I just received an order yesterday and didn't get to start messing around with it til this morning. Out of the 4 servos (TowerPro SG-5010) I received, only 2 of them work at this point. One seems to be completely seized up and the other one can be turned by hand (albeit with some force), but only rotates about 10-15% of it's range in one direction when powered/connected.
I have them connected to my raspberry pi via the AdaFruit Servo Driver (and power supply). I was tested one at a time on channel 15 using the Servo_Example.py script. The first one was run for maybe 2-3 minutes total with various tweaks to the script. It eventually completely seized up. The second one, operated a little longer then stopped responding after moving the initial 10-15%. In both cases, the bottom of the servo was extremely hot to the touch.
I have run the other two servos continuously for longer than either of those servos.
Does anyone know what could have caused this? Like i said, i was tweaking the settings in the script a bit on the first one (frequency, servoMin and servoMax) to see what they did, but i did not think they would fry the servos.
With the TowerPro SG-5010, are there suggested ranges for the frequency, servoMin and servoMax?