[PSUBS-MAILIST] PLC Choice

[Alan via Personal_Submersibles]

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
>>> 
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