F07448 fault in siemens 6RA80 DC Drive indicate that the Position tracking, linear axis has exceeded the maximum range. This means a configured linear axis/no modulo axis, the currently effective motor encoder (encoder 1) has exceeded the maximum possible traversing range.

The fault should be resolved as follows:
1. Select encoder commissioning (p0010 = 4).
2. Reset position tracking, position (p2720.2 = 1).
3. De-select encoder commissioning (p0010 = 0).