So, ive got this old machine that uses fanuc servo amps motors and controls
We are having an issue where the first and second axis work fine but the moment you try to control the third axis it throws an abnormal current alarm.
Over a period of time, we have tried the following:
Sent the motor out for testing (came back fine so motor is good)
Replaced the motor power cable due to the manual recommendation(Power cable good)
Swapped servo amps (The problem followed axis 3 so Servo Amp is Good)
Swapped cables running from cnc to servo amps (They were fine)
Swapped motor feedback cables just in case, but that was fine too
Checked limit switches to see if they were not functional and somehow overriding the motor (again good)
I'm just looking for a direction to go.
I'm thinking the problem might be inside the OPT1, MAIN-C, PMC-NA, PSU-B1 combo,
But i'd like to know some of what I'm doing before i start taking things apart and erasing CNC data by mistake
Even confirmation this is the right direction to look in would be helpful
Thanks for the help.
If you need more info I'll gladly give it to you