Tonegawa PS050 servo and Pololu Micro Maestro 6-Channel USB

Support Servo controllers and servos
1

Maybe some servo newbie questions below… :unamused:

I have a Tonegawa PS-050 servo which I have connected to my Pololu Micro Maestro 6-Channel USB
servo controller.

I have connected one of the channels on the Maestro to my Tonegawa PS-050 servo motor.
To test that everything seems to work correctly I use the Maestro Control Center (MCC).

In the MCC, tab “Status” I drag the slider from 1250us to 1750us. The servo moves! :smiley:

But, shouldnt the servo move like 180 degrees?
The servo just move about 30 degrees.

If I have understood correct 1500us is the usual neutral postition for all servos and then 1250us shall result in a movement -90 degrees and 1750 +90 degrees relative the neutral position.

Or am I doing something wrong?

/Anders

2

Hello, Anders.

That depends on what model of servo you have, and it can also vary from unit to unit. Do you have some documentation for this particular model that specifies the pulse widths? None of the servos I have seen give you 180 degrees for such a narrow band of pulse widths. Please see the FAQ entitled “How do I use my Maestro servo controller to get the maximum possible range of motion from my servo?” on this page:

pololu.com/catalog/product/1350/faqs

–David