We have a 2010 Fadal (Mag-Fadal, FANUC Controller). The backup battery doesn't always hold charge perfectly so every month I'll pull the battery and charge it out of the machine. Normally the 307 alarm for X,Y,Z warns me when it is time to do this.
Recently I have been getting a 307 alarm for the A-Axis as well. This means the "APC" signal constantly flashes so when the X,Y,Z battery gets low we don't always realize it. We have a SMW Accu-Rock 4th axis with the additional FANUC drive box in the electrical panel. The battery for the X,Y,Z axis is plain as day when you open the electrical panel, but I cannot find the battery for the A-Axis anywhere! There is nothing external to the drive for the 4th axis and nothing on the 4th axis itself. Does anyone know where to find this battery so I can replace it (along with the failing XYZ battery) and quit worrying about losing the machine parameters during long weekends or if I forget to check the battery condition?
I can answer any other questions you may have, just let me know. Thanks.