CIM Motor Reversing

[parbas]

We're having an issue with a CIM motor operating in reverse. In our code, we have a CIM motor set to go forward for half a second and then in reverse for half a second (both at full speed) at the press of a button. The issue is that the motor does not go back to it's starting position like we thought it would. It goes further back than it was when it started, which is causing an arm to move further and further back with each button press.

Any ideas?

Thanks!