RD52.1-5B-045-L-V1-FW Bosch Rexroth Indramat
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MPN: R911203244
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The Bosch Rexroth Indramat RD52.1-5B-045-L-V1-FW is a drive controller from the RD 500 Drive Controllers series, designed with field oriented vector control and forced air cooling. This unit operates at a rated power of 45 kW, includes a built-in brake chopper, and uses a converter supply of 3 x AC within a 500 V voltage range.
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Product Description:
The RD52.1-5B-045-L-V1-FW is a drive controller produced by Bosch Rexroth Indramat for the RD 500 Drive Controllers series. It is intended to modulate motor voltage and frequency in automated processing and material-handling cells, delivering closed-loop speed and torque regulation to AC machinery. Through internal sensing and microprocessor-based control, the device coordinates motion commands from a PLC with the electrical demands of connected motors so conveyors, extruders, and pump assemblies can follow programmed operating cycles. This arrangement helps the controller respond smoothly to changing load conditions without requiring separate external control hardware for basic drive regulation.
It accepts a three-phase AC mains supply, and the input rails can span up to 500 V, giving it the voltage range needed for larger asynchronous motor systems. The power section is rated for 45 kW, allowing the controller to operate mid-range production motors without additional step-up equipment. Current regulation is performed with field-oriented vector control, which tracks motor behavior closely so torque response remains stable as reference values change. Thermal management relies on forced-air cooling, with an internal fan moving air through the semiconductor section to remove heat during continuous operation. For deceleration and high-inertia stopping, a built-in brake chopper diverts excess DC bus energy to a braking resistor to reduce the risk of overvoltage faults. These functions support applications that need controlled acceleration, steady speed holding, and predictable braking performance during repeated process cycles.
Service features reflect design generation 1 of the platform. A control terminal supplies 24 V standby power so the logic and communication functions can remain active when the main supply is isolated, which allows diagnostics and parameter access without energizing the power stage. The controller also uses firmware ordered as a separate subposition, allowing the software package to be selected for the intended application. This setup is useful when the same hardware platform is applied to different machine duties that require different control behavior or communication options.
Frequently Asked Questions about RD52.1-5B-045-L-V1-FW:
Q: Does the RD52.1-5B-045-L-V1-FW come with a brake chopper?
A: The RD52.1-5B-045-L-V1-FW features a built-in brake chopper to help manage braking energy within the system.
Q: What type of control does the RD52.1-5B-045-L-V1-FW drive controller use?
A: This model uses field oriented vector control for precise and efficient motor operation.
Q: How is the RD52.1-5B-045-L-V1-FW drive controller cooled?
A: The RD52.1-5B-045-L-V1-FW employs forced air cooling for thermal management during operation.
Q: What is the rated power output of the RD52.1-5B-045-L-V1-FW?
A: It provides a rated power output of 45 kW, making it suitable for high-power applications.
Q: What type of supply and voltage range does the RD52.1-5B-045-L-V1-FW require?
A: This unit operates on a 3-phase AC converter supply with a voltage range of 500 V.
