3 Phase 8 Pole PMAC controller??

[mr.pibb]

Hello. I am fairly familiar working with controllers for brushed dc motors but new to brushless.
I have purchase the motenergy PMAC-SS (ME0201014201) Brushless Motor (directly replacement for the etek)
Specs found here:
http://www.electricmotorsport.com/store/ems_ev_parts_motors_pmac-ss.php
http://www.motenergy.com/me0201014201.html

Can anyone recommend a controller to use? Im looking at the Kelly because they are only around $250-300. electricmotorsport recommends a $600 Sevcon Gen4 which maxs at 180a peak and my motor is rated for 300a peak for 1 minute. They say: "These patented axial flux motors are designed to work with sinusoidal (sine wave) controllers such as the sevcon." Apprenenly it needs a Phase 8 Pole PMAC controller. There are many other controllers out there too. I just want to be sure that I will not damage my motor. Has anyone had any experience with this motor/controller configuration. Price is not a total constraint but $600 seems a little high to me. Also I would like to utilize the full 300 peak amps because I will be pulling over 1500 lbs with riders batteries and cargo. Im going to need it to get the quad started rolling. After I get moving I only plan to go maybe 20-30 mph max.

I got the motor for a good price, so there may have been better options for me out there but this is what I went with. I will be using it to power my zem quadracycle. My hope is that I can find a relatively cheap bevel gearbox to be able to mount it to my driveshaft axel. I am tight on space and $$ so I may end up going chain driven but it would be so much cooler to use a gearbox

THANKS FOR YOUR INPUT GUYS! If anyone is in the fort Lauderdale area I welcome you for a ride once I get it going!

 

[mr.pibb]

Oh I forgot to mention is there a controller that has the ability to customize the output so as to act as a governor? Here in Florida there is not a wattage limit for electric bikes but *technically* the bike has to go under 20 mph on flat ground. I would like to go 25-30 most of the time but be able to set the controller to max at 20 mph when I have to be legal.

 

[nechaus]

you could go a sevcon, you could use a kellycontroller as well, would be cheaper,

You connect a throttle to the controller to govern the speed? is this what u mean? 3 speed switches can be used,

 

[mr.pibb]

The throttle is how you control speed. But I mean to set it so at full throttle I cannot go over 20 mph. Im now looking at the alltrax spm controllers. I can get a 72v 300 amp (spm-72300), for $432 on ebay. The same amp sevcon is $900 and the Kelly is $500. Is alltrax a reputable manufacturer? It has a usb port to connect to the computer which I suspect I can do what I want to limit the speed to 20 mph. Im thinking it would be a good choice. I see lots of other people have used them here on the forum. Just wanted to make sure there isn't any common problems or things to look out for. Thanks!

 

[owlexmyth]

If you're just starting out learning about EVs, you should probably start out with a better controller-why give yourself a poor impression of EVs right out of the gate?
T be fair, you should also understand that Kelly controllers come with poor user guides/diagrams, which causes user-error and, results in dead controllers. They will usually replace controllers, especially if you're persistent.

All Kelly controllers are over-rated in terms of power. Expect to get 60-80% of peak current listed for Kelly controllers. I tested 5 of their controllers.
Kelly controllers are also poorly engineered, so you'll likely to replace it in a few years, unless you are very gentle and reduce its power output.

A cool thing about many Kelly controllers is that you could reprogram them for the lower output that you mentioned the need for- to stay within the legally requirements. Many other controllers can be reconfigured as well.

I started out using Kelly, trying to save a buck, and now I am not using any of the Kellys I have left- in my vehicles. One Kelly failed in a capacitor explosion that blew a hole the size of a dime in the aluminum case. Others just don't put out the power that I need, so I use them for testing/experimenting when I need something that can be killed without bringing me to tears.

For less than the price of two Kellys (if yoiu buy one, you'll likely experience some type of an early failure and end up buying two) you can get one good controller, built in USA, that will serve you for years. Shoot for a higher power product than you need (10-20% over your actual needs {40% higher for Kelly}), which will also push your investment further by reducing the heat punishment on its internals.