KDA 2.1-050-3-LYI-W1
KDA Spindle Drives
The Bosch Rexroth Indramat KDA 2.1-050-3-LYI-W1 is a precision main spindle drive from the KDA Spindle Drives series, engineered for demanding industrial automation applications. It delivers a continuous current of 50 A and can handle a peak current of 75 A, ensuring robust torque delivery and rapid dynamic response. The drive accepts a three-phase rated supply voltage of 3x 230/400 V AC, 50/60 Hz and operates on a DC bus voltage of 300 V, providing stable power conversion for AC servo motors. Integrated monitoring and control functions guarantee reliable performance across variable loads and speeds.
The unit features an internal cooling system driven by a 220 VAC heatsink blower, combined with an IP10 (standard open frame) enclosure that facilitates efficient heat dissipation and easy access for maintenance. It supports both SERCOS communication interface and analog signal inputs, along with a resolver feedback type for precise rotor position sensing. Integral overload protection safeguards the drive under transient conditions, while its specified operating temperature range of 0 °C to +45 °C accommodates typical shop-floor environments. Robust construction and standardized mounting dimensions simplify integration into machine tool control cabinets.
Optimized for driving AC servo motors, the KDA 2.1-050-3-LYI-W1 offers high stiffness and tight speed regulation for demanding spindle tasks. With a compact footprint and a weight of approximately 18 kg, it balances performance, durability, and space efficiency in high-density automation racks. Designed exclusively by Bosch Rexroth Indramat, this spindle drive delivers reliable, high-precision control for advanced manufacturing systems.
Technical Specifications
Communication Interface
SERCOS or Analog signal
Compatible Motors
AC Servo Motors
Continuous Current
50 A
Cooling Type
Internal Cooling
DC Bus Voltage
300 V
Enclosure Type
IP 10 (standard open frame)
Feedback Type
Resolver
Integral Overload Protection
Yes
Operating Temperature Range
0 °C to +45 °C
Peak Current
75 A
Power
Continuous
Rated Current
50 A
Rated Supply Voltage
3x 230/400 V AC, 50/60 Hz
Stiffness
High
Weight
Approximately 18 kg
Product
KDA
Series
2
Design
1
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-LYI-W1. Exchange
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