RS51.1-4G-024-S-NN-FW Bosch Rexroth Indramat
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MPN: R911201165
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The Bosch Rexroth Indramat RS51.1-4G-024-S-NN-FW is a basic drive from the RD 500 Drive Controllers series and supports U/f curve control. It features a built-in brake chopper and resistor, with an integrated mains filter, and has a rated power of 24 kVA. The drive operates as a converter for 3-phase AC with a voltage range of 380 to 480 V and a tolerance of plus or minus 10 percent.
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Product Description:
The RS51.1-4G-024-S-NN-FW basic drive is manufactured by Bosch Rexroth Indramat and belongs to the RD 500 Drive Controllers series. As a scalable converter, it regulates the speed and torque of three-phase induction motors in automated machinery and material-handling lines. By combining power conversion and line conditioning in one housing, the unit supplies controlled energy to downstream loads and coordinates with higher-level PLCs for sequence management. This layout supports centralized cabinet installation where motor control and incoming line conditioning are handled by the same drive assembly.
Electrical input to the drive is accepted from a three-phase AC mains connection, allowing balanced feeding from industrial mains. Within this topology, the converter maintains a nominal operating window of 380 to 480 V while tolerating normal supply variation. At that range, the power section can deliver up to 24 kVA to the motor terminals, which suits medium-power conveyors, pumps, and extruders. Motor flux is managed by U/f curve control, which links output voltage and frequency so magnetizing current remains stable across the speed band. This control method is well suited to general-purpose induction motor applications that do not require more complex vector regulation. Harmonics on the supply side are reduced by an integrated mains filter, so an external filter cabinet is not required.
The drive uses a built-in brake chopper and resistor to dissipate excess DC-bus voltage during fast stops. This allows braking energy to be handled inside the unit during deceleration of connected loads. Line fluctuation limits are set by a ±10% tolerance, which helps the converter remain stable during common utility swings. The unit is part of generation 1 of the series. This version comes without optional technology functions, so its configuration remains focused on core speed and torque control.
Frequently Asked Questions about RS51.1-4G-024-S-NN-FW:
Q: Does the RS51.1-4G-024-S-NN-FW have a built-in brake chopper and resistor?
A: The RS51.1-4G-024-S-NN-FW includes a built-in brake chopper and resistor for effective energy dissipation during braking cycles.
Q: What control method does the RS51.1-4G-024-S-NN-FW use?
A: This drive uses U/f curve control for managing the output to the connected motor.
Q: What is the design generation of the RS51.1-4G-024-S-NN-FW controller?
A: The RS51.1-4G-024-S-NN-FW is a Design Generation 1 model.
Q: What is the rated power output of the RS51.1-4G-024-S-NN-FW controller?
A: This drive controller provides a rated power of 24 kVA, making it suitable for high power applications.
Q: What type of supply and voltage range does the RS51.1-4G-024-S-NN-FW require?
A: The RS51.1-4G-024-S-NN-FW operates on a 3-phase AC supply with a voltage range from 380 to 480 V.
