RD52.2-4B-003-L-A2-FW Bosch Rexroth Indramat
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MPN: R911201244
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The Bosch Rexroth Indramat RD52.2-4B-003-L-A2-FW is a drive controller from the RD 500 Drive Controllers series. It features field oriented vector control, a built-in brake chopper, and forced air cooling. The controller operates with a rated power of 3.0 kW and supports a voltage range of 380 to 480 V with an integrated mains filter.
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Product Description:
The RD52.2-4B-003-L-A2-FW is manufactured by Bosch Rexroth Indramat and belongs to the RD 500 Drive Controllers series. This controller is installed between the three-phase mains and an industrial motor to modulate voltage and frequency so that speed, direction, and torque can be matched to machine demands. As a modular component, it integrates into cabinet racks that coordinate motion, positioning, and energy usage throughout automated assembly and material-handling equipment. This arrangement gives the drive a central role in applications that need adjustable motor performance instead of fixed-speed operation.
Input power is accepted through a three-phase AC converter front end that tolerates supply variations of 380 to 480 V, and the ±10% margin helps the unit remain functional when plant voltage fluctuates. Its nominal output is 3.0 kW, which is the continuous mechanical power the connected motor can deliver without derating. Closed-loop regulation is achieved with field-oriented vector control, which keeps motor current aligned for fast response during load changes and low-speed operation. Thermal stress is limited by forced-air cooling, where an internal fan moves air across heat sink fins to remove losses generated by the power semiconductors. This control method helps maintain stable torque production while the motor accelerates, runs at steady speed, or slows under command.
The unit is in design generation 2 and shares a common backplane and signal topology with other RD52 modules. For deceleration events, it contains a built-in brake chopper that diverts excess DC-link energy to an external resistor and helps prevent overvoltage trips during rapid stopping. Harmonic attenuation is aided by an integrated mains filter, so additional line components may not be needed in some installations. The standard function set includes external standby power and a starting lockout that blocks unintended motor runs after power is restored.
Frequently Asked Questions about RD52.2-4B-003-L-A2-FW:
Q: Does the RD52.2-4B-003-L-A2-FW drive controller include a brake chopper?
A: The RD52.2-4B-003-L-A2-FW features a built-in brake chopper for effective energy dissipation during braking cycles.
Q: What control type is used by the RD52.2-4B-003-L-A2-FW drive controller?
A: This model uses field oriented vector control, enabling precise regulation of motor torque and speed.
Q: What cooling method does the RD52.2-4B-003-L-A2-FW employ?
A: The RD52.2-4B-003-L-A2-FW is equipped with forced air cooling to maintain optimal operating temperature.
Q: What is the rated power output of the RD52.2-4B-003-L-A2-FW?
A: This drive controller is rated for 3.0 kW, supporting moderate-power industrial applications.
Q: What is the supply voltage range for the RD52.2-4B-003-L-A2-FW drive controller?
A: The RD52.2-4B-003-L-A2-FW accepts a voltage range from 380 to 480 V supplied as three-phase AC.
