RD51.1-4B-015-L-V1-FW Bosch Rexroth Indramat
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MPN: R911200596
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The Bosch Rexroth Indramat RD51.1-4B-015-L-V1-FW is a drive controller from the RD 500 Drive Controllers series with a rated power of 15.0 kW and supports a voltage range from 380 to 480 V. It features U/f curve control, a built-in brake chopper, and is cooled using forced air. The device includes an integrated mains filter and supports converter 3 x AC supply.
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Product Description:
The RD51.1-4B-015-L-V1-FW drive controller is manufactured by Bosch Rexroth Indramat for the RD 500 Drive Controllers series. It serves as a converter between the plant’s three-phase mains supply and an induction motor, modulating voltage and frequency so line-powered machines can vary speed as operating demand changes. In material handling systems, packaging equipment, and pump stations, the unit accepts high-level commands from a PLC and delivers the shaped AC output needed by the motor. This arrangement allows the connected machine to run at controlled speed instead of remaining fixed at line frequency.
This RD 500 unit delivers a rated output of 15.0 kW, which suits medium-power machines that require steady torque during continuous operation. It accepts a mains input of 380 to 480 V and remains within its specified tolerance window of ±10%, making it suitable for common industrial supply conditions with moderate variation. Motor flux is managed through U/f curve control, a scalar method that adjusts voltage in proportion to frequency to maintain consistent magnetization across the speed range. During deceleration, a built-in brake chopper dissipates returned energy and helps protect the DC link when the load slows quickly.
The power stage uses a 3 x AC converter topology, which draws balanced current from all three phases. Thermal management relies on forced air cooling, so cabinet airflow must remain unobstructed during operation. For control availability during mains loss, the electronics can be powered by 24 V standby power, allowing access to parameters without enabling motor output. An integrated mains filter attenuates conducted noise on the supply connection. The unit is identified as design generation 1, which distinguishes this version within the product line without changing its basic operating role.
Frequently Asked Questions about RD51.1-4B-015-L-V1-FW:
Q: Does the RD51.1-4B-015-L-V1-FW include a brake chopper?
A: This model features a built-in brake chopper for dynamic braking functions.
Q: What type of control does the RD51.1-4B-015-L-V1-FW offer?
A: The RD51.1-4B-015-L-V1-FW operates using U/f curve control for motor management.
Q: What is the cooling method for the RD51.1-4B-015-L-V1-FW?
A: Forced air cooling is used to maintain the operating temperature of this drive controller.
Q: What input voltage range does the RD51.1-4B-015-L-V1-FW support?
A: This drive controller supports a voltage range of 380 to 480 V for its input power.
Q: What is the rated power output of the RD51.1-4B-015-L-V1-FW drive controller?
A: The RD51.1-4B-015-L-V1-FW delivers a rated power output of 15.0 kW.
