Good morning,
I have a problem with my hitachi VK45.
Sometimes the machine gives me the alarm :
" 867 DT 4TH axis vel. feedback disconnected "
I don't have the 4 th axis....
The strange fact is that i can work everyday for a month and i don't have any problem,
and sometime i can't work for a day. The alarm appear also if the machine doesn't work , but is in standby.
When it happens, i have to turn off the machine, wait 30min/1h and maybe i can start to work again
What could it be?
Thank you
Enrico