[PSUBS-MAILIST] PLC Choice

Sun Mar 11 20:36:50 EDT 2018

Hi Alan,
Hah!  That's the same motor that I ordered - should have checked with you
first (1 @ 60Kv and another at 70Kv).

Yes I'm a big fan of the temperature sensing, and the sensors are nice for
FOC control (quieter at slow speeds).

Cheers,
Steve

On Sun, Mar 11, 2018 at 3:32 PM, Alan via Personal_Submersibles <
personal_submersibles at psubs.org> wrote:

> Thanks Steve,
> any information on them is helpful.
> Perhaps Maytech are putting out the Vesc with heatsink as a result of
> problems!
> Not sure if this instigram link works but it is a preview of the Vesc...
> https://instagram.com/p/Bd2GOBLA1rU/
> I bought 6 x 6374 sealed sensored outrunner motors off Maytech that I had
> them wind to 60kv.
> They have a temperature sensor on the hall sensor board that the Vesc
> reads, which
> will be handy for testing. Am running these in oil.
> They are using these motors on electric surfboards. The wiring isn't as
> stiff as the "Saite"
> motors I tried.
> Cheers Alan
>
>
>
> Sent from my iPad
>
> On 11/03/2018, at 12:48 PM, Stephen Fordyce via Personal_Submersibles <
> personal_submersibles at psubs.org> wrote:
>
> Hi Alan,
> Yes I looked at the Maytech VESC builds (and have also ordered a BLDC
> motor sample from them), but the e-skaters do have a few negative things to
> say about it.  I've been testing a "E-SK8" version I got from Hobbyking and
> it's been completely fine, but the FOCBox has all round excellent reviews
> and looks the part - I'd rather pay a bit more for something so critical
> (and I want to be able to use FOC control too).  Since I'll be on-selling,
> hopefully I can get much better than list pricing - I'll let you know if
> I'm doing a bulk order.
>
> Cheers,
> Steve
>
>
>
> On Sat, Mar 10, 2018 at 1:37 PM, Alan via Personal_Submersibles <
> personal_submersibles at psubs.org> wrote:
>
>> Steve,
>> thanks thats good to hear.
>> I bought my Vesc from Maytech in China. They sell them along with a remote
>> controller for skateboard use. They look like they have done a good job, &
>> if they haven't you'll hear about it from the Skateboarding community.
>> My Vesc cost about $100- & they are about to release a Vesc with heat sink
>> in an aluminium housing.
>> The Vesc Maytech sent me needed the firmware updating, & then I had to
>> order
>> an ST link from them to update the firmware. They sent the wrong wires
>> with it.
>> Apart from that, I have been buying bldc motors from them that are good
>> quality.
>> Will let you know when they release this & what the price is if you like.
>> I was looking at the focbox, it looks like they have done a good job with
>> it.
>> Cheers Alan
>>
>>
>> Sent from my iPad
>>
>> On 10/03/2018, at 10:04 AM, Stephen Fordyce via Personal_Submersibles <
>> personal_submersibles at psubs.org> wrote:
>>
>> Hi Alan,
>> I've also been using the VESC brushless motor controller (I use the
>> FOCBOX type, which is sold in Australia) for diver propulsion vehicles and
>> they are fantastic, with all their diagnostics and open source firmware.
>> They also can have a Bluetooth module added so everything can be monitored
>> on a smartphone app (Android).
>>
>> Cheers,
>> Steve
>>
>> On 10 Mar 2018 6:23 am, "Alan via Personal_Submersibles" <
>> personal_submersibles at psubs.org> wrote:
>>
>> Cliff, Steve, (mainly)
>> just an update on where I am with the plc choice.
>> Even though I had done a plc programming course I was getting totally
>> bewildered with all the I/Os & what sort of information I could extract
>> from my motor controller, BMS etc. Have bought a Vesc which is a small
>> electronic
>> brushless speed controller that can read rpm, amp draw & temperature from
>> my
>> motors. I have over 60 I/Os & most are analogue.
>> I ended up contacting an electrician specialising in industrial automation
>> who is also an electronics geek. He is young enough to be up on all the
>> latest
>> technology. He is coming up with all sorts of ways of reducing the I/Os
>> using
>> raspberry pi etc.
>> So glad to leave it in his hands; will see what he comes up with.
>> Alan
>>
>> Sent from my iPad
>>
>> _______________________________________________
>> Personal_Submersibles mailing list
>> Personal_Submersibles at psubs.org
>> http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles
>>
>>
>> _______________________________________________
>> Personal_Submersibles mailing list
>> Personal_Submersibles at psubs.org
>> http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles
>>
>>
>> _______________________________________________
>> Personal_Submersibles mailing list
>> Personal_Submersibles at psubs.org
>> http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles
>>
>>
> _______________________________________________
> Personal_Submersibles mailing list
> Personal_Submersibles at psubs.org
> http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles
>
>
> _______________________________________________
> Personal_Submersibles mailing list
> Personal_Submersibles at psubs.org
> http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.whoweb.com/pipermail/personal_submersibles/attachments/20180312/8baa78a4/attachment-0001.html>