RG2-511AAB by Bosch Rexroth Indramat

The RG2-511AAB is an encoder cable manufactured by Bosch Rexroth Indramat for the RG2 Encoder Cables series. It forms the data path between a motor-mounted encoder and a drive controller, carrying position feedback that is vital for closed-loop motion control in automated machinery. The assembly arrives fully terminated, which allows feedback lines to be routed quickly while maintaining the signal quality required by high-speed CNC axes, packaging equipment, and robotic joints that rely on deterministic feedback. Because the cable is supplied with strain-relief molding and an outer jacket, it can withstand continuous machine movement without secondary conduit or additional signal conditioning.

The conductor set in the RG2-511AAB has a 0.50 mm² cross-section, providing a balance between voltage drop and flexibility for encoder pulses. During repetitive motion, the cable must observe a dynamic bending radius of 7.5 × D; once fixed, the static radius can be reduced to 5 × D to conserve cabinet space. Its endurance is rated for 5,000,000 bending cycles, making the lead suitable for energy-chain and robot-arm routing. The Basic design designation uses a standard PVC outer jacket and internal pair twisting for this encoder cable type, and the conductors are arranged as a digital cable so differential pairs help reject noise when high-resolution counts are transmitted from the encoder to the drive.

As part of the 2nd Generation RG2 family, the cable adds improved shielding for Digital encoder interfaces used in IndraDrive feedback protocols. A molded M23 encoder connector terminates one end and mates directly with the feedback socket on MS2x synchronous motors, which helps reduce field wiring errors. This arrangement supports moving axes that require stable encoder feedback for accurate closed-loop positioning.