RD51.1-4N-007-L-NN-NN-NN-FW Bosch Rexroth Indramat
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MPN: R911289697
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The Bosch Rexroth Indramat RD51.1-4N-007-L-NN-NN-NN-FW is a drive controller from the RD 500 Drive Controllers series, designed with a rated power of 7.5 kW. It operates on a voltage range of 380 to 480 V with a ±10% tolerance and uses forced air cooling. This model features U/f curve control and an integrated mains filter, and it does not have a built-in brake chopper.
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Product Description:
The RD51.1-4N-007-L-NN-NN-NN-FW is a drive controller released by Bosch Rexroth Indramat within the RD 500 Drive Controllers series. This unit converts fixed mains power into a variable output for asynchronous motors, enabling variable-speed control in conveyor lines, mixers, and general machine tools. It is intended for industrial systems that need adjustable motor speed, smooth startup behavior, and steady operation from a standard plant power source.
The controller handles a rated motor load of 7.5 kW, so it can operate motors in that power class for general industrial duty. It connects to plant power through a three-phase feed and accepts line voltages from 380 to 480 V, which matches common industrial supply levels. The internal rectifier and inverter are arranged for a three-phase AC converter supply, and the control section tolerates line fluctuations of ±10 % without tripping. Motor flux is regulated by U/f curve control, which keeps stator voltage proportional to frequency for stable torque across the speed range. That makes it suitable for pumps, fans, conveyors, and similar loads that do not require advanced servo-style tuning.
Heat produced by the power stage is removed with forced air cooling, allowing installation in ventilated enclosures where airflow can be maintained around the unit. Conducted emissions toward the mains are reduced by an integrated filter, which can simplify panel layout when additional suppression hardware is not required. For rapid deceleration, the drive is supplied without a built-in brake chopper, so regenerative energy must be handled by external hardware when the application returns power to the DC bus. This hardware belongs to design generation 1, indicating the first release of this configuration. The functions menu is not equipped, so optional technology features remain inactive unless compatible plug-in options are installed. Adequate cabinet ventilation remains important because the cooling air path must stay unobstructed during continuous operation.
Frequently Asked Questions about RD51.1-4N-007-L-NN-NN-NN-FW:
Q: What input voltage range does the RD51.1-4N-007-L-NN-NN-NN-FW support?
A: The RD51.1-4N-007-L-NN-NN-NN-FW drive controller operates with a voltage range of 380 to 480 V to match industrial power systems.
Q: What is the rated power output for the RD51.1-4N-007-L-NN-NN-NN-FW?
A: This drive controller provides a rated output power of 7.5 kW.
Q: What type of cooling is used in the RD51.1-4N-007-L-NN-NN-NN-FW drive controller?
A: Forced air cooling is used in this model for thermal management during operation.
Q: Does the RD51.1-4N-007-L-NN-NN-NN-FW include a mains filter?
A: The RD51.1-4N-007-L-NN-NN-NN-FW features integrated mains filtering for improved compatibility with electrical systems.
Q: Is there a built-in brake chopper in the RD51.1-4N-007-L-NN-NN-NN-FW controller?
A: This model does not have a built-in brake chopper for energy dissipation during braking.
