looks like that limits your choice considerably.
why not use two separate power supplies, or use a 24V one and a 12V step down convertor to hook up the arduino to that?
Moderators: rjlittlefield, ChrisR, Chris S., Pau
looks like that limits your choice considerably.
I try to keep my setup as small and simple as possible.why not use two separate power supplies
Adalbert wrote: ↑Thu Dec 23, 2021 12:00 pmSo, I have searched for a good one but I have found only this “funny” one
with 2A and 24V and very low holding torque.
https://www.digikey.de/de/products/deta ... 8/11564499?
I'm a little confused by the specifications.
I missed that very low resistance spec. Most others in the series are 10-12 ohms. Not sure why that motor (and only that one) has such low resistance.rjlittlefield wrote: ↑Thu Dec 23, 2021 1:47 pmI'm a little confused by the specifications.
Along with 2A and 24V, the spec says "Coil resistance 0.7 ohms". At steady state, 2A at 0.7 ohms is only 1.4V. So, I'm thinking that "24V" is actually a specification of maximum voltage applied to quickly overcome inductance. If that's the case, then it seems like a 12V controller would still work OK, just with a slower speed limit.
Am I missing something here?
--Rik
That's the one with the low resistance, pretty high torque, and 24V rating for unknown reason.Adalbert wrote: ↑Thu Dec 23, 2021 2:42 pmWhat about 417-15-08 ?
https://www.linengineering.com/products ... /417-15-08
Some guidance on that may be provided by the Torque Curves section of https://www.linengineering.com/products ... 417-series .ray_parkhurst wrote: ↑Thu Dec 23, 2021 2:46 pmI am completely unsure how well any of these "24V" motors might work at 12V.
great, many thanks for the hint!Below the graph is a set of fields into which values can be placed. If I try plugging in some ludicrously small value for voltage, then I get the error message "Should be greater 5 VDC and be less 80 VDC". Between those values, I see no change to the curves except for the labels on rotation speed, which seem to change linearly in proportion to supply voltage.
As I see the interface, the 417-15-08 holds out well to beyond 1000 rpm at 12V. The 417-09-03 looks good to beyond 500 rpm at 12 V.
Yes, I am looking for one where no steps are skipped. Namely for this solution:Obviously our purposes are the opposite extreme where we want small precise moves but with enough torque so no steps get skipped and things stay put.