RioRand Upgraded 6V-90V 15A DC Motor PWM Speed Controller 1PC

This is a great inexpensive Replacement for maxxair fans. Variable speed all the way down to zero. Simply replace the control pad and circuit board. You’ll save close to $100 using this.

This unit can be used to control brushed motors. Just the right size for 775 20,000 motors using a bit more current then the upgrade 3018 controllers can provide. It works great with the supplied pot with smooth motor rpm from near 0 to full (20,000?) rpm. It does not work with the pwm output because the supplied voltage is 12 volts and the unit wants 5V. This means the motor rpm can not be controlled by the 3018 controller and must be controlled by hand, so why have CNC control if you are using a knob to adjust rpm?

The controller handled motor counter EMF without any hiccups. Speed range change was smooth with a linear potentiometer. It comes with 3/4 turn 5K pot that works well. Motor does change was also smooth using a10-turn linear pot. Solid construction and interconnects. Tests were at 6A, 13V. Very happy with this product. Great value. Cheaper to buy than purchase the parts and build.

The controller seems to work well enough. I'm not sure what type of crimp connectors you're meant to be able to use with this, as the screw terminals are too narrow for any of the loop connectors I had. I ended up crimping on blades and drilling holes in them - not optimal, but they worked. I kind of wish the potentiometer had an on/off switch built in, as some others I have do, and that the knob was just a bit bigger, but it is what it is. I haven't tried mounting this in a box yet, so not sure how well that's going to work yet. I don't find it getting very warm, but I'm only using it for about a 2.5A max load. So can't say how well it does approaching it's max rated amperage.

works well! Thank you China

Originally I ordered a cheaper speed control for the new shaker motor I installed in my virtual pinball machine. It didn't work. Dropped this one in its place and it did the job perfectly. Easy to install, I just wish the pot wasn't a panel mount and was either mounted to the board or included a small bracket to mount as you like.

Total garbage. It arrived brand new, unopened, zero damage. Looked to be in perfect condition.But it simply DID NOT WORK. NOTHING. Nada.Reading the reviews it seems to be a common issue with this and several other speed controllers.

This PWM seems reasonably well made, has nice set screws for contact wires. Used this on a winshield wiper motor to help regulate wiper speed, but alas, the low position of the knob provides the same wattage as does the high position. So I do not think this purchase was wise. The module works good, just does not achieve the goals I was aiming for.