How do ATV drives enable high definition speed reference?


11 October 2022

Write CMI bit 9=1 will enable high resolution in LFR as explained below:
The high resolution ( CMI=512 in decimal), is activated when it's write only one time by PLC. So no need to write it in permanent.
Even when the drive loose commuincation while CMI=512, this value will stay in the drive ( in RAM).
the only way that CMI come back to normal resolution is when the drive is power off and on.
So re-write it only needed at Power ON ( each power on).