Proxymity sensing problem in ml1100

vikas1947 · Dec 21, 2011

I HAVE A PROXYMITY SENSORE WHICH IS NPN TYP OF IT MEANS I AM GETTING ITS OUTPUT FROM BLACK WIRE +24 VOLT AND IF I GIVE THIS OUTPUT TO THE I1 TERMINAL OF PLC THEN THE PLC I1 GET HIGH .BUT IT IS NOT GETING HIGH OR IF I GIVE +24 TO I1 THEN IT WILL GET HIGH
HERE YPU CAN SEE THE SPECIFICATION OF THE SENSORE

http://www.pepperl-fuchs.com/global/en/classid_143.htm?view=productdetails&prodid=251#107280

THE WIRING DIAGRAM WILL SHOW YOU MY CONNECTION WIRING

TomekPLC · Dec 21, 2011

Your push button is wired to produce PNP output but the sensor produces NPN. You can't mix input types on the same common.

dmargineau · Dec 21, 2011

A NPN (Negative Positive Negative semiconductor junction) sensor is a "Source Input"; it will pass (-) when changing states. It is not as commonly used as the "mainstream" PNP (Positive Negative Positive)sensor which will pass (+) when triggered.
In order to "examine" a NPN sensor within an application, you will have to wire the "Signal" to a "Source Input" type PLC module/point.

widelto · Dec 21, 2011

try as attached.

iant · Dec 21, 2011

this is one of those "rude senior" posts
Search this site for "sinking and sourcing"
OR NPN
there are many posts on this topic

vikas1947 · Dec 22, 2011

thanks

i did it once again thanks to all ....

vikas1947 · Dec 22, 2011

Question for connection of proximity sensor

sir what happen if i will apply -ve to the positive point of sensor and +ve to the negative side of sensor ?

bernie_carlton · Dec 22, 2011

The datasheet said that it was 'reverse polarity protected'. NO WORK BUT NO BOOM.

iant · Dec 22, 2011

vikas1947 said:
sir what happen if i will apply -ve to the positive point of sensor and +ve to the negative side of sensor ?

vikas1947 - mate - you are dragging out the question.

You Have an NPN sensor - To use it an a PNP circuit you will need to wire it either to a converter or auxillary relay.

There is no other easy way - :nodi:
Unless the sensor has the facility to be Either NPN or PNP.
they do exist.

OkiePC · Dec 22, 2011

If it uses the common type of M12 4 pin connector, this might be an easy fix:
http://www.turck-usa.com/illustrations/B0313_07-08.pdf

iant · Dec 22, 2011

OkiePC said:
If it uses the common type of M12 4 pin connector, this might be an easy fix:
http://www.turck-usa.com/illustrations/B0313_07-08.pdf

this is an in line converter - and it is a good one

Proxymity sensing problem in ml1100

vikas1947

Member

TomekPLC

Member

dmargineau

Lifetime Supporting Member

widelto

Member

iant

Lifetime Supporting Member + Moderator

vikas1947

Member

vikas1947

Member

bernie_carlton

Lifetime Supporting Member + Moderator

iant

Lifetime Supporting Member + Moderator

OkiePC

Lifetime Supporting Member

iant

Lifetime Supporting Member + Moderator

Similar Topics