Quote Originally Posted by Art_N View Post
Hi guys!
Unfortunately, I read this forum very late. I bought this controller - Nvum v2 4axis ... and am now trying to get it to work.
1 problem - after 30 minutes of work, the controller has lost the bin file. I found the bin file and restored it to work.
2 problem - after an hour of work, the controller stopped connecting to the computer!
I think the firmware is lost.
How can I restore the firmware?
This sound familiar was same here but in an other sequence and other controller NVEM v2 4 axis instead of NVUM.
I had your second problem first after 1 day of playing, I noticed the communication led (green Ethernet) on the NVEM blinked much
slower as when working. Contacted the seller with a movie attached and received a new one but had to wait 5 weeks
as nomore available from the EU warehouse.
The second NVEM works like a "charm".
Meanwile I purchased a spindle
Aircooled 2,2 Kw 3phase 300Hz 18000rpm collet ER25 (didn't find ER25 400hz 24000rpm as aircoolled and ER25 was main goal, was not easy/cheap to find in this setup)
Huanyang 2,2 Kw inverter mono phase 220V
The spindle is controlable from Mach 3 with M3 and M5 commands without external relay as mentioned befor,
just have to check if rpm is displayed correctly with external hand rpm unit

Grammatical errors are for free as google translate was helpfull