) The "active surface" must have a free zone in which no metal is present, (see figure "Non-

shielded Mounting".) When mounting proximity switches in this manner where the "active surfaces"

are opposite each other, there must be a minimum distance between them,(see figure "Opposite

Mounting".)

figure "Shielded

It is good engineering practice to mount proximity switches horizontally or with the active

facing down. Avoid proximity switches that face up wherever possible, especially if metal filings

and chips are present.

surface

curvestrigger

switchproximity

Sdistanceswitching

hysteresisON point

OFF point

moving direction

Hysteresis

NPN Connection


- 17 -

V+

OUTPUTSIGNAL

LOAD

BLK

BRN

BLU

BLU

BRN

BLK

SIGNALOUTPUT

V+

BLU

BRN

BLK

SIGNALOUTPUT

V+

BLU

BRN

BLK

SIGNALOUTPUT

V+

V+

OUTPUTSIGNAL

BLK

BRN

BLU BLU

BRN

BLK

SIGNALOUTPUT

V+

BLU

BRN

BLK

SIGNALOUTPUT

V+

BLU

BRN

BLK

SIGNALOUTPUT

V+

0 VDC

LOAD

10-30 VDCPARALLEL WIRING - "R" FUNCTIONSERIES WIRING - "AND" FUNCTION

SERIES WIRING - "AND" FUNCTION PARALLEL WIRING - "R" FUNCTION

10-30 VDC

LOAD

0 VDC

V+

OUTPUTSIGNAL

BLK

BRN

BLUV+

OUTPUTSIGNAL

BLK

BRN

BLUV+

OUTPUTSIGNAL

BLK

BRN

BLUBLU

BRN

BLK

SIGNALOUTPUT

V+

V+

OUTPUTSIGNAL

BLK

BRN

BLU

V+

OUTPUTSIGNAL

BLK

BRN

BLU

V+

OUTPUTSIGNAL

BLK

BRN

BLU

BLU

BRN

BLK

LOAD

SIGNALOUTPUT

V+

Logic functions with DC proximity sensors:

Self-contained proximity sensors can be wired in series or parallel to perform such logic functions as AND, OR, NAND, NOR. The wiring diagrams show the connection of four sensors with NPN and PNP outputs. Take into account the accumulating voltage drop per sensor added in the series-string.

Series-connection: Parallel-connection:

N.O. sensors: AND Function (all sensorsmade: Load "on")

N.C. sensors: NOR Function (any onesensor open:load "off")

N.O. sensors: OR Function (any one sensoror all made:load "on")

N.C. sensors: NAND Function (all sensorsopen:load "off")

P ConnectionNP


- 18 -

The devices operate exactly like mechanical switches, with the connected load being switched

in series. They can be used into PLC inputs like relays. Notice should be taken on the influence

of minimum load current, leakage current and voltage drop.

In the "off" condition, only the leakage current(the no load current) flows through the external

load. In the "on" condition the amplifiers' output transistor conducts.

Between the connections of the proximity switch there is now a voltage drop created by the

internal Z-diode(<6v) and this should be allowed for within the supply voltage. The voltage

applied to the external load is lower than the supply voltage by an amount equal to the voltage

drop. The output amplifier is short circuit proof and overload protected.

Series and parallel connection of 2 wire DC proximity switches is not permitted.

Output circuit

load

BRN

BLU

Wiring diagram

Specifications

DiameterItem

Supply voltage

Ripple Vpp

M8

10-60 V DC

Output

Continous load current

Leakage current

Voltage drop(at Icont.)

Reverse polarity protection

Short-circuit protection

Transient protection

Switching frequency

Switching hysteresis

Temperature drift

Repeat accuracy

Operating temperature

<10%

N.O. or N.C.

