RD51.1-4N-007-L-C1-FW Bosch Rexroth Indramat
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MPN: R911200552
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The Bosch Rexroth Indramat RD51.1-4N-007-L-C1-FW is a drive controller from the RD 500 Drive Controllers series. It supports U/f curve control and has a rated power of 7.5 kW. This model features forced air cooling, an integrated mains filter, and operates on a voltage range of 380 to 480 V with a tolerance of plus or minus 10 percent.
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Product Description:
The RD51.1-4N-007-L-C1-FW is a drive controller produced by Bosch Rexroth Indramat and supplied within the RD 500 Drive Controllers series. As a converter-based unit, it interfaces a three-phase mains supply with induction motors used in conveyors, mixers, and similar industrial axes. By regulating stator frequency and voltage, it allows speed adjustment and torque matching for automated processes that require consistent motion control. This type of drive is commonly used where process speed must change smoothly instead of staying tied to a fixed mains frequency.
This controller delivers a nominal output of 7.5 kW, which is the rated motor power it can supply under normal operating conditions. It accepts line voltages from 380 to 480 V and tolerates input fluctuations of ±10 %, so it can remain in service on industrial grids that vary within that range. Motor excitation follows U/f curve control, where output voltage rises with frequency to help maintain magnetic flux and stable torque through low- and mid-speed operation. That control method is well suited for general-purpose variable-speed duties that do not require more complex feedback-based motor regulation. The design is supplied without a built-in brake chopper, so rapid deceleration requires external braking hardware or another means of handling returned energy.
Thermal management relies on forced air cooling, allowing the power electronics to release heat into the airflow rather than into the mounting panel alone. Because the cooling air carries heat away from the enclosure interior, the installation needs a clear path for intake and exhaust flow. Line-side interference is reduced by an integrated mains filter, which helps limit conducted noise on the incoming supply and reduces disturbance to nearby equipment on the same power system. Control circuitry remains active during mains outages through 24 V stand-by power, so logic functions and communication can remain available during short interruptions. The power section uses a three-phase AC converter arrangement, making the unit suitable for standard industrial supply systems and separating incoming power conversion from the motor output stage inside the controller.
Frequently Asked Questions about RD51.1-4N-007-L-C1-FW:
Q: Does the RD51.1-4N-007-L-C1-FW include a mains filter?
A: The RD51.1-4N-007-L-C1-FW is equipped with an integrated mains filter for power quality improvement.
Q: What cooling method does the RD51.1-4N-007-L-C1-FW use?
A: This model features forced air cooling to manage internal temperatures during operation.
Q: What is the rated power of the RD51.1-4N-007-L-C1-FW model?
A: The rated power output of the RD51.1-4N-007-L-C1-FW drive controller is 7.5 kW.
Q: What supply voltage range can the RD51.1-4N-007-L-C1-FW accept?
A: The RD51.1-4N-007-L-C1-FW supports an input voltage range from 380 to 480 V in a 3-phase AC system.
Q: What control type does the RD51.1-4N-007-L-C1-FW drive controller use?
A: The control type for this model is U/f curve control for variable frequency applications.
