There are 3 basic types of Acramatic 950 OSAs (Operator Station Assembly): RSKI, TSKI, and SSKI. The SSKI's are very rare, and I'm not going to cover them. When you send your OSA in to us to get updated, we like to know what kind of unit we are getting ahead of time so we are prepared.

  Most of the time after a motor, tach, or drive replacement, the gain will be off. This article will explain the correct way to reset the gain. We are going to assume a gain of 1.00 and this example is based on rel 3.x software. This procedure has worked on every drive/control that I've ever worked on that is analog based.