KDA 2.1-050-3-AYI-U1
KDA Spindle Drives
The Bosch Rexroth Indramat KDA 2.1-050-3-AYI-U1 from the KDA Spindle Drives series is a robust AC Servo Driver Type designed for demanding industrial automation applications. It accepts a 3-phase 400 V AC input voltage with an Input Frequency of 50/60 Hz and delivers a Rated Continuous Current of 50 A. The unit features a Protection Class IP20 enclosure and is optimized for Panel mounting to simplify integration into control cabinets. Built to withstand rigorous operation, the drive also supports a Peak Current of 3 x Rated Current for short-duration torque demands.
Featuring versatile interfaces, the KDA 2.1-050-3-AYI-U1 offers both Control Interface Analog, digital I/O and an optional Communication Interface: RS232/RS485 for flexible connectivity. Speed regulation is achieved via a Speed Command Value of Analog +/-10V, while feedback precision is ensured through an Aux. Encoder Input with Auxiliary and Synchronous Inputs (AS 35 interface). The internal design includes a DC Bus Voltage of 300 V rail coupled with Internal fan cooling to maintain stable operation under continuous load. With a Power Output typically up to 20 kW, this spindle drive adapts to a wide range of motor sizes and machine tools.
Compact yet sturdy, the driver measures approximately 445 x 220 x 360 mm and weighs Approx. 25 kg, making it suitable for panel-mounted configurations in space-constrained environments. Its combination of high current capacity, flexible I/O, and efficient thermal management makes the KDA 2.1-050-3-AYI-U1 an ideal choice for precision spindle control in modern manufacturing systems.
Technical Specifications
Communication Interface
Optional serial (RS232/RS485)
Control Interface
Analog, digital I/O
Cooling Method
Internal fan cooling
Dimensions
Approx. 445 x 220 x 360 mm (varies slightly by model configuration)
Input Frequency
50/60 Hz
Input Voltage
3-phase 400 V AC (-15% / +10%)
Mounting
Panel mounting
Peak Current
3 x Rated Current (approx.)
Power Output
Depends on application, typically up to 20 kW (refer to datasheet)
Protection Class
IP20
Rated Continuous Current
50 A
Type
AC Servo Driver
Weight
Approx. 25 kg
Product
KDA
Series
2
Design
1
DC Bus Voltage
300 V
Speed Command Value
Analog +/- 10V
Aux. Encoder Input
With Auxiliary and Synchronous Inputs (Due to AS 35 and Speed Command Value = A)Aux. Interface1
Common Misspellings
Shipping & Payment Options
Warranty
Repair
We offer a repair service for the KDA 2.1-050-3-AYI-U1. Exchange
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