11/2/2023 1:36 PM | |
Joined: 8/27/2020 Last visit: 2/8/2024 Posts: 2 Rating: (0) |
Hi I have a logo plc that we use to control an ovens temperature. The temperature must go up to 50 degrees and then regulate their for 2 hours. Then it needs to go to 70 degrees and regulate at 70 for 2 hours. Then it must go to 90 degrees and regulate at 90 for 2 hours. Then it needs to go to 120 degrees and regulate at 120 for 18 hours. The regulating works when we do it for 30 minutes on each temperature but as soon as I set it to the longer times it goes to 50 degrees and regulate then it goes to 70 degrees and regulate then it goes to 90 degrees but as soon as it reaches 90 degrees everything resets. Is their anything that I can look at to overcome this problem. Thank you Johnny van Niekerk AttachmentIsotec_Oven_2023_09_09.zip (447 Downloads) |
Last edited by: AutoGen_6630048 at: 11/03/2023 04:00:43 |
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11/2/2023 1:40 PM | |
Joined: 12/18/2014 Last visit: 10/21/2024 Posts: 34001 Rating: (4229)
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Please upload your program as a ZIP file. Without knowing your program, no good help can be given to you. |
11/3/2023 4:02 AM | |
Joined: 8/27/2020 Last visit: 2/8/2024 Posts: 2 Rating: (0) |
I've attached the program as requested in the origanal post thank you for the help |
11/3/2023 4:59 PM | |
Joined: 6/11/2019 Last visit: 10/20/2024 Posts: 2293 Rating: (99) |
No chance of getting through there |
11/6/2023 9:46 AM | |
Joined: 6/19/2019 Last visit: 10/18/2024 Posts: 701 Rating: (74) |
Hello, I do example for you, I don't know exatly all inputs outputs in your program, just do start heating from I1 stop heating from I2 or all 4 phases gone, keeping temperature with analog threshold trigger for every heating phase i will put 2 latching relays (one for follow when setpoint reached other when time ended) and same with all 4 phases. You can study how my example is done and if you understand it you can use it :) Good luck AttachmentHeating.zip (383 Downloads) |
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