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R911200042 (RD51.1-7N-001-L-NN-FW)

RD 500 Drive Controllers

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The Rexroth R911200042 (RD51.1-7N-001-L-NN-FW) is a three-phase drive control device engineered for synchronous and induction motors. It supports integration with AC drive converters, DC supply inverters, rectifiers, and supply modules capable of regenerative feedback. The unit features a start inhibitor function in line with EN 60 204-1 requirements. Control is realized using a U/f curve control line. It operates at a nominal connecting voltage of 530 to 670 V DC (±10%) and delivers a rated power of 1 kW. The drive lacks a built-in brake chopper and relies on forced air cooling for configurations rated at 110 kW or higher. An RS485 interface using USS protocol enables PLC-based converter control. Installation requires compliance with machine-specific national safety and application regulations.

Technical Specifications

Device Type
Drive Control Device

Power Rating
1 Kilowatt

Cooling Model
Forced Air-Cooling

U/f Curve Control Line
Present

Converter
Without Built-In Brake Chopper

Voltage
Inverter DC 530 - 670 Volts (+/- 10 %)

AC Power
400 to 480 Volts

Interface
RS485 Interface supporting USS protocol

Shipping
Global

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Warranty
1-year-warranty
Indramat USA 1 Year Warranty
Repair
We offer a repair service for the RD51.1-7N-001-L-NN-FW.
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