RD52.1-4B-007-L-V1-FW/S136 Bosch Rexroth Indramat
Wake Industrial LLC is not an authorized distributor of this product.
Wake Industrial LLC is not an authorized distributor of this product.
MPN: R911201383
The Bosch Rexroth Indramat RD52.1-4B-007-L-V1-FW/S136 is a drive controller from the RD 500 Drive Controllers series with a rated power of 7.5 kW and operates on a voltage range of 380 to 480 V. This controller features field oriented vector control, an integrated mains filter, and a built-in brake chopper. It uses forced air cooling and allows for 24 V external stand-by power.
Internal Product Review
The RD52.1-4B-007-L-V1-FW/S136 is a drive controller with field oriented vector control and 7.5 kW rated power. Forced air cooling and an integrated mains filter support stable operation and cleaner cabinet integration. A built-in brake chopper makes this unit a strong choice for responsive drive applications.
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Product Description:
The RD52.1-4B-007-L-V1-FW/S136 is a drive controller produced by Bosch Rexroth Indramat as part of the RD 500 Drive Controllers series. Designed for cabinet-mounted motion systems, it interfaces between a three-phase mains supply and an induction or synchronous motor to regulate speed, torque, and braking energy in automated machinery. It serves as the power conversion stage between the incoming supply and the motor, adjusting output frequency and voltage to match process demands. This allows controlled acceleration, stable running speed, and regulated deceleration in conveyors, pumps, and packaging axes. Closed-loop behavior helps the connected motor respond more consistently to changing load conditions during production cycles.
It operates on a three-phase AC supply and delivers a continuous output of 7.5 kW to the connected motor. The input terminals accept line voltages from 380 to 480 V, which matches common industrial distribution levels. The power stage remains within regulation when the mains amplitude shifts by ±10 % of nominal. Heat from the IGBTs is removed by forced air cooling, so airflow through the heatsink must remain unobstructed during operation. This power level suits medium-duty industrial axes and general-purpose machinery where constant output is required over extended operating periods. A clear cooling path is important when the controller is used for sustained load duty.
A built-in brake chopper dissipates regenerated energy during rapid deceleration, preventing intermediate-circuit overvoltage. Precision current regulation is provided by field-oriented vector control, which supports smooth low-speed operation and fast dynamic response. The control method also improves torque behavior at low speed, where basic scalar control is often less stable. For standby conditions, the controller accepts 24 V standby power from an external supply so the control electronics remain active when the main bus is isolated. Conducted emissions are reduced by an integrated mains filter, which helps limit electrical noise returning to the supply. The unit is in Design Generation 1.
