[PSUBS-MAILIST] PLC Choice

[Stephen Fordyce via Personal_Submersibles]

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
>
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