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pump control pool

$240-2000 HKD

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Αναρτήθηκε περίπου 6 χρόνια πριν

$240-2000 HKD

Πληρωμή κατά την παράδοση
I am using an s7-1200 PLC. I need someone to write the ladder logic for it please. it has a master 3 position switch. Pump off.. Pump On.. Pump Auto There are 3 valves to control and there are 2 water level sensors. One sensor is full and one is empty. They are float type switches. Pump will turn on manual if selected, only if the low level switch is not activated. if the low level switch is activated while the pump is running it will stop the pump until the low level switch is normal. then the pump will restart. it will output a light buzzer. Pump will turn on to the auto mode, signal provided by a timer relay, if selected, only if the low level switch is not activated. if the low level switch is activated while the pump is running it will stop the pump until the low level switch is normal. then the pump will restart. it will output a light buzzer. If the low level switch is activated (closed) (NO), it will activate the light buzzer output signal as above. if the low level switch is activated it will open a valve. (refill) (refill valve open command is maintained for 35 seconds) . the refill valve will remain open until the high level switch is activated (CLOSED) (NO) AND the low level switch is (OPEN) - the REFILL valve is then sent a closed signal for 50 seconds. The second valve (surge Valve) will open when the motor is on in auto or manual mode only. If there is no motor on command the surge valve will be sent a closed signal for 60 seconds. when the motor start command is received the SURGE valve will be sent an open signal for 60 seconds. If the motor is stopped because of low level, the SURGE valve will receive a closed command for 60 seconds. The last valve is called VACUUM. It has an On OFF toggle switch. when switched on it will close the SURGE VALVE (60 seconds command) and open the VACUUM Valve for 60 seconds. it will start the pump (provided no low level signal exists). after 4 hours elapsed time it will revert the control back to the auto command or manual command depends on the switch. If manual is on, then it will CLOSE the VACUUM for 60 seconds and OPEN the SURGE FOR 60 SECONDS and the motor will remain on due to the MANUAL ON SELECTION. IF AUTO is on, CLOSE the VACUUM for 60 seconds and OPEN the SURGE FOR 60 SECONDS and the pump is on or off depending on the manual timer. LIGHTS has a pushbutton momentary switch. ON leaves the output on for 4 hours - OFF is off immediately. Push on push off. relay outputs from the S7-1200 Q0.0 PUMP RUN Q0.1 LIGHTS ON Q0.2 FAULT BUZZER Q0.3 PUMP ON LED Q0.4 SURGE OPEN Q0.5 SURGE CLOSE Q0.6 REFILL OPEN Q0.7 REFILL CLOSE Q1.0 VACUUM OPEN Q1.1 VACUUM CLOSE Inputs A0.0 Pump off A0.1 Pump MAN on A0.2 Pump AUTO on A0.3 VAC momentary push button A0.4 High Float switch A0.5 Low float switch
Ταυτότητα εργασίας: 16599010

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40 προτάσεις
Απομακρυσμένη Εργασία
Ενεργός/ή 6 χρόνια πριν

