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[pettyofficernick]

Heres one for thw electronics experts, I am getting a voltage reading of 13.4 volts from the output of this esc, but when I put a load (motor) on it, nothing, I have tried several different motors, all of which work fine when connected directly to a battery, but not when connected to the esc. I find this very strange, surely if there is power on the output of the speed controller it should turn the motor. I have replaced all the connections but nothing happens no matter what I do, I have set the esc up according to the manufacturers instructions.
Tha set up is    27 meg tx and rx, Modelmotors direct 777  12v 3.3 ah  SLA battery and Mtronix Viper marine 15A esc.
Many thanks in advance,
Regards,
Nick

[Subculture]

Never had a fault like that on an ESC, sounds really odd. Perhaps the output transistors can supply enough current to power a high impedence volt meter, but flake out when connected to a low impedende source like a motor.

[Netleyned]

Nick,
Is it the plug and play or the one with a set up button ?

If you have a reading of 13.4V Your battery must be tops.

Ned

[pettyofficernick]

It is the one with the setup button, I have carried out the set up routine several tines, to no avail......

[Rottweiler]

Contact Mtronics,and ask for their set up codes.There ARE different sequences for newer and older types,I always disliked the setting up procedure,until I converted to 2.4 Gig,they set it up for you! Having said that I do like mtronics for some things.The twice I have had to contact Paul,he was really helpful,as is Dave at Action.
good luck
Mick F

[malcolmfrary]

Is the 13.4 across the motor terminals, or measured from ground line to one motor terminal or the other?
What happens when you try reverse, with and without the motor connected?
It could just be that the over current detection is too sensitive, and cutting far too early, in which case, its a broken unit

[pettyofficernick]

The 13.4 volts is actually on the output terminals on the esc, when put into reverse, I get -13.4 volts.....

[Tug-Kenny RIP]

If there are No volts showing when a motor is connected across the terminals then the device is not capable of drawing any current.

Try a test with an amp meter in series with one of the motor leads. Another test is to use an oscilloscope across the output wires and observe the waveform, with and without a motor connected.  The ratio of the wave will change with the difference in speed control action.

Going on al the clues I would suggest it's damaged.

Regards

ken

[malcolmfrary]

The 13.4 volts is actually on the output terminals on the esc, when put into reverse, I get -13.4 volts.....

The only other checks that can be done easily are checking output terminal voltage against + and - ve supplies, loaded and not, forward and reverse, but I think that unless that turns up a bit of dud wire somewhere, the answer will be to "mend it with a new one".

[pettyofficernick]

I had checked all the wiring, that was all OK, I have now spoken to Paul at Mtroniks, and it is winging its way to Batley for further investigation....
Many thanks for the input,
Regards,
Nick.