RD51.1-7N-001-P-V1-FW Bosch Rexroth Indramat
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MPN: R911200287
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The Bosch Rexroth Indramat RD51.1-7N-001-P-V1-FW is a drive controller from the RD 500 Drive Controllers series. It features U/f curve control and supports a voltage range from 530 to 670 V. The controller uses a heat dissipation panel for cooling and operates with external 24 V stand-by power.
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Product Description:
The RD51.1-7N-001-P-V1-FW is manufactured by Bosch Rexroth Indramat and belongs to the RD 500 Drive Controllers series. It is a drive controller intended for speed and torque regulation of three-phase induction motors used in material-handling lines, pumps, and general automation cells. By converting constant DC bus energy into variable-frequency, variable-voltage output, the unit allows motor performance to match real-time load requirements and supports steady operation where motor speed must change with process demand while keeping panel layouts compact in medium-power installations.
This model operates from an inverter DC supply that is normally produced by a shared rectifier stage, and the permissible link voltage spans 530 to 670 V, allowing connection to a 400 V AC supply with regenerative front-end options. Motor excitation is handled through U/f curve control, a method that keeps stator flux nearly constant across the speed range and suits pumps and fans that do not require vector feedback. Thermal management relies on heat dissipation panel cooling for units up to 18.5 kW, so the installation surface must absorb the generated losses without forced airflow. The unit is supplied without a built-in brake chopper, so dynamic braking energy must be routed to an external resistor when rapid deceleration is required.
For control-cabinet power continuity, the device offers 24 V standby power from an external source, keeping the logic active during input power interruptions. The unit is design generation 1, and the firmware ordered as a separate subposition allows the required function set to be selected for the application. As a programmable Drive Controller, it supports application-specific settings for acceleration ramps, protective thresholds, and communication links, so operating behavior can be adjusted to suit different machine functions.
Frequently Asked Questions about RD51.1-7N-001-P-V1-FW:
Q: Does the RD51.1-7N-001-P-V1-FW drive controller have an integrated brake chopper?
A: The RD51.1-7N-001-P-V1-FW does not include a built-in brake chopper.
Q: What type of control method does the RD51.1-7N-001-P-V1-FW use?
A: This model implements U/f curve control for motor management.
Q: How is the RD51.1-7N-001-P-V1-FW drive controller cooled?
A: A heat dissipation panel is used for cooling on the RD51.1-7N-001-P-V1-FW for power ratings up to 18.5 kW.
Q: What is the supported input voltage range for the RD51.1-7N-001-P-V1-FW?
A: The RD51.1-7N-001-P-V1-FW operates within a voltage range of 530 to 670 V.
Q: What stand-by power feature is included with the RD51.1-7N-001-P-V1-FW?
A: This drive controller offers external 24 V stand-by power functionality.
