hi guys

Hi, my name is yassine-khelil CHELALI , I'm a student in Faculty of Petroleum and Chemical in BOUMERDES-ALGERIA department of automatic , specialty Electromechanical, 5th year engineering
My project is based on the automatic brake of the drawwork of drilling, combination between auxilary(electromagnetic) and principal(mechanic) brakes, I want to use the encoder but I don't know how I use it, please help me , the PLC used in the site is Allen Bradley 5/03 serie B 1746, but in my proposed solution I want to use S7-300, and integrate it with Allen bradley
inputs:
1- encoder: for the height and speed
2- toggel SW for the mechanical brake ( braking, liberate)
3- controller for the electromagnetic brake(ELMAG-CO)
4- the hand throttle, and foot throttle(faster than hand throttle ) used in determining the value of speed
outputs:
1- two solenoids ( enter, liberate ) the air in the pneumatic eign
2- auxilary brake circuit ( base transistor )
3- values of the speed
4- cutting the control signal for the automatic braking with the auxilary brake

and finelly the calibration of the system, limits for eatch brake( hand/auto)
my E-mail : [email protected]

My project is based on the automatic brake of the drawwork of drilling,. . .

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Would this also be called an "automatic brake for the winch on a drilling rig"?

...the PLC used in the site is Allen Bradley 5/03 serie B 1746, but in my proposed solution I want to use S7-300, and integrate it with Allen bradley.

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I am familar with Allen Bradley SLC 5/03 encoder instructions, but not the Siemens S7-300. However, I am sure the methods are similar. The key is knowing exactly how your specific brand and model of encoder works - how it converts a rotary input into a series of numbers.

yes , I was in a drilling site here in algeria, do you have any ideas on this pleas , in the new systems there is a system called KEMS but I don't know how it's working,

thanks for replying me , I was in a drilling site here in ALGERIA, there is another system(new from china) called KEMS but I don't have any idea on it, can you help me to release this project pleas,

Do you have any ideas on this, please?

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Yes, first pick an encoder brand and model that will work with your S7-300 and also with the winch on the drilling rig. You need to know the maximum speed of the winch shaft, and the voltage level of your S7-300 input for the encoder (among other things that you will have to know).

yes, I'm now searching for an encoder , but I don't know how it work and how I can use it in PLC

in the site there are allen bradley , but the Rslogix 500 witch I have , there is now slc 5/03 serie B 1746, because of that I want to work with siemens

I'm sorry for my bad english

I have Rslogix500 with slc 5/03 serie C not serie B, to that I want to work with siemens, but if you have a solution with allen bradley It's ok , I will work with it but not for the same processor

we work with drawwork 2000 HP for drilling

and for the voltage , I will use allen bradley if you have the data on it , because in the site nobody help me , they don't understand it

Here is a Siemens discussion on using encoders. It is for the Siemens S7-200, but the same methods apply for the 300. You need to connect your encoder inputs to the High-Speed Counter inputs of your PLC. The programming softwaere will have an instruction for a high-speed counter that can count the pulses from the encoder.

https://www.automation.siemens.com/...how.aspx?PageIndex=1&PostID=69356&Language=en

thank you,thanks for your time, but how the PLC read the signals coming from the encoder(digital, analogue),

sir , do you think that Rslogix 500 is more simple than step7 in ladder programming ?

Tank you,thanks for your time, but how the PLC read the signals coming from the encoder(digital, analogue),

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Digital inputs that are configured as High-Speed Counter inputs.

Sir , do you think that Rslogix 500 is more simple than Step 7 in ladder programming?

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It is for me.