This won’t mean much to anyone but I have it (IVL2-7/5) working. Trying to understand Russian datasheets on the IVL2-7/5 VFD and piecing together bits of info from around the web and I have it working. It was like some sort of secret/puzzle that you had to pass to be accepted by other engineers. I have that same feeling I had with A Blinking Red LED. Yeah Baby!
Get the IVL2-7/5 Datasheets Here