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40 freelancers δίνουν μια μέση προσφορά $1.204 HKD για αυτή τη δουλειά
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Hi. interesting project. I am very interested in participating in the design. Your explanation is very complete and I can see that it is about automating some process of filling and emptying a tank of some liquid. I would like to kindly make some recommendations: 1. In these cases it is advisable to use the NC contacts of the level switch for safety reasons in case the cable breaks. If you use NO and the wire is cut or a switch contact fails, the pump will remain on and not shut off. 2. I recommend using contactors with thermal switches on the pumps and wiring them to a PLC input to stop the motor in case of overload. 3. Plus: use a flow detector to stop the pump in case of idling if any valve fails using another PLC input. this is to protect the mechanical seals of the pump. Other minor details can be discussed by chat. If you have any comments or questions, please let me know. Thank you. Best regards Darwin
$4.444 HKD σε 20 ημέρες
5,0 (10 αξιολογήσεις)
4,7
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Haey, I am a professional Electronics Engineer having expertise in Siemens PLC and ladder logic. I have done many similar projects based on industrial automation and control. Contact me I am available. Thanks
$1.500 HKD σε 5 ημέρες
4,7 (16 αξιολογήσεις)
5,0
5,0
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I am from Hong Kong. I have some experience with Siemen TIA 14 but I can’t fully understand the requirements you written here. I can talk in Cantonese. If you are interested, please chat with me.
$2.000 HKD σε 3 ημέρες
5,0 (10 αξιολογήσεις)
4,1
4,1
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Hi. I successfully program the Siemens PLC for more than five years. Thanks for the expanded technical project. I'll do the project in 2-3 days. Pump control with a frequency converter or directly from a contactor? Need protection from a water hammer? I am glad to cooperate.
$1.444 HKD σε 3 ημέρες
4,9 (9 αξιολογήσεις)
3,9
3,9
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Hi, I’m an experienced Automation engineer. I’m familiar with Siemens 1200 plc family, and also others. I’m interested in your project. I can do the programming and assist you during startup. Kind regards, Ales
$1.333 HKD σε 15 ημέρες
5,0 (2 αξιολογήσεις)
3,9
3,9
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I am electrical engineer .I have lot of experience working with various employers globally. Can I do Circuit Analysis and design, Power System Analysis,DC/AC machines Electrical Distribution , translation and technical writer .i use Autocad,Matlab,Revit,Plc simulator, Pspice,word and excel.
$520 HKD σε 5 ημέρες
4,8 (21 αξιολογήσεις)
3,6
3,6
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Hello there, I understand that you need to get designs and PLC programmer for your product, I'd be more than happy to help you with that. I have 5 years experience in PLC, SCAD A, HMI program development and site commissioning. worked on s7_1200 plc at water treatment plant and various platforms of automation family's. Please feel free to contact me so we can discuss your project in more details. Regards, Ahmed
$833 HKD σε 5 ημέρες
4,1 (3 αξιολογήσεις)
3,6
3,6
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Hi Sir. "Greetings" from Nazar Abbas! If you allow me I want to do work on this project without any failure. I am also understanding your requirements about this project/work. I am very familiar with Siemens PLC from hardware side and as well as its software side and I have also performed similar projects using s7-200 up to 1200 in past.
$1.666 HKD σε 5 ημέρες
5,0 (3 αξιολογήσεις)
2,0
2,0
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hi im an electromecanical engineer i work in wastewater treatment plant, so im familiar to work on pump, motor, sensors i can do for you the programmation contact me, i'll be glad to work with you
$555 HKD σε 7 ημέρες
5,0 (4 αξιολογήσεις)
1,8
1,8
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A proposal has not yet been provided
$1.000 HKD σε 10 ημέρες
0,0 (1 αξιολόγηση)
0,0
0,0
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My friend hope this finds you well. I am Siemens certified on PlC programming and mechatronic systems design. I can handle your project 100% I assure you a well done job.
$1.333 HKD σε 2 ημέρες
0,0 (0 αξιολογήσεις)
0,0
0,0
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Hello, I'm proficient PLC programmer. I can do the job, if you hire me. Kind regards.
$1.777 HKD σε 3 ημέρες
0,0 (0 αξιολογήσεις)
0,0
0,0
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dear sir, have done same kind of project at a residential colony of water pumping to houses based on level and line peessure.
$833 HKD σε 4 ημέρες
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0,0
0,0
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A proposal has not yet been provided
$1.244 HKD σε 3 ημέρες
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This project is very similar to a project tat I done for university of Oregon, USA. I can share some of its photo with you. I will add a good value to your project. modifications will be free . finally I can adjust price according to your budget after showing me more details about your project . Lets talk about details.
$1.244 HKD σε 3 ημέρες
0,0 (0 αξιολογήσεις)
0,0
0,0
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I work for siemens solution partner since 2007,as plc engineer
$1.244 HKD σε 3 ημέρες
0,0 (0 αξιολογήσεις)
0,0
0,0
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ya he programado lógicas parecidas. actualmente trabajo con lógicas para compresores de gas natural vehicular
$888 HKD σε 10 ημέρες
0,0 (0 αξιολογήσεις)
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0,0
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I've worked on S7-1200, 1214C specifically. and used TIA PORTAL v13 as development software. the reason my bid is low because I want to start freelancing and haven't any luck earlier due to no profile reviews. hope to get this project. you're invited to visit my profile.
$600 HKD σε 3 ημέρες
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$1.111 HKD σε 3 ημέρες
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Please inform what type of s7-1200 you are using on this project, i can do it for you but it's better to know what cpu you are using.
$1.666 HKD σε 5 ημέρες
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Σημαία της HONG KONG
Hong Kong, Hong Kong
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Μέλος από Νοε 4, 2009

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