| Final Project! Description: of washer Machine Course Code: Course Title: Laber
ID: 2293694 • Letter: #
Question
| Final Project! Description: of washer Machine Course Code: Course Title: Laberatory EE 4611Automati On Eng Control of Washer Machine Lab Objectives: a. Get the student related with a Programmable Logic Controller (PLC) b. Get the student related with the programming software for PLC. c. Provide practice of how to use the basic PLC instructions, Sequencer, Latch, Timers and Counters. d. Provide practice generating a PLC program to control a system. e. Promote entrepreneurship thinkin g. Lab Description: A PLC will control a washer machine with three temperature settings (Cold, Med, Hot). f O a. Select the setting for the temperature of the water with a 3-position selector switch. POS 1 (I:1/5) Cold water POS 2 (No inputs)-Warm water Pos 3 (1:1/6) Hot water Enter the "clothing load weight" in N7:0 (range 0 to 1023). The square root of this value multiple by 1.2 is the equivalent time (in seconds) to have the motor running (0:2/2-1). b. c. To start the cycle press the foot pedal (1:1/7). Turn ON the indicating light (O:2/10) while the d. Then, open the corresponding water valves. For Cold oscillate piston #1 (0:25) ; for Hot water washing cycle is running. oscillate piston #2(0:26) and for warm water oscillate both pistons at the same time when the water high level NO switch (I:1/9) is activated close the water valves. The low water sensor (I:1/11 I) must be activated before the motor can start e. To start the motor activate the O2/2 for the time specified in "step b". The motor will start if the door is close (1:1/13-1, Capacitance sensor on the conveyor in-feed). Stop the motor if the door is opened during the middle of the washing cycle. The washer shall stop temporarily but remembers its accumulated time and shall continue normally after the door is close. f. After the washing cycle (N7:0) is complete, start the drying cycle. First by opening the drain valve (0:2/2 and O:2/4, conveyor change direction). Then when no water is detected (1:1/11-0) activate the Hi-Speed O:2/3 1 for 5 seconds (maintain the drain valve open). g. When the washing is done, turn OFF the motors and keep the indicating light (0:2/10) blinking. h. As soon as you open the door (I:1/13-0) stop the light blinking. To start again go to step a. In your design take any other issues in considerations, like safety, user friendly, etc. Requirements: Design a PLC based system to control the automatic machine and perform the task described above. Use Sub-routines. Detail of the design will be specified on the lab. Picture: Convevor celoMachine Hi Level Piston 2 Fiber Optic o:2/ Sensor #3 Hor Piston 1 Diffuse. Sensor #1 Page 1 of 1 Ver 1.1Explanation / Answer
A programmable logic controller, or PLC can be used to control any process that requires automation, such as processes found in a chemical plant , automated machinery. a laboratory equipment. When used in such a process the PLC is programmed to perform a set of logical steps in a specific order to complete the desired task. These steps are programmed into PLC using a ladder logic program, which consists of a specific set of instructions which will be used to define the process and control the machine.
Experimental Procedure
The necessary files to carry out the laboratory are available in the control drive. The drive should be visible from the window "computer". pane
T: /PLC_03_washing machine/
Formilize yourself with RSI logix
T:/PLC_03_washing machine/ladder_files/WASH_PRACTICE_ME389.RSS.
2 . Download the file into the PLC processor.
3. change the PLC processor to RUN mode.
4. The practicle file connects the input switches to various outputs.
for example , input 17(I:0.0/7), the start switch, energizes a rung which loads output O12(0:0.12) , the start light.
Notice the activated output will be lit up in the RSLogix window while RSLogix is in online mode.
Notice how the respective LEDs on the PLC processor (micro logix1200) light up when the corresponding inputs and outputs are loaded.
To get started , construct a ladder logic diagram that performs a basic washing process use start switch to initiate the following process. First, filing the tub with both cold and hot water for 3 second, then activate tub full indicate light and start washing which is done by alternately rotating forward and backward each direction for less than 1 second, for a total 5 second. Then stop the motor and use pump to drain the tub for 3 second . Do a 3 second fast forward spin afterwards finally shut off the machine.
Step Action Output Indicator Duration 1 Start O/12 LD13 Entire wash cycle 2 Filling O/3 , O/10 , O/11 LD4, LD11, LD12 3 3 Tubfill O/4 LD5 5 4 Washing O/6, O/13 LD7 , LD14 5 5 Drain O/1 LD2 3 6 Spin O/0 LD 1 3 7 Stop NA NA NARelated Questions
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