I have a NI PXI-7350(Motion Controller), a NI UMI7774 (Universal Interface), and a NI P70530(Stepper Drive) and I tried linking up a new NEMA 11 stepper motor linear actuator from Hayden Kirk and kept getting a constant red blinking light on the driver. I then connected my new NEMA 23 stepper motor linear actuator from Hayden Kirk and the driver had the go ahead green light and it worked fine. I consulted the manuals and saw that the driver was only compatible for NEMA 17-34 Steppers. I tried the third party setting as well for the NEMA 11 to no avail. Does anyone know of a NI Stepper Drive that is compatible with my UMI and Motion Controller and also is compatible with a NEMA 11 and NEMA 42 (another motor I need controlled) stepper motors?????