REXRTOH Drive System Connection Component Set

The REXRTOH component grouping identified by article numbers R901325866, R900775346, and R901273425A represents a carefully selected set of connection accessories for industrial drive systems. This kit is designed to provide all necessary cabling and hardware to establish a complete and reliable connection between a digital servo drive (such as an IndraDrive model) and a synchronous servo motor. By offering matched components from a single source, it eliminates compatibility guesswork, ensures optimal signal integrity, and accelerates the installation process for motion control axes in automated machinery.

Key Components and Their Functions

While the exact specification for each article number is defined in official documentation, a typical set of this nature includes the following key elements:

• Motor Feedback Cable (e.g., R901325866): This is a shielded, multi-conductor cable designed to connect the servo motor's integrated encoder (e.g., with EnDat or HIPERFACE interface) to the feedback port on the drive. It is constructed with precise impedance matching and robust shielding to protect the sensitive digital feedback signals from electrical noise, ensuring accurate and reliable position data transmission.

• Motor Power Cable (e.g., R900775346): This cable carries the three-phase power from the drive's output stage to the motor's windings. It is rated for the system's voltage and current, features appropriate shielding to contain electromagnetic emissions from the pulsed drive output, and includes protective earth (PE) conductors. It is terminated with connectors that match both the drive's output module and the motor's power inlet.

• Accessory or Mounting Kit (e.g., R901273425A): This component may include necessary hardware for installation, such as cable clamps, strain relief devices, shielding contact elements, connector hoods, or mounting brackets. These items ensure the cables are secured properly, maintain their shielding integrity, and are protected from mechanical stress in the control cabinet.

Technical Specifications and Benefits

The use of this matched set provides several technical and practical advantages:

Typical Application Context

This connection set is utilized whenever a new servo axis is installed or when replacing cables during maintenance on equipment using compatible Rexroth drives. Common applications include:

• New Machine Commissioning: Supplying the connection infrastructure for servo axes in new packaging machines, machine tools, or robots.

• System Retrofit or Upgrade: Replacing worn or damaged cables in existing automation systems to restore performance and reliability.

• Preventive Maintenance: Keeping a kit on hand for quick replacement of cables in critical production machinery to minimize downtime.

• OEM Machine Building: Used by original equipment manufacturers as the standard connection solution for the servo systems integrated into their machines.

Conclusion

The REXRTOH component set (R901325866, R900775346, R901273425A) underscores the importance of a holistic approach to drive system integration. It provides a reliable, off-the-shelf solution for one of the most critical yet often overlooked aspects of motion control: the physical connection. By ensuring perfect compatibility and optimal electrical performance, this kit protects the investment in high-performance drives and motors, contributes to system stability, and supports the overall productivity of automated industrial equipment. For definitive cable lengths, connector types, and specific compatibility lists for these article numbers, consulting the official Rexroth documentation or parts catalog is essential.