[PSUBS-MAILIST] Speed controllers

[Jon Wallace via Personal_Submersibles]

I purchased 50A models although they don't sell the one I purchased any 
more.  My rationale is that I am unlikely to be at full throttle for any 
extended period of time.  I could even clip it at 40amps max through 
software.

Jon


On 4/19/2016 5:45 PM, Alec Smyth via Personal_Submersibles wrote:
> Hi all,
>
> 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:
>
> http://www.roboteq.com/index.php/docman/motor-controllers-documents-and-files/documentation/datasheets/hbl23xx/59-hbl23xx-datasheet/file
>
> 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).
>
> Anyone have any suggestions for other cost-effective controllers to 
> consider?
>
>
> Thanks,
>
> Alec