M.1015.7931 Kollmorgen
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The Kollmorgen M.1015.7931 is an encoder feedback cable from the Kollmorgen Servo Cables series. It measures 25 feet in length and features connectors on both ends, with a 20-pin Mini-D Ribbon J2 interface for the drive side and connection to FSM or HSM series motors. This cable uses 360-degree backshell shielding on both ends and is constructed with twisted pair wiring, molded, and potted connectors.
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Product Description:
The M.1015.7931 cable is manufactured by Kollmorgen and belongs to the Kollmorgen Servo Cables series. It carries differential position signals between a Kollmorgen servo drive and the encoder fitted to a synchronous motor. Reliable feedback allows the drive to determine the mechanical angle, correct velocity errors, and maintain precise torque in automated machinery. Typical applications include pick-and-place axes, indexing tables, and packaging stations that require accurate closed-loop motion. The cable is supplied as a ready-made assembly with terminated connectors, which reduces the amount of wiring required during installation and helps prevent connection errors.
The cable has a length of 25 ft, providing room for routing through control cabinets and between machine frames without splicing. Its function as an encoder feedback cable means that its conductors carry low-level differential signals rather than motor power. The signal conductors use a twisted-pair layout to improve noise rejection and preserve feedback quality near electrically active equipment. Electromagnetic immunity is increased by 360-degree shielding at both ends, which surrounds the connector bodies and provides a continuous shielding path. The shield uses chassis grounding through the connector shells to direct coupled electrical noise away from the signal conductors. The cable also has molded and potted connectors that protect internal solder joints from vibration and moisture during machine operation.
At the drive end, the cable connects to the J2 feedback port used on many Kollmorgen servo amplifiers. This connection uses a 20-pin Mini-D ribbon interface that mates with the corresponding connector on the controller’s front panel. The compact interface supports organized cable routing where several drive axes are installed in the same control cabinet. At the motor end, the terminated lead is keyed for an FSM or HSM series motor, providing the pin alignment required by the encoder connection on those motor families. The keyed design helps prevent incorrect orientation when the cable is connected to the motor. Its terminated interfaces allow the feedback path to be established without field crimping, while the shielded signal arrangement helps maintain position data integrity throughout the cable run.
