<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto"><div>I have never as any problem. BTW, the 1/4" spade connectors are also used inside the motor to connect the 10 AWG cables with the brushes. Make sure you get good quality spade connectors designed for 10 AWG wire. Don't use cheap spade connectors you would find at Harbor freight or one of the big box stores. Digikey has good spade connectors. </div><div id="AppleMailSignature"><br></div><div id="AppleMailSignature">Btw, I have been driving these MK boards pretty hard with my new variable pitch prop pushing 60 amps at times. No issue with the controllers. </div><div id="AppleMailSignature"><br></div><div id="AppleMailSignature">I found a nice undocumented feature of the MK controllers. If at low rpm the motor torque spikes like what happen if the prop fouls, the controller goes into a protection mode. On one of my dives I had a root lodge in my thruster between the ducted nozzle and prop. The MK controller protected the electronics. After pulling the root, the system returned to working fine. I found out about this when I tried to measure the 0 rpm max torque of the motor. </div><div id="AppleMailSignature"><br></div><div id="AppleMailSignature">Cliff<br><br><br><div>Cliff Redus</div></div><div><br>On May 5, 2016, at 2:33 PM, Alec Smyth via Personal_Submersibles <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>> wrote:<br><br></div><blockquote type="cite"><div><div dir="ltr">Hi Cliff,<div><br></div><div>It appears the MK controller will do just what I need it to, but there is one detail that has be a bit concerned. From what I see it appears the main motor current is all going through a single spade connector. Close to 50 amps through one of those little guys is a lot, and the connectors themselves don't take very fat cables. Have you had any issues with that? </div><div><br></div><div><br></div><div>Thanks,</div><div><br></div><div>Alec</div></div><div class="gmail_extra"><br><div class="gmail_quote">On Tue, Apr 19, 2016 at 10:38 PM, via Personal_Submersibles <span dir="ltr"><<a href="mailto:personal_submersibles@psubs.org" target="_blank">personal_submersibles@psubs.org</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="auto"><div><a href="http://m.ebay.com/itm/MINN-KOTA-TRAXXIS-TROLLING-MOTOR-MAIN-CONTROL-BOARD-PN-2184017-OR-2184027-/371336409933" target="_blank">http://m.ebay.com/itm/MINN-KOTA-TRAXXIS-TROLLING-MOTOR-MAIN-CONTROL-BOARD-PN-2184017-OR-2184027-/371336409933</a></div><div><br></div><div>Standard part that can be ordered just about everywhere. Shows up on eBay quite often. MK part no. is 2184017.<br><br><br><div>Cliff Redus</div></div><div><div class="h5"><div><br>On Apr 19, 2016, at 9:24 PM, Alec Smyth via Personal_Submersibles <<a href="mailto:personal_submersibles@psubs.org" target="_blank">personal_submersibles@psubs.org</a>> wrote:<br><br></div><blockquote type="cite"><div><div dir="ltr"><div>Thanks Cliff. Is the controller a component you pulled from inside the MK trolling motor or is it a standalone product? I did a few searches and have not turned up anything standalone. I do have such a unit (really old) but it's for a way lower-powered motor than the 101s.</div><div><br></div><div>Best,</div><div><br>Alec </div></div><div class="gmail_extra"><br><div class="gmail_quote">On Tue, Apr 19, 2016 at 9:58 PM, via Personal_Submersibles <span dir="ltr"><<a href="mailto:personal_submersibles@psubs.org" target="_blank">personal_submersibles@psubs.org</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="auto"><div>Alan/Alec, I use Minn Kota 36v controllers for each of my 4 thrusters. They have worked great. They are potted and rugged. They have an internal relay with a dead band around 2.5v signal voltage. This means that absolutely no current flows even if you left the motor controller powered up while in the garage.</div><div><br></div><div>My previous motor controller for my big traction motor was from Curtis. This worked great but generated a high pitch noise that was irritating.<br><br><br><div>Cliff Redus</div></div><div><div><div><br>On Apr 19, 2016, at 6:35 PM, Alan James via Personal_Submersibles <<a href="mailto:personal_submersibles@psubs.org" target="_blank">personal_submersibles@psubs.org</a>> wrote:<br><br></div><blockquote type="cite"><div><div style="color:rgb(0,0,0);font-family:HelveticaNeue,Helvetica Neue,Helvetica,Arial,Lucida Grande,sans-serif;font-size:16px;background-color:rgb(255,255,255)"><div><span>What did Cliff use?</span></div><div><span>He has been through this process recently with a 101.</span></div><div><span>Alan</span></div><div><br><br></div><div style="display:block"> <div style="font-family:HelveticaNeue,Helvetica Neue,Helvetica,Arial,Lucida Grande,sans-serif;font-size:16px"> <div style="font-family:HelveticaNeue,Helvetica Neue,Helvetica,Arial,Lucida Grande,sans-serif;font-size:16px"> <div dir="ltr"> <font face="Arial" size="2"> <hr size="1"> <b><span style="font-weight:bold">From:</span></b> Alec Smyth via Personal_Submersibles <<a href="mailto:personal_submersibles@psubs.org" target="_blank">personal_submersibles@psubs.org</a>><br> <b><span style="font-weight:bold">To:</span></b> Personal Submersibles General Discussion <<a href="mailto:personal_submersibles@psubs.org" target="_blank">personal_submersibles@psubs.org</a>> <br> <b><span style="font-weight:bold">Sent:</span></b> Wednesday, April 20, 2016 11:12 AM<br> <b><span style="font-weight:bold">Subject:</span></b> Re: [PSUBS-MAILIST] Speed controllers<br> </font> </div> <div><br><div><div><div dir="ltr"><div>No, the one I was considering was not for brushless motors. It's the Roboteq XDC2460, rated for 80A continuous duty per channel. But now I'm looking at Kelly I really like what I'm seeing there too, and Curtis seems to be similar. This will probably come down to a decision between a more advanced dual channel from Roboteq or a super simple single-channel controllers from the likes of Curtis/Kelly. In general if the simpler one can do the job, it's the one I would prefer even if it cost the same. </div><div><br clear="none"></div><div>Thanks guys for all the input!