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R911255747 (KDA 3.2-050-3-D00-W1)

KDA Spindle Drives

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The Bosch MPN R911255747 (KDA 3.2-050-3-D00-W1) is a digital drive controller designed for 2AD series synchronous motors and 1MB frameless spindle motors, supporting a rated output power between 3 and 22 kW. It delivers a rated output current of 50 A with a continuous current output of 35 A, operating at a nominal DC bus voltage of 300 V. Control, diagnostic, and monitoring functions are managed by an integrated microprocessor. The unit supports a 16-bit parallel speed command value and requires separate 24 V and ±15 V power inputs, consuming 1.2 A and 160 mA, respectively. No encoder or auxiliary interfaces are included. Cooling is provided by a heatsink blower with a 220 V AC supply. The device is rated for operation in ambient temperatures from 5 °C to 45 °C, with reduced data up to 55 °C, and conforms to protection class IP10 per DIN 40 050.

Technical Specifications

Power Support Range
3 to 22 Kilowatts

Functionality
Drive Control, Diagnostics and Monitoring

Application
Speed Control and Position Control

Rated Current Output
50 Amps

Nominal Voltage
300 Volts DC

Continuous Current Output
35 Amps

Control Electronics Current Draw
1.2 Amps

Measuring Voltage Current Draw
160 Milliamps

Speed Command Value
16-bit Parallel (digital)

Encoder Input Availability
Not Available

Auxiliary Interfaces
Not Supported

Cooling Method
Forced Air from Heatsink Blower

Heatsink Blower Input
220 Volts AC

Operating Temperature
5 to 45 degrees Celsius

Max Operating Temp with Reduced Data
55 degrees Celsius

Storage and Transport Temperature
-30 to +85 degrees Celsius

Max Installation Elevation
1000 meters

Relative Humidity
F as per DIN 40 040

Protection Class
IP10

Drive Weight
16.6 Kilograms

Mounting Kit Weight
1.7 kilograms

Blower Unit Weight
4.2 kilograms

User Level
Trained Personnel.

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Warranty
1-year-warranty
Indramat USA 1 Year Warranty
Repair
product repair We offer a repair service for the KDA 3.2-050-3-D00-W1.
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