text: <s>[INST] Would like to run 1-Powerflex755 drive from two HIM modules, two locations, is this possible Summary: Have a test stand that our engineers want to be able to control from two different locations, can we install a HIM at the drive and one remotely and set them up so they dont interfere with one another [/INST] Hi George All powerflex drives can take 2 HIMs, a local and a remote (DPI port 1 and port 2). The local HIM is normally installed on the face of the drive and the remote is plugged into the DPI port on the bottom of the 755 main control board. An extension cable to the remote him can be used part#1202-C30. For remote HIMs I would use the 20-HIM-C6S. There is also a wireless options 20-WIM-N1 and 20-WIN-N4S that may offer even more flexibility, but I haven't tried those. I would download the manuals to see what they can offer. This may allow the drive mounted HIM to be remote as well. The 2 HIMs can be set up using masks in Parameters (P324 - P328) to allow / deny certain functions by selecting / deselecting DPI 1 and 2. The speed reference source can selected by putting the HIM into manual mode to control the motor speed. Also check out Manual Preload (P331) for remebering/transferring the speed reference. A digital input on the drive can also be used for switching between speed reference sources when there is more than one but I don't think you need that in this instance. (P173-175), Regards Damian \\n </s>