Sick and Tired of Waveline pumps

[_Adrian_]

Originally Posted by daplatapus

Pump. Connector from controller has 3 pins

front



back



sorry, no gut shots of the pump. I can get at the impeller but thats it. Pretty sure it'll all be encased in epoxy inside anyway...

Ill buy those off you if you have given up on them

I have a project on the horizon that involves DUAL high current BLDC controller with integrated I2C control

I understand the need of these manufacturers to "compact" these units to make it easier to hide, however my issue is with lack of cooling which in the end reduces overall life of the unit. My idea always been over engineer it and make sure that the unit can drive 5 to 10 times its normal workload.

Would you not pay more money to know your never have to upgrade another controller ??

[daplatapus]

Lol, I haven't given up on the pump yet. I love the pumps. I love the original controller. But poor cooling, fan and bearing designs on the controller resulted in burnt out controllers.
I really want to know what the heck the difference is in the gen1 controllers and any of the next gens. I still have a brand new controller (gen1) and it easily pushes probably 1000 gph at 12' of head. Switch to the other controller...less than 2-300 gph. It's completely gutless. I've had one of the guys from Waveline tell me maybe the magnet has de-magnetized, they sent me new impellers.
For some reason no one over there believes me that it is 100% the controller.

[_Adrian_]

My plan is to use an integrated H bridge from ST.
It's the only simple alternative that supports 30A continuous duty at 600V for a sensor less BLDC application. The motor might be rated at 170W and 24V... with a bit of quick math 170/24=7.03A is actual draw.

Now to actually further get into engineering we still don't know whatever its a Wye or Delta configuration of the windings inside the motor.