</div><div><br clear="none"></div><div>Alec</div></div><div><br clear="none"><div>On Tue, Apr 19, 2016 at 6:09 PM, Alan James via Personal_Submersibles <span dir="ltr"><<a href="mailto:personal_submersibles@psubs.org" rel="nofollow" shape="rect" target="_blank">personal_submersibles@psubs.org</a>></span> wrote:<br clear="none"><blockquote style="margin:0px 0px 0px 0.8ex;padding-left:1ex;border-left-color:rgb(204,204,204);border-left-width:1px;border-left-style:solid"><div><div><div style="color:rgb(0,0,0);font-family:HelveticaNeue,Helvetica Neue,Helvetica,Arial,Lucida Grande,sans-serif;font-size:16px;background-color:rgb(255,255,255)"><div><span>Hi Alec,</span></div><div dir="ltr"><span>that one says brushless?</span></div><div dir="ltr"><span>On the Kelly faq page for selecting controllers it suggests.....</span></div><span></span><h2 style="font:17px/25px Oswald,sans-serif;margin:1px 1px 3px;padding:0px 0px 10px;color:rgb(64,64,64);text-transform:uppercase;text-indent:0px;letter-spacing:normal;word-spacing:0px;white-space:normal;font-size-adjust:none;font-stretch:normal;background-image:none">HOW TO CHOOSE A SUITABLE CONTROLLER FOR THE MOTOR?</h2><div><div style="margin:0px 0px 10px;padding:0px">Usually the performance will be optimized if the power of the controller is 2.0-3.0 times of the motor's.</div></div><div dir="ltr"> I guess that means if you have a 2000W motor you get a controller whose continual</div><div dir="ltr">amp rating X max voltage is at least 4000W.</div><div dir="ltr"> I have heard that it is better to aire on the safe side as some manufacturers over rate</div><div dir="ltr">their controllers. Kelly have a reputation of being good & cheap, & their ratings accurate,</div><div dir="ltr">however Hugh has had problems with them & I wired up mine yesterday & the ON light</div><div dir="ltr">isn't working when powered up. I put power on it once without the pre-ignition resister</div><div dir="ltr">so this may have stuffed it, but surely it wouldn't be so fickle!</div><div dir="ltr">Alan</div><div dir="ltr"><br clear="none"></div><div><span></span><br clear="none"></div><div><br clear="none"><br clear="none"></div><div style="display:block"> <div style="font-family:HelveticaNeue,Helvetica Neue,Helvetica,Arial,Lucida Grande,sans-serif;font-size:16px"> <div style="font-family:HelveticaNeue,Helvetica Neue,Helvetica,Arial,Lucida Grande,sans-serif;font-size:16px"> <div dir="ltr"> <font face="Arial" size="2"> </font><hr size="1"><span> <b><span style="font-weight:bold">From:</span></b> Alec Smyth via Personal_Submersibles <<a href="mailto:personal_submersibles@psubs.org" rel="nofollow" shape="rect" target="_blank">personal_submersibles@psubs.org</a>><br clear="none"> </span><span><b><span style="font-weight:bold">To:</span></b> Personal Submersibles General Discussion <<a href="mailto:personal_submersibles@psubs.org" rel="nofollow" shape="rect" target="_blank">personal_submersibles@psubs.org</a>> <br clear="none"> </span><b><span style="font-weight:bold">Sent:</span></b> Wednesday, April 20, 2016 9:45 AM<br clear="none"> <b><span style="font-weight:bold">Subject:</span></b> [PSUBS-MAILIST] Speed controllers<br clear="none"> </div> <div><div><div><br clear="none"><div><div dir="ltr"><div>Hi all,</div><div><br clear="none"></div><div>I need to finalize my selection of speed controllers for Shackleton over the next week or so, and at first blush am looking at this one from Roboteq:</div><div><br clear="none"></div><div><a href="http://www.roboteq.com/index.php/docman/motor-controllers-documents-and-files/documentation/datasheets/hbl23xx/59-hbl23xx-datasheet/file" rel="nofollow" shape="rect" target="_blank">http://www.roboteq.com/index.php/docman/motor-controllers-documents-and-files/documentation/datasheets/hbl23xx/59-hbl23xx-datasheet/file</a></div><div><br clear="none"></div><div>There will be two of them, each driving a pair of MK101 thrusters. Roboteq offers a controller family that is a step down from this and still handles the required amperage, and which is tempting because it's much less expensive. However, the specs are too close for comfort (50A continuous duty rating vs. MK101 requirement of 46A).</div><div><br clear="none"></div><div>Anyone have any suggestions for other cost-effective controllers to consider?</div><div><br clear="none"></div><div><br clear="none"></div><div>Thanks,</div><div><br clear="none">Alec</div></div></div><br clear="none"></div></div><span>_______________________________________________<br clear="none">Personal_Submersibles mailing list<br clear="none"><a href="mailto:Personal_Submersibles@psubs.org" rel="nofollow" shape="rect" target="_blank">Personal_Submersibles@psubs.org</a><br clear="none"><a href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles" rel="nofollow" shape="rect" target="_blank">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</a><br clear="none"><br clear="none"><br clear="none"></span></div> </div> </div> </div></div></div></div><br clear="none">_______________________________________________<br clear="none">
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