2/25/2021 10:44 AM | |
Joined: 12/13/2019 Last visit: 8/16/2022 Posts: 21 Rating: (0) |
Hello, I am making a program for LOGO, which will calculate RPM variation of a motors which we test. This way we can detect some problems with gearbox, etc.. I used RPM analog output 0-4V of the frequency drive as feed for the LOGO. Program is attached. I used ANALOG comparator to calculate the RPM variations for the last 1 second. Then RPM variation is shown on display. But there are more ways how to do this- for example using Mathematical instruction., etc Is this the best way considering advantages/disadvantages - or anyone have any ideas ? Thanks AttachmentVoltage_convert_to_speed_0BA8.Standard.zip (310 Downloads) |
2/25/2021 1:03 PM | |
Joined: 12/18/2014 Last visit: 9/30/2024 Posts: 33855 Rating: (4210)
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The attached program is not yours, it is from me. Can I measure -4V to +4V with Analog input of LOGO ?In this attached program I don't see any analog comparators.
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Last edited by: ixo65 at: 02/25/2021 13:04:59 |
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2/25/2021 1:35 PM | |
Joined: 12/13/2019 Last visit: 8/16/2022 Posts: 21 Rating: (0) |
Yes, indeed. I have just uploaded a wrong file. It's this one which I made- see the attached file.
Attachmentmotor RPM variation calculation.zip (328 Downloads) |
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