RD51.1-4B-160-R-V1-FW Bosch Rexroth Indramat
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MPN: R911200280
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The Bosch Rexroth Indramat RD51.1-4B-160-R-V1-FW is a drive controller in the RD 500 Drive Controllers series with a rated power of 160 kW and U/f curve control. It features liquid cooling with an internal pump for high power ratings, an integrated mains filter, and a built-in brake chopper. This converter operates on a supply voltage range of 380 to 480 V with a tolerance of ±10 percent and provides 24 V external standby power.
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Product Description:
The RD51.1-4B-160-R-V1-FW is an AC frequency converter produced by Bosch Rexroth Indramat within the RD 500 Drive Controllers series. The unit serves as the central interface between the facility power supply and a three-phase motor, shaping voltage and frequency so that industrial conveyors, mixers, and pump groups can be started, accelerated, and stopped with repeatable precision. Because it is intended for cabinet installation in high-power systems, it combines power electronics, protective functions, and field wiring terminals in one enclosure. This layout keeps the drive section compact while supporting organized integration in large automation lines.
The converter has a continuous output capability of 160 kW, allowing direct connection to motors of comparable shaft rating. It accepts input voltage from 380 to 480 V and remains operational when the incoming RMS value varies by as much as ±10%. Power is supplied from a three-phase AC supply and delivered to the motor through U/f curve control, so magnetic flux stays proportional to speed without requiring encoder feedback. This control method provides predictable torque behavior across a broad speed range while helping limit electrical and thermal stress on the power components.
Heat generated in the IGBT section is removed by liquid cooling with an internal pump, which reduces the need for large external heat sinks and supports dense cabinet layouts. Rapid deceleration and overhauling loads are handled by a built-in brake chopper that diverts excess DC-link energy to a resistor bank. Input noise is reduced by an integrated mains filter, and the control electronics can remain active during power interruptions through the 24 V standby power connection for parameter retention and fieldbus monitoring. This is a Generation 1 design, and the required control software is ordered separately to match the application.
Frequently Asked Questions about RD51.1-4B-160-R-V1-FW:
Q: Does the RD51.1-4B-160-R-V1-FW include a brake chopper?
A: The RD51.1-4B-160-R-V1-FW features a built-in brake chopper for energy dissipation during braking cycles.
Q: What control method is used by the RD51.1-4B-160-R-V1-FW?
A: This drive controller supports U/f curve control, enabling speed regulation based on the voltage-frequency relationship.
Q: How is the RD51.1-4B-160-R-V1-FW cooled?
A: The RD51.1-4B-160-R-V1-FW utilizes liquid cooling with an internal pump for efficient temperature management at 132 kW and above.
Q: What is the rated power of the RD51.1-4B-160-R-V1-FW drive controller?
A: The rated power output for this model is 160 kW, making it suitable for high-power applications.
Q: What type and range of supply voltage does the RD51.1-4B-160-R-V1-FW support?
A: It operates on a 3-phase AC supply with an input voltage range between 380 and 480 V.