3-100 mA

<1.2 mA

<8 V

Yes

Yes

Overload trip point

2 kV, 1 mS, 1 kohm

1KHz

15%

10%

<2%

-25 °C to o o +70 C

>120 mA

Shielded shielded

1KHz 1KHz 500Hz 500Hz 200Hz

BRNBRN

BLUBLU

LOADLOAD

-(+)-(+)

+(-)+(-)

N.O. N.C.

Non- Shielded Non-shielded

M12 M18

ShieldedNon-shielded

M30 or Q-type

ShieldedNon-shielded

2KHz 2KHz

<0.8 mA

<6 V

+_

DC 2 wire proximity switch

¡


- 19 -

Remark: Voltage drop <1V is tested at the max. load current, 200mA. Capacitive Proximity

switches are tested at 300mA.

AS the load current passes 200mA

(capacitive proximity switch over

300mA), the load short circuit

protection circuit is activated.

DC PNP output type proximity switches are designed with the following output circuit.

operation without sensing status, the transistor is in the OFF mode, with sensing status the

transistor is in the ON mode, as

the load current passes through

the transistor; in the N.C. mode,

the operation is opposite in the

N.O. Operation.

In N.O.

Remarks: Voltage drop <1V, it is tested in the max. load current, 200mA. Capacitive Proximity

Switch is tested in 300mA.

DC NPN output proximity switches consist of the following circuit. In N.O. operation, with no

sensing, the transistor is in the OFF mode. When sensing, the load current passes through

the transistor. In N.C. operation,

the function is opposite. In N.O.

operation, as the load current

passes 200mA (capacitive version

over 300mA), the load short circuit

protection is activated.

Tr

LO

AD

NPN

DC POWER

VOLTAGE DROP

SHORT CIRCUIT

PROTECTION

DC NPN output type

DC PN output typeP

Tr

LO

AD

PNP

SHORT CIRCUITPROTECTION

DC POWER

VOLTAGE DROP


- 20 -

N.O., N.C. changeover 4 wire devices are shown in the following circuits A and B.

When the proximity switch is in

the sensing mode transistor 1

is in the OFF mode; transistor

2 is in ON mode.

The max. load current is 200mA

with short circuit protection.

Output terminal N.O. and N.C.

may be connected to the load

at the same time.

These proximity switches are used as pilot devices for AC-operated loads such as relays, contactors,

solenoids, etc. The solid state output permits the use of the proximity switches directly on the line in

series with an appropriate load. They, therefore, replace mechanical limit switches without alteration

of circuitry, where operating speed or environmental conditions require the application of solid state

proximity switches.

These proximity switches are typically

available in a voltage range of 20-250V

AC or DC. All models are available with

either normally open(N.O.) normally

closed(N.C.), or with programmable

outputs(from N.O. To N.C.). Proximity

switches with AC/DC outputs are not

recommended for use with 24V DC

programmable controller inputs. load

MOSFET

B

A

DC output type four wire

AC/DC outputs

DC POWER

NPNL

OA

D

Tr2Tr1

LO

AD

DC POWER

PNP

LO

AD

Tr2Tr1

LO

AD


- 21 -

AC ouput two wire proximity switches have output circuits with SCR.

In the N.O. operation and non-sensing mode, the SCR appears OFF, in the sensed mode the SCR is ON. Load current passes through the SCR and to form feed circuit with extend load. In N.C. operation, the operation is opposite the N.O. operation.

SCR in OFF mode, (it needs by the operation internal circuit for proximity switch). The small current passing through the load is called leakage current. When the SCR is in ON mode internal circuit of proximity switch operates) This small voltage is called dropping voltage. The max. load current is 500 mA.

Leakage voltage is below 5V(load current is over 20mA) leakage current is below 2.5mA.

AC two wire output, N.C. / N.O. operation is changeable, per the schematic below.

Feedback circuit as head is connected with terminal 3 and 4, proximity switch is in N.O. Mode.

As load is connected with terminal 1 and 2, proximity switch is in N.C. mode. As SCR is in OFF

status, the internal circuit of proximity switch the working needs the very small current which

is called leakage current.

