DDC01.1-K050B-RL25-01-FW Bosch Rexroth Indramat
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The Bosch Rexroth Indramat DDC01.1-K050B-RL25-01-FW is a digital intelligent servo drive from the DDC Digital Intelligent Servo Drives series. It supports single axis positioning with resolver feedback, is cooled by natural convection air, and operates with a rated current of 50 Amps.
Internal Product Review
The DDC01.1-K050B-RL25-01-FW is a digital intelligent servo drive configured for single-axis positioning. Natural convection cooling and resolver feedback support dependable performance and straightforward integration in motion systems. Rated at 50 A with reduced noise emission at motor rating, this drive stands out for efficient and controlled servo operation.
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Product Description:
The DDC01.1-K050B-RL25-01-FW is a servo drive developed by Bosch Rexroth Indramat for machines that require precise closed-loop motion. It belongs to the DDC Digital Intelligent Servo Drives series and converts three-phase power into controlled motor current while supervising position, velocity, and torque. Within an automation cell, the unit pairs with a compatible Indramat servomotor to coordinate tool heads, gantry axes, or feeders. This arrangement replaces mechanical speed adjustment and allows a PLC to command accurate electronic positioning. The drive can regulate motion as operating loads change, helping the connected axis maintain the requested speed and position throughout an automated cycle.
The drive includes the Single-Axis Positioning command module, so its internal controller can execute indexed moves without relying on an external motion card. Its continuous armature current capacity reaches 50 A, providing sufficient current for mid-frame motors that require high startup torque. Motor status is returned through resolver feedback, which provides sinusoidal position signals for determining rotor angle during acceleration and steady operation. Heat is removed through natural convection air cooling, so the cabinet must provide sufficient airflow even though the housing does not have a dedicated fan. Acoustic output is rated as Reduced (50 A), indicating lower sound levels when the device operates at its rated current. These operating characteristics support applications that require repeatable indexing, controlled acceleration, and stable torque delivery without additional motion-control hardware.
The operating logic uses Function Code Version 01, which is compatible with early Indramat positioning libraries. Its onboard digital controller manages diagnostic messages and parameter sets through the shared DDC command structure. The unit is classified as Series 1 and Version 1, identifying its product generation and electronics revision. These identifiers correspond to the unit’s timing behavior and connector pinout within a compatible drive system. The controller can be incorporated into a multi-axis rack while retaining the motion parameters assigned to its specific axis. Its internal positioning functions also reduce the amount of command processing required from the central PLC during repetitive indexed movements.
