3/3/2024 11:31 AM | |
Joined: 9/27/2006 Last visit: 5/20/2024 Posts: 12257 Rating: (2668) |
Hello; The attached screenshot shows the technical description of the Logo 8! module you are asking about. As you can see, it us an analog input module, accepting signals from 0-10 V or 4-20 mA. As such, it will accept sensors (of whatever type, and any manufacturer) that outputs a voltage or current signal, within the stated ranges. To distinguish between them in your program you will need to scale the input analog signal to engineering values (gpm rpm , m/s, degrees C) that represent the physical value you are measuring: flow, speed, temperature... https://support.industry.siemens.com/forum/ca/en/posts/scaling-analog-input/261636 Hope this helps Daniel Chartier |
Last edited by: dchartier at: 03/03/2024 11:39:41 |
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3/6/2024 12:29 PM | |
Joined: 12/18/2014 Last visit: 5/21/2024 Posts: 33068 Rating: (4084)
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Take also a look of the electric connection (from the data sheet). |
Last edited by: ixo65 at: 03/06/2024 12:32:46 |
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3/6/2024 2:35 PM | |
Joined: 12/15/2023 Last visit: 4/19/2024 Posts: 58 Rating: (0) |
I would like to know the engine temperature |
3/6/2024 3:16 PM | |
Joined: 12/15/2023 Last visit: 4/19/2024 Posts: 58 Rating: (0) |
I'm talking about engine body temperature. |
3/8/2024 11:31 AM | |
Joined: 9/27/2006 Last visit: 5/20/2024 Posts: 12257 Rating: (2668) |
Hello;
What will measuring the engine body temperature tell you (or the operators) about the status of your motor, about it'd diagnostics? Basically, nothing useful. The critical motor temperatures you should monitor (for electrical motors) are the winding and the bearing temperatures they will tell you whether the motor is running well or if it is degrading, "running hot". But to measure these temperatures the sensors (PT100 in your case) must be installed inside the motor, directly on the motor windings or inside the bearings casing, as close as possible to any potential hot-spot. That way the temperature value you monitor on the PLC can really help you evaluate your motor's condition. Unfortunately, that means the motor must come from the manufacturer with the sensors installed (included when you configured the motor specs), or you can make sure that these temperature probes are integrated when you have the motor rewound. There are many sources of information on temperature monitoring for electric motors, here is one: https://www.tytorobotics.com/blogs/general-knowledge/how-to-check-electric-motor-temperature-sensor Hope this helps, Daniel Chartier |
Last edited by: dchartier at: 03/08/2024 11:35:29 |
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