RD52.1-4B-110-R-NN-FW Bosch Rexroth Indramat
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MPN: R911200967
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The Bosch Rexroth Indramat RD52.1-4B-110-R-NN-FW is a drive controller from the RD 500 Drive Controllers series. It features field-oriented vector control and a built-in brake chopper. This controller is rated for 110 kW power and operates with a voltage range of 380 to 480 V using a 3-phase AC supply.
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Product Description:
The RD52.1-4B-110-R-NN-FW is a drive controller produced by Bosch Rexroth Indramat for the RD 500 Drive Controllers series. Within an automated line, it converts fixed-frequency mains power into a variable output that matches the real-time torque and speed demands of an induction or synchronous motor. This operating method lets the connected axis respond quickly when load conditions change during production. It is intended for systems that need steady motor control during material handling, packaging, and machining cycles.
The controller uses a three-phase AC converter input. It accepts line voltages between 380 to 480 V and can remain operational when the supply fluctuates by up to ±10 %. Closed-loop regulation relies on field-oriented vector control, a method that separates flux and torque so rapid command changes do not disturb motor magnetization. This helps the motor respond smoothly across changing speeds and load demands. Conducted radio-frequency noise is suppressed by an integrated mains filter, which reduces the need for extra line components in many cabinet layouts. The required software is ordered separately, and the basic unit comes without optional technology functions installed.
The power stage delivers a continuous output of 110 kW to the motor terminals. Excess regenerative energy is routed to a resistor through the built-in brake chopper, which helps prevent DC-link overvoltage during rapid deceleration. Semiconductor losses are carried away by liquid cooling with an internal pump, so internal temperatures remain stable even when surrounding airflow is limited. The internal liquid circuit removes heat from the power section without relying only on cabinet air movement. Mechanical dimensions and terminal positions follow Design generation 1, which supports installation in existing RD 500 cabinet kits. The basic configuration ships without additional application functions, leaving the controller ready for software selected for the intended process.
Frequently Asked Questions about RD52.1-4B-110-R-NN-FW:
Q: Does the RD52.1-4B-110-R-NN-FW drive controller include a brake chopper?
A: The RD52.1-4B-110-R-NN-FW is equipped with a built-in brake chopper for energy management during braking operations.
Q: What type of control does the RD52.1-4B-110-R-NN-FW drive controller use?
A: This model supports field oriented vector control, providing improved accuracy and torque control.
Q: How is the RD52.1-4B-110-R-NN-FW drive controller cooled?
A: Cooling is achieved by a liquid cooling system with an internal pump, which is standard for models rated at 132 kW or higher.
Q: What is the rated power output of the RD52.1-4B-110-R-NN-FW drive controller?
A: The RD52.1-4B-110-R-NN-FW operates with a rated power of 110 kW for demanding drive requirements.
Q: What supply voltage range does the RD52.1-4B-110-R-NN-FW support?
A: This controller can operate with a voltage range of 380 to 480 V AC, suitable for industrial power supplies.
