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R911203639 (RD51.1-4B-090-L-C1-FW)

RD 500 Drive Controllers

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The Bosch Rexroth drive system with MPN R911203639 (RD51.1-4B-090-L-C1-FW) is a three-phase converter designed for operation with synchronous and induction motors. It supports a nominal connecting voltage of 3 x AC 380–480 V (±10%) at 50–60 Hz and supplies a continuous power output of 90 kW. The device utilizes forced cooling with a built-in blower for temperature regulation and is suitable for ambient temperatures between 0 and +40°C, up to 1000 m installation altitude. It features an integrated brake chopper, operator panel, analog I/O, relay output, RS232/RS485 serial interface, supports external 24 V standby power, and uses a U/f control curve. Firmware is factory assigned.

Technical Specifications

Type
Three-phase Drive System

Nominal Voltage
AC 380 – 480 V +/-10%

Voltage Frequency Control
Yes

Internal Brake Chopper
Yes

Continuous Power
90 kW

Cooling Method
Forced, with internal blower

Input Voltage Frequency
50 – 60 Hz

Output Frequency
0 – 200 Hz

Nominal Efficiency
0.97 – 0.98

Operating Temperature
0 to +40 degree Celsius

Installation Maximum Height
1000 m/sea level

Operator Panel
Yes

Analog Output
1

Analog Input
1

Relay Output
1

Serial Interface
RS232/RS485

Switching Frequency
4 kHz, 6 kHz, 8 kHz, 12 kHz

Rated Current (at 4 kHz)
165 A

Rated Output
109 kVA

Firmware
Ordered separately.

Common Misspellings

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Warranty
1-year-warranty
Indramat USA 1 Year Warranty
Repair
We offer a repair service for the RD51.1-4B-090-L-C1-FW.
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