Motor Reverser

[bob34287]

Looking for a 24VDC 20AMP automatic motor reverse. If the motor starts to stall I would like it to stop, pause, and then reverse for 10 seconds then pause and go back to running forward. Anyone know if a circuit is available.

 

[Tony Stewart]

One can design a control system sensing over currents stop and go thru this sequence , but I doubt if there is one off the shelf. But a motor operating at full power will dra 10 times the current stalled and start but can choose and energy threshold = Power * time that is more than the starting energy to do this but even that is undefined.

 

[ZipZapOuch]

Looking for a 24VDC 20AMP automatic motor reverse. If the motor starts to stall I would like it to stop, pause, and then reverse for 10 seconds then pause and go back to running forward. Anyone know if a circuit is available.

Define "starts to stall". Do you mean the motor actually stalls (for how long), or it simply starts slowing RPM from some set speed? If so, by how much?

 

[Nigel Goodwin]

Looking for a 24VDC 20AMP automatic motor reverse. If the motor starts to stall I would like it to stop, pause, and then reverse for 10 seconds then pause and go back to running forward. Anyone know if a circuit is available.

Looks an obvious application for a micro-controller, and associated circuitry - but it would likely require an individual solution, not just a 'one size fits all'.

 

[danadak]

An H Bridge would be striaght forward method of driving motor and lend
itself to reversing :

https://www.st.com/resource/en/application_note/an4892-vipower-m05-hbridges--hardware-design-guide-stmicroelectronics.pdf

https://www.ti.com/lit/pdf/sboa174

https://ww1.microchip.com/downloads/en/appnotes/00905a.pdf

Bits and pieces :

https://www.analog.com/media/en/reference-design-documentation/design-notes/dn407f.pdf

Ap note using specific parts but general principles apply :

https://www.ti.com/lit/ug/tidues7/tidues7.pdf?ts=1698400172055&ref_url=https%253A%252F%252Fduckduckgo.com%252F

Regards, Dana.

 

[bob4bvm]

Thx Dana,
That TIDA is just too slick !
Good old T.I. does it again
Wish i had seen that when i was building my telescope controls !
Bob