Obsolete on the L-line — what that means for a spare-line BOM
The ILS1M572PC1A0: The description on file is an integrated drive ILS with stepper motor, 24..36V supply, I/O for motion sequence, 3.5A — that combination (drive + motor + motion I/O on a single 24..36V bus) places the unit on compact, low-voltage motion axes rather than three-phase servos, so any cross-reference must preserve the 24..36V logic supply and the 3.5A drive-stage rating, not just the connector outline.
Where an ILS stepper drive fits on the machine
In the Servo Drives category, this class of integrated stepper drive typically lands on indexing tables, labellers, small format conveyors, and pick-and-place axes where a 24..36V DC bus is already present and a discrete motion controller is not warranted — the on-board motion sequence I/O lets the drive run a profile from terminal commands without an external motion PLC in the loop. The 3.5A stage current ceiling is the load-side limit a designer works backwards from: a NEMA 23 stepper at 3.5A is at the upper end of what this drive will swing without current-foldback, so any replacement candidate has to match or exceed that figure rather than just share the same motor-frame outline.