The Omron R88ACR1A015CFE is a 15 m encoder cable built for 1S servo motors, sitting in Omron's 1S-series cable family as the feedback-side lead that pairs the drive to the motor's absolute encoder.
Where this class of lead runs
An encoder cable in the 1S family carries the serial feedback signal between the 1S servo drive and the motor's integrated multi-turn absolute encoder, so the lead has to stay within the drive's specified cable length budget for the encoder protocol to stay inside its error envelope. For a 15 m run the cable typically lives in a cable tray alongside the separate motor power and brake leads, with the encoder lead kept clear of VFD output cabling to protect signal integrity on longer pulls like this one.