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Author Topic: Speed Controller for Tug  (Read 633 times)

skov

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Speed Controller for Tug
« on: March 15, 2018, 01:38:30 PM »

Hi All,

Can anyone suggest a speed controller for my tug please?

The tug is a springer scaled up by 25%, the motor is an Mtroniks M600, batteries are 12V SLA.

I was using an Mtroniks Viper Marine ESC, but that started emitting clouds of noxious smoke last time I connected the battery to it...

Thanks


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Netleyned

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Re: Speed Controller for Tug
« Reply #1 on: March 15, 2018, 03:13:26 PM »

Sounds like a case of reverse polarity
if the unit smoked on connecting to
power source.
Any fuses should have protected it if
it was on load when it happened.


Ned
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Smooth seas never made skilful sailors
Up Spirits  Stand fast the Holy Ghost.
http://www.cleethorpesmba.co.uk/

Netleyned

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Re: Speed Controller for Tug
« Reply #2 on: March 15, 2018, 03:16:15 PM »

Sounds like a case of reverse polarity
if the unit smoked on connecting to
power source.
Any fuses should have protected it if
it was on load when it happened.


I am assuming the sla's are in parallel
and not inadvertently in series.


Ned
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Smooth seas never made skilful sailors
Up Spirits  Stand fast the Holy Ghost.
http://www.cleethorpesmba.co.uk/

chas

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Re: Speed Controller for Tug
« Reply #3 on: March 15, 2018, 04:53:57 PM »

Stall current of the motor is 27 amps, so any speed controller with a sensible margin over that will be ok.
Mtronics, electronize and Action are all popular for good reasons.
  How big is the propeller ? And is it a direct or geared drive?
  Others will disagree, but I would avoid Chinese speed controllers, especially for this motor.
  Always connect the battery right way round, the magic smoke you had is familiar to too many of us.
Chas



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skov

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Re: Speed Controller for Tug
« Reply #4 on: March 15, 2018, 11:16:25 PM »


I'm using a 45mm prop, direct drive.

I definitely didn't connect the batteries the wrong way round, so not sure why it blew up.
The only change I made was to add a small fan next to it as I felt it was getting a bit warm.


I'll have a look at electronize and action thanks.
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