I've got a drum filter (like a big washing machine) for the pond. It's driven by a 24v worm-drive gearbox DC motor thing. Earlier this year the motor/drive packed up so I replaced it with a slightly faster turning unit as the original one was way too slow and wasted loads of water.
The following page has all the the spec. etc. http://www.motionco.co.uk/motors-worm-gearbox-gearmotor-c-54_73.html
OEM unit was the last one on the list GMW40W0634 which I replaced with GMW40W0505 - Speed and torque on the new unit are perfect however the initial start-up current (apparently) of the new unit overloads the 24v 2A supply PSU causing it to shut down and re-start and so the on-going cycle continues.
Manufacture has advised this doesn't happen on the correct unit (slow) drive.
If I rotate the drum to take up the slack in the gears etc, on start-up the drum rotates without any issues so presumably the fraction of a second on no-load when the slack is taken up allows things to work perfectly.
The following vid. is far more useful to demonstrate the issue. https://www.dropbox.com/sh/iy1g8ddw2io60tx/AABU7wnygxcXqd5n4Q7OxVWBa?dl=0 https://tinyurl.com/ybnzufb3
I want to stick with the new motor/gearbox because it's way more suited to the drum cleaning operation and uses a fraction of the water to clean a greater expanse of filter screen. Could anyone suggest a suitable thermistor(?) to stick into the 24v Motor feed that would limit the inrush current to not exceed the 2 Amp cut-off of the PSU? (12 ohm ?)
Or... am I braking up the wrong tree or is there another solution? I suppose a beefier 24v supply would do the trick?
Cheers All Pete