I have a mahine lathecnc viper vt 27 that I bought at jpf machine tools france in 2014
The problem i have the alarm 9084 in the moniteur and alarm 84 in the SPM
I have to change the encoder of the spindle
Always the same problem we have to verify the connector cables
You can solve this problem
And at the same time if you can send us the parameters I thank you infinitely
Please let us know if you have any questions!