As SCR is in the status of ON, the internal operation of proximity switch, the very small voltage

available is called dropping voltage.

The max. load current is 500 mA.

Dropping voltage below 5V(load current over 20mA), leakage current is below 2.5mA.

N.O., N.C. operation are not available at the same time. It is only available for N.O. or N.C.

4

3

2

1

SCR

LOAD

AC output two wire device

AC output, N.O., N.C. Changeabletwo wire

SCR

LOAD

Leakage current


- 22 -

A leakage current flows through the proximity switches even when the output is turned off.

because of this the voltage remaining

in the load may result in accidental

operation or chattering, depending

upon the load. If this occurs, connect

a bleeder resister parallel to the load

in order to decrease the residual

voltage across the load.

R < Vs - 3.6

5(mA) - I (mA)(k )

(k )I (mA)-5(mA)

Vs R <

P >R

Vs X 0.001(w)

DC 2-WIRE type

AC 2-WIRE type

2

If continuous current flowing through the load is less than 10 mA, the proximity switch

will malfunction. Connect the bleeder

resistor parallel to the load in order

to increase the current flowing through

the load to more than 10 mA. This allows

the SCR in the circuit to operate reliably,

and decreases the remaining voltage

across the load.

2

AC 2-WIRE type

DC 2-WIRE type

0.001(w)X Vs

RP >

R < Vs

10(mA) - I (mA)(k )

(k )I (mA)-10(mA)

3.6- Vs R <

AC power source

AC 100V

AC 200V

bleeder resistor

more than 5W

more than 10W

4.7k

8.2k

load

I (mA)

Vs

bleeder resistor

Powersource

Example:

\\

\\

Continuous current

load

I (mA)

Vs

bleeder resistor

Powersource

NAMUR-Sensors to DIN 19234

- 23 -

NAMUR-Sensors are polarized 2-wire-sensors which change their internal resistance depending

on the distance to the target. They are designed for use with external amplifiers, which convert

the current changes into a digital signal.

Connection diagram

Ri:1K

0V

+8.2VDC

NAMUR-sensor amplifierI(mA)

4

3

2

1

1.55mA

1.75mA

S[mm]Sn

difference inswitching current

difference inswitching

I

S

Characteristic curve

Nominal Operating Values

NAMUR-sensors operate with a supply voltage from 5 to 25VDC. It is possible to work directly into logic circuits such as CMOS etc.

Note: different operating values(V,Ri) will counteract a change of the switching distance. Within the admissible voltage range it is necessary to adopt the resistanceRi, as well as the current in the switching point I(Sn). The following table shows typical values:

V[VDC] I (Sn)[mA]

5

12

15

24

0.39

1.8

2.2

3.9

0.7= 0.1=

2.3=

2.9=

3.8= 0.5=

0.4=

0.3=

W

Application in EX-areas

If NAMUR-sensors are used in EX-Areas (Explosion-hazardous areas) they must be connected using approved switching amplifiers with intrinsically safe control circuits.

The values of switching frequency and switching hysteresis are based on inter connection by NAMUR-amplifier.

NAMUR PROXIMITY SWITCHES - REQUIRE A REMOTE AMPLIFIER

Ri[k ] I[mA]


- 24 -

Stainless steel BrassPOMThread

M5x0.5 1.5

M8x1 3.5 4.5

M12x1 1 16 25

M18x1 2.3 28 60

M30x1.5 7 150 230

M42x1.5 200

max.

25 Nm

These values are based on using the nuts supplied with the sensors.

Pulsing short circuit protection

In case of overload or short circuit, the output tran

This tests whether the short has

been removed or not.

sistor is rapidly switched on and off.

+

-

OUTPUT

shortcircuitprotection

I

This kind of proximity switch's

voltage drop is <1V.

Short circuit protection

Maximum torque for proximity sensor threads in Nm:

TERMINAL CONNECTIONS - scansensor.com.cn support.pdf · view symble diameter plug outline m8 m5 m12...

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