text: <s>[INST] IAM Kinetix power size Summary: How to determined the IAM size? I have two questions about the IAM power size. The IAM power size depends from the servomotor size that is connected to the IAM? or, The IAM power size depends from the drives size are connected in the same rack? [/INST] The answer to your question is, BOTH! The best possible way to size Rockwell servo drive products is to download and install Motion Analyser. Give it enough information about the process which you are applying the hardware and you'll get very good and reliable results. One tricky spot is deciding if the multiple axes in the rack will be operating at the same time or in a coordinated manner. Rockwell's default selection for this question is NO, which means the IAM will be sized to the smallest possible load and give an artificially small overall power available. Be careful to set this choice properly so the IAM is sized to the rack properly. This goes towards your second question. If the axes are uncoordinated and do not all operate at the same time, then the individual axis size will likely drive the size of the IAM, (your first question). Proper sizing of this module is a balancing act. It is conceivable that you could end up with an IAM that is rather larger than you need for the individual axis attached to the drive because you need the larger overall power for the entire rack. Does that answer your question adequately? I DO strongly recommend using Motion Analyser. It's a free download and is really quite an excellent software tool. I'm NOT an employee of Rockwell Automation so this is not a sales pitch. \\n </s>