RKG0054 by Bosch Rexroth Indramat

The RKG0054 encoder cable is manufactured by Bosch Rexroth Indramat and belongs to the RKG Encoder Cables series. Supplied as a ready-made assembly, it connects the feedback encoder on a motor to the corresponding interface on a drive controller inside an industrial automation cabinet. By delivering low-noise differential signals over a short distance, the cable helps the servo loop maintain precise position, detect following errors, and initiate immediate shutdown if the feedback path is interrupted. Because the encoder channel governs velocity and commutation, the cable's impedance control and shielding prevent electromagnetic interference from adjacent power conductors, ensuring repeatable machine accuracy during high-speed indexing, packaging, or robotics tasks.

With a length of 0.5 m, the RKG0054 suits tight layouts where the drive is mounted next to the motor or where a short jumper inside a cabinet is required. One end is terminated with a RGS1001 circular connector that mates to Rexroth encoder sockets, while the opposite end carries a RGS1004 plug for the controller side; this matched pair eliminates wiring errors and preserves differential pair orientation. During continuous motion, the jacket tolerates a dynamic bending radius of 7.5 × D, allowing it to flex repeatedly on cable chains without signal degradation. Mechanical endurance is quantified by a flex life of 5,000,000 cycles, so maintenance intervals can be planned around predictable cable fatigue rather than unexpected faults.

In stationary routing, the minimum bend requirement relaxes to a static radius of 4 × D, permitting tight cabinet folds without overstressing the conductors. The insulation and sheath materials permit operation up to 80 °C and down to -20 °C, covering the ambient ranges typical for servo drives installed near process ovens or in unconditioned factory areas. During storage, the cable remains stable down to -40 °C, helping prevent micro-cracking during winter transport or long-term warehouse storage.