RD51.1-4N-005-L-D1-FW Bosch Rexroth Indramat
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MPN: R911200532
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The Bosch Rexroth Indramat RD51.1-4N-005-L-D1-FW is a drive controller from the RD 500 Drive Controllers series. It operates with a rated power of 5.5 kW and supports a voltage range of 380 to 480 V with a ±10% tolerance. The controller features U/f curve control, forced air cooling, an integrated mains filter, and does not include a built-in brake chopper.
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Product Description:
The RD51.1-4N-005-L-D1-FW is manufactured by Bosch Rexroth Indramat and belongs to the RD 500 Drive Controllers series. This AC converter links the plant power supply to induction motors and adjusts voltage and frequency so production equipment can vary speed without mechanical gear changes. In industrial automation, it provides regulated power for conveyor sections, pump arrays, and material-handling stations, while front-mounted terminals allow direct access to operating parameters during setup. By controlling motor speed electronically, the unit supports smoother process operation and reduces the need for fixed-speed mechanical arrangements.
It delivers a nominal output of 5.5 kW, giving suitable capacity for mid-frame motors used in process drives. The input section accepts 380 to 480 V, and a tolerance of ±10 % accommodates common plant voltage variation. As a three-phase AC converter, the unit rectifies and inverts incoming power to produce a controlled output for U/f operation. Operational heat is removed by forced air cooling, allowing continuous full-load operation when the controller is mounted with the required clearance. Additional protection functions monitor phase loss, overcurrent, and motor overtemperature in real time, which helps the drive respond quickly to abnormal operating conditions.
An integrated mains filter suppresses conducted emissions and helps reduce interference on the supply connection. The lack of a built-in brake chopper means any dynamic braking resistor must be installed externally when rapid deceleration is required. Control wiring is routed through a NAMUR terminal strip, and the logic circuits remain energized by 24 V standby power for parameter retention during mains loss. This arrangement allows stored settings to remain available after an interruption and keeps the control section ready for a controlled return to operation.
Frequently Asked Questions about RD51.1-4N-005-L-D1-FW:
Q: What control method does the RD51.1-4N-005-L-D1-FW drive controller use?
A: The RD51.1-4N-005-L-D1-FW is equipped with U/f curve control for managing motor speed.
Q: Which cooling method is utilized by the RD51.1-4N-005-L-D1-FW controller?
A: This drive controller features forced air cooling to maintain optimal operational temperatures.
Q: What voltage range does the RD51.1-4N-005-L-D1-FW accept?
A: The voltage range supported by this model is 380 to 480 V, suitable for standard industrial power supplies.
Q: Does the RD51.1-4N-005-L-D1-FW come with a built-in mains filter?
A: It includes an integrated mains filter to help reduce electrical noise and maintain performance.
Q: What is the rated power capacity of the RD51.1-4N-005-L-D1-FW controller?
A: The rated power output of this drive controller is 5.5 kW.
