What this cable is and which axis it feeds
The FCE319050A100 is a shielded motor power cable built for the PacDrive 3 servo system, routed specifically to axes 2, 3, and 4 on the STS40/60/80 axis module where the 5 m run matches the harness layout the machine builder designed around. Its job is to carry the drive-side power between the PacDrive 3 amplifier output and the motor on those three axes — a shielded construction (metal-bodied) so the switching edges of the drive do not couple into adjacent signal cables inside the same duct.
Connector end, length, and what that locks in
Length is 5 m (16.4 ft): long enough for a typical cabinet-to-axis layout on a small-to-mid PacDrive 3 cell, short enough that voltage rise at the motor terminals stays inside what the drive's loop compensation expects; a longer drop would be a different cable code, not a field-splice of this one.