ALLEN BRADLEY PN-156959 Feedback Cable Assembly

Overview

The ALLEN BRADLEY PN-156959 is a factory pre-assembled encoder feedback cable for Allen‑Bradley Kinetix servo drive and motor systems. The ALLEN BRADLEY PN-156959 transmits position, speed and temperature signals between the servo motor encoder and the matched Kinetix drive unit. It adopts shielded twisted pair construction to resist electromagnetic interference in industrial cabinet environments and supports high-speed serial encoder communication. The ALLEN BRADLEY PN-156959 is widely stocked as spare wiring assembly for packaging, machine tool and material handling motion control systems.

Features

The ALLEN BRADLEY PN-156959 integrates pre-terminated matching connectors on both ends for fast plug-and-field installation without crimping. It uses overall shielding and pair shielding design to reduce noise impact on high-resolution encoder signals. The ALLEN BRADLEY PN-156959 supports continuous flexing and fixed routing applications according to the cable version specification. It carries UL and industrial flame retardant approvals, and follows the original pinout definition for direct replacement of the same part number cable assembly. The ALLEN BRADLEY PN-156959 is compatible with Kinetix 5500, Kinetix 5700 and related servo motors with the corresponding encoder interface.

Specs

Device Type: Encoder feedback cable assembly Model: ALLEN BRADLEY PN-156959 Cable Type: Shielded twisted pair feedback cable Connector: Pre-terminated encoder connectors Application: Kinetix servo encoder feedback Construction: Flame retardant, shielded Installation: Fixed routing or continuous flex version Protection Grade: Cable outer jacket IP67 when mated with connectors

Principle

The ALLEN BRADLEY PN-156959 carries differential encoder signals, motor temperature sensor signals and power for the encoder circuit from the servo motor back to the drive. The twisted and shielded structure suppresses common-mode noise generated by the power cable and inverter switching. The drive reads rotor position and speed data from this cable to execute closed-loop motion control. If cable breakage, short circuit or shielding failure occurs, the ALLEN BRADLEY PN-156959 will trigger encoder fault alarm on the servo drive.

Applications

The ALLEN BRADLEY PN-156959 is used for feedback wiring between Kinetix servo motors and drives in automated assembly lines and CNC machine tools. It serves signal transmission for high-precision positioning axes in packaging and converting machinery. The ALLEN BRADLEY PN-156959 applies to spare stock and emergency replacement of damaged servo encoder cables. It also supports new machine wiring and servo cabinet upgrade projects.