Micro Maestro 6-Channel Servo Controller & Torxis 4 wire servo

Support Servo controllers and servos
1

I have a Pololu Micro Maestro 6-Channel USB Servo Controller and was trying to control a Torxis 4 wire servo (Torxis Servo, Industrial, Outdoor Rated - Gear Wurx) with it. At one point, I had it set up to successfully control directly with an Arduino (it was a while ago, so the setup isn’t entirely fresh in my head), but now I was wanting to control it directly with the Maestro.

Due to the servo being 4 wire (ground, voltage, signal, signal-ground), instead of 3 (ground, voltage, and signal), I was unsure how it should be wired for controlling with the Maestro. Can this be done (I assume it can, since the green wire is just another ground, but for the white signal)? And if it can be done, would you be able to provide an explanation on how to do it?

I’m guessing it is simple (but may be wrong), but I am not sure how it should be and am hoping not to ruin the motor (or spend an abundance of time if trivial) by me guessing incorrectly.

I’m also including the link to some documentation on the Torix servo, from Pololu, in case useful:

Thanks

2

Hello.

I suspect the motor power ground (black wire) and signal ground (green wire) are connected internally and are just included for convenience when powering the servo separately from your RC source. You can check that they are a shared ground by doing a continuity test with a multimeter. If they are, you should be able to leave the green wire disconnected and just use the red, black, and white wires as you would with a normal servo. If you want to be safe, you can connect the green wire to a different ground pin on the Maestro (all of the GND pins on the Maestro are connected internally).

Brandon

3

You were correct. It showed continuity when tested, and is now working wired and working. Thanks.

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