Hello,
Looking for some advice on 2 alarms that popped up today on my Z axis. One is a "25 NMI SERVO DRIVE ALARM", the other is a "15 DRIVE ALARM Z AXIS. The machine was running but idle with the Z and Y axis at machine home positions. I stepped away briefly to eat lunch and about 10 min later I heard a loud bang like a gun going off. I have some parts to get out so now I'm in a pinch.
Today has been very humid with temps in the 80's. I thought I had some issues earlier with humidity so I had the doors opened and a fan blowing air directly into the cabinet (maybe not a good idea?) Should also note that with power off I can't feel anything very hot on the drive or boards, a couple spots are warmer, especially around the larger white resistors. Also a definate hot or burnt electrical smell.
I checked all the breakers and fuses I can find but still a no go. Maybe there are some thermal breakers hidden somewhere that I can't see? Tried leaving the machine off for 10 min and starting it back up but still nothing.
Also, if this is any help, generally when the Z axis is at rest at machine home, the Z load meter will pull about 20 - 30% load. However when I move the axis down closer to the table, the load drops to 10 - 15% or less. I installed the machine in 2007 and it has done that since that time. Could there be a problem here as well?
Thanks in advance,
Nate