RD51.1-4N-007-L-DF-FW Bosch Rexroth Indramat
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MPN: R911200674
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The Bosch Rexroth Indramat RD51.1-4N-007-L-DF-FW is a drive controller from the RD 500 Drive Controllers series with a rated power of 7.5 kW and a voltage range of 380 to 480 V. It features forced air cooling, U/f curve control, and comes without a built-in brake chopper. The controller has an integrated mains filter and accepts a converter 3 x AC supply.
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Product Description:
The RD51.1-4N-007-L-DF-FW is a drive controller produced by Bosch Rexroth Indramat as part of the RD 500 Drive Controllers series. Designed for cabinet installation, the unit modulates inverter output to regulate induction-motor speed throughout automated material-handling or process lines. By adjusting the motor voltage and frequency, it supports coordinated movement, energy savings, and consistent torque delivery in conveyor sections, pumps, and mixers commonly found in manufacturing cells.
It is powered from a three-phase AC converter supply and accepts line voltages from 380 to 480 V; the controller remains functional while line variation stays within a margin of ±10 %. Within this window, it can deliver a continuous shaft output of up to 7.5 kW, matching medium-frame motors used on small presses or fan drives. Speed regulation is achieved through U/f curve control, so the ratio between output voltage and frequency remains fixed, keeping magnetic flux at the desired level during ramp-up or load changes. Internally, the device reports phase current via the U6, V6, and W6 monitor points, allowing the supervisory PLC to track filter performance and detect imbalance.
Thermal management relies on forced air cooling; a top-mounted blower moves cabinet air across the heat sink to maintain semiconductor junction temperatures. Because the controller is supplied without a built-in brake chopper, any regenerative braking energy must be handled by an external resistor or returned to the mains. Line disturbance is minimized by the integrated mains filter, which suppresses conducted emissions and supports compliance with industrial EMC limits. For safety interlocks and emergency power support, a NAMUR terminal strip with an external 24 V standby source is available. The hardware belongs to design generation 1.
Frequently Asked Questions about RD51.1-4N-007-L-DF-FW:
Q: What is the rated power output of the RD51.1-4N-007-L-DF-FW drive controller?
A: The RD51.1-4N-007-L-DF-FW drive controller operates with a rated power of 7.5 kW, suitable for medium power industrial applications.
Q: What supply type does the RD51.1-4N-007-L-DF-FW drive controller require?
A: This model requires a three-phase AC supply, supporting 380 to 480 V input range.
Q: What method of cooling is provided in the RD51.1-4N-007-L-DF-FW?
A: Forced air cooling is used in this controller to maintain safe operating temperatures during use.
Q: Does the RD51.1-4N-007-L-DF-FW include a mains filter?
A: The RD51.1-4N-007-L-DF-FW features an integrated mains filter for electrical noise reduction.
Q: Is there a built-in brake chopper in the RD51.1-4N-007-L-DF-FW drive controller?
A: The brake chopper is not built into the RD51.1-4N-007-L-DF-FW model.
