RD51.1-5B-007-L-V1-FW Bosch Rexroth Indramat
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MPN: R911200895
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The Bosch Rexroth Indramat RD51.1-5B-007-L-V1-FW is a drive controller from the RD 500 Drive Controllers series. It features a rated power of 7.5 kW and is designed for a voltage range of 500 V with a 3-phase AC converter supply. The unit offers U/f curve control, a built-in brake chopper, and uses forced air cooling.
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Product Description:
The RD51.1-5B-007-L-V1-FW belongs to the RD 500 Drive Controllers series manufactured by Bosch Rexroth Indramat. It is a dedicated drive controller that converts fixed-frequency AC line power into a variable output for induction motors, enabling closed-loop speed control in conveyor lines, pumps, and general motion axes within automated equipment. This arrangement allows the connected motor to run over a controlled speed range while responding to changing process demands.
The drive regulates motor flux through U/f curve control, a method that keeps the voltage-to-frequency ratio constant so magnetic saturation is avoided during acceleration and low-speed operation. Thermal loading is managed by forced air cooling, which directs cabinet airflow across internal heat sinks to remove losses generated by the power semiconductors. A built-in brake chopper dissipates regenerated energy into an external resistor bank, helping prevent DC-bus overvoltage during rapid deceleration. Continuous shaft output is rated at 7.5 kW, which matches medium-frame motors used on material-handling lines. The power section accepts a 3 × AC converter input, so it connects directly to a three-phase rectifier module that charges the intermediate circuit without a separate transformer.
Line connection is specified for a 500 V bus, giving enough headroom for the modulation index needed at peak torque while remaining below typical 575 V insulation limits. If the main supply is isolated, an external 24 V standby power input keeps the control electronics active so stored parameters and fieldbus communication remain available. The software is not embedded, so firmware must be ordered as a separate subposition for operation. The unit is design generation 1, which matches first-generation RD 500 option cards and related setup utilities.
Frequently Asked Questions about RD51.1-5B-007-L-V1-FW:
Q: Does the RD51.1-5B-007-L-V1-FW include a brake chopper?
A: The RD51.1-5B-007-L-V1-FW features a built-in brake chopper for internal braking operations.
Q: What type of control method does the RD51.1-5B-007-L-V1-FW use?
A: This model utilizes U/f curve control for motor speed regulation.
Q: How is the RD51.1-5B-007-L-V1-FW cooled?
A: Forced air cooling is employed to maintain optimal operating temperatures in the RD51.1-5B-007-L-V1-FW.
Q: What is the maximum rated power of the RD51.1-5B-007-L-V1-FW?
A: The rated power output for this drive controller is 7.5 kW.
Q: What supply voltage and type does the RD51.1-5B-007-L-V1-FW require?
A: The RD51.1-5B-007-L-V1-FW operates within a 500 V voltage range and requires a 3-phase AC converter supply.
