RD51.1-4N-055-L-V1-FW Bosch Rexroth Indramat
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MPN: R911200589
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The Bosch Rexroth Indramat RD51.1-4N-055-L-V1-FW is a drive controller from the RD 500 Drive Controllers series and supports a rated power of 55 kW with a voltage range of 380 to 480 V. It features U/f curve control, forced air cooling, an integrated mains filter, and operates with external 24 V stand-by power.
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Product Description:
The RD51.1-4N-055-L-V1-FW is a drive controller produced by Bosch Rexroth Indramat for the RD 500 Drive Controllers series. The device conditions three-phase power and issues variable-frequency output so that induction motors follow commanded speed and torque profiles. By matching motor demand to process requirements, the controller supports energy-efficient operation and can help reduce wear in automated conveyor, pumping, and material-handling systems.
This model delivers a rated output of 55 kW, which is suitable for mid-range production machinery. Its supply range is 380 to 480 V three-phase AC, and a line tolerance of ±10 % allows the drive to remain stable during typical plant voltage fluctuations. Because it is a 3 x AC converter, no additional rectifier is required at the mains connection. The control method uses U/f curve control, so motor flux stays proportional across the speed range as voltage is adjusted with frequency. This open-loop method is well suited to applications that do not require encoder feedback but still need predictable torque performance. The product is a drive controller in design generation 1. Firmware is ordered as a separate subposition so the software package can be matched to the selected motor and fieldbus options.
Thermal management relies on forced-air cooling, and an internal fan directs airflow along the power components to clear heat from the sinks. The unit is supplied without a built-in brake chopper, so dynamic braking energy must be handled through the DC bus of a companion module when rapid stops are required. For the control electronics, the front end provides external 24 V stand-by power, which keeps parameter memory and fieldbus nodes active during main power interruptions. An integrated mains filter attenuates conducted emissions, helping the installation meet electromagnetic compatibility guidelines.
Frequently Asked Questions about RD51.1-4N-055-L-V1-FW:
Q: Does the RD51.1-4N-055-L-V1-FW drive controller have a built-in mains filter?
A: The RD51.1-4N-055-L-V1-FW includes an integrated mains filter for electrical noise reduction.
Q: What is the rated power output of the RD51.1-4N-055-L-V1-FW drive controller?
A: This model is rated for a maximum power output of 55 kW.
Q: What type of power supply does the RD51.1-4N-055-L-V1-FW require?
A: It operates using a converter supply configuration with three-phase AC input.
Q: How is the RD51.1-4N-055-L-V1-FW drive controller cooled?
A: The RD51.1-4N-055-L-V1-FW uses forced air cooling to maintain operating temperatures.
Q: What type of motor control method does the RD51.1-4N-055-L-V1-FW support?
A: Control is achieved through U/f curve control, allowing variable frequency drive operation.
