RD52.1-4B-005-L-NN-NN-NN-FW Bosch Rexroth Indramat
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MPN: R911289493
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The Bosch Rexroth Indramat RD52.1-4B-005-L-NN-NN-NN-FW is a drive controller from the RD 500 Drive Controllers series with a rated power of 5.5 kW and a voltage range of 380 to 480 V. It features a built-in brake chopper, integrated mains filter, and uses forced air cooling with field oriented vector control. This drive controller operates on a 3-phase AC supply and allows for a tolerance of ±10%.
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Product Description:
The Bosch Rexroth Indramat RD52.1-4B-005-L-NN-NN-NN-FW belongs to the RD 500 Drive Controllers series. As a cabinet-mounted inverter, it conditions three-phase plant power and issues regulated output to induction or synchronous motors used on conveyors, mixers, and positioning axes. The unit merges power semiconductors with digital signal processing so that motion commands from a PLC translate into precise torque and speed at the motor shaft. Because the output frequency and voltage are electronically regulated, the drive can manage controlled acceleration, steady running, and deceleration without manual ratio changes. That operating approach is useful in equipment that must maintain consistent motion while the mechanical load shifts during production. This arrangement removes the need for mechanical speed-change components and simplifies machine upkeep.
Incoming energy is accepted from a three-phase AC converter supply at 380 to 480 V, and the ±10 % line margin helps keep the DC link stable despite common utility variations. Inside the controller, field-oriented vector control resolves stator current into flux-producing and torque-producing components, letting the motor hold zero speed under load or ramp smoothly to full velocity. This control method also supports steady response during low-speed operation and changing process loads. Separating torque and flux in software helps the drive react more predictably when the motor starts under load. The IGBT bridge is rated for 5.5 kW of mechanical power, supporting mid-range pumps, fans, and processing rollers. No optional function card is installed, so control is handled through the standard terminal strip, which carries start and stop logic, analog speed references, and basic diagnostics.
A built-in brake chopper directs surplus energy to an external resistor during fast deceleration, shielding the DC bus from overvoltage trips. Component heat is removed by forced air cooling, which draws cabinet air across the finned heat sink and maintains semiconductor junction temperatures. The controller is design generation 1, and an integrated mains filter suppresses conducted emissions so additional line filters are unnecessary.
Frequently Asked Questions about RD52.1-4B-005-L-NN-NN-NN-FW:
Q: Does the RD52.1-4B-005-L-NN-NN-NN-FW model have a brake chopper?
A: The RD52.1-4B-005-L-NN-NN-NN-FW drive controller features a built-in brake chopper for energy dissipation during braking cycles.
Q: What type of control does the RD52.1-4B-005-L-NN-NN-NN-FW use?
A: This drive controller utilizes field oriented vector control for precise speed and torque management.
Q: How is the RD52.1-4B-005-L-NN-NN-NN-FW drive controller cooled?
A: Cooling for the RD52.1-4B-005-L-NN-NN-NN-FW is achieved through forced air cooling methods.
Q: What is the rated power output of the RD52.1-4B-005-L-NN-NN-NN-FW unit?
A: The RD52.1-4B-005-L-NN-NN-NN-FW operates with a rated power of 5.5 kW, suiting moderate power requirements.
Q: What supply voltage range does the RD52.1-4B-005-L-NN-NN-NN-FW support?
A: This model supports a three-phase AC converter supply with a voltage range from 380 to 480 V and a ±10% tolerance.
