how to measure rpm on ab control logix 5000

jalpa

Member
Join Date
Jan 2010
Location
Gujarat
Posts
1
Dear Sir,

We have one reactor on its shaft we have 3 bolts and we had inserted one proximity switch. Now we want to calculate RPM of that motor of reactor. How to develop logic on controllogix ladder diagram.

Jalpa Shah
 
In my opinion, you should use a high-speed counter (HSC) card. Standard I/O is seldom fast enough to handle pulse counting or RPM-calculation applications.

How fast is this shaft rotating ? Have you used an oscilloscope to measure how long the proximity input is high while the bolt head is passing by ?

The easiest way to measure RPM is to count for a specific period of time, then divide the counts by the time interval.

Have you attempted to write this routine yet, or are you asking for help from the very start ?
 

Similar Topics

Greeting experts! We have a new machine we just built. It is equipped with regenerative drives. The machine uses Beckhoff controls (PLC and...
Replies
6
Views
1,084
Hey all. I have decided, for my own curiosity, that i want to know, and chart, exactly how much power my air conditioner actually consumes. And...
Replies
13
Views
1,615
Hello to all, I don't have to much experience in the PLC. I'm using the Studio 5000 v32.03 We are trying to measure the length of a product, in...
Replies
3
Views
1,116
For part of our test system, we need to measure water level inside a chamber, which is under vacuum. We were successfully using one of these by...
Replies
112
Views
28,125
Back
Top Bottom