11/22/2023 3:38 PM | |
Joined: 12/18/2014 Last visit: 10/21/2024 Posts: 34001 Rating: (4229)
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Well then I don't want to bother you any further... |
11/22/2023 6:40 PM | |
Joined: 3/30/2020 Last visit: 10/21/2024 Posts: 4884 Rating: (996) |
We had a LOGO! project that used several 24V motors of truck windshield wipers. The motor had gearing too. There was no speed control and used an H-bridge configuration of relays. The relays could take the current load. (big) Inductive loads is not friendly to LOGO! outputs. We had much teething problems. Several motors quickly gave us problems. The build of the switching circuit that could handle the inductive load was important. Also some fuses for good measure. The measuring element on the motor checked that the motor moved at speed. Heat build-up on the motor is something that sneaks up on you over time. This occurs when the motor is slipping.. not moving at the commanded speed, or driving the motor too slowly. A PWM board feels right. But perhaps something from GeckoDrive.com would be a better call for what you are trying to do. But that depends on the complexity of the speed and movement co-ordination. My opinion is that you find the drive and motor combination first. Then decide which controller is the best suited. Finding a drive for you is unfortunately beyond my scope. But think "fighting robots" as a source of information. |
Last edited by: qwazee at: 11/22/2023 18:42:55Activities of this user is voluntary. There is no obligation or liability placed on this user. Though optional, your 'please' and 'thank you' is highly valued. |
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11/22/2023 6:46 PM | |
Joined: 10/30/2023 Last visit: 11/28/2023 Posts: 5 Rating: (0) |
This is great, thank you. We have had some teething issues as well. The motors are generally fine, but if they get stalled or slowed by a mechanical failure they draw too much current. We installed fuses as we were melting wires! I have a PWM controller that I will try to wire into the system. We had the motors running with just a power supply and PWM, but we were having the PWM's fail. Thanks again for the info! |
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