KDA 3.1-050-3-AYD-U1
KDA Spindle Drives
The KDA 3.1-050-3-AYD-U1, Bosch Rexroth Indramat, KDA Spindle Drives model is a precision digital servo amplifier engineered for demanding industrial automation. It delivers 5.0 kW of continuous spindle power via a 3×380-480 V AC input and regulates an internal 300 V DC Bus Voltage for stable inverter drive. Encased in a rugged IP20 Protection Class chassis and weighing Approx. 17 kg, it balances thermal resilience with manageable handling. Fan-cooled airflow maintains optimal junction temperatures even under high duty cycles.
This drive accepts high-speed motion feedback via Resolver / Encoder inputs and supports an optional SERCOS (optional) Communication Interface for deterministic control. Torque is modulated with a Speed Command Value: Analog +/- 10V scheme and auxiliary synchronous inputs to refine acceleration profiles. The unit sustains rated currents up to 8.5 A and outputs a 3×0-480 V AC motor voltage across a temperature range of 0 to 45°C. Compact 485 mm H × 140 mm W × 382 mm D dimensions allow installation in standard rack frames, while the integrated heatsink blower enhances forced-air cooling.
Engineered for CNC milling, precision grinding, and high-speed drilling applications, the KDA 3.1-050-3-AYD-U1 integrates seamlessly into automation architectures to reduce setup times. Its digital servo amplifier topology and robust fan-cooled design ensure long-term reliability in dusty or moderate-humidity environments. This module’s versatile feedback, command, and communication options make it ideal for spindles requiring tight positional accuracy and consistent torque delivery.
Technical Specifications
Communication Interface
SERCOS (optional)
Control Type
Digital servo amplifier
Cooling Method
Fan cooled
Dimensions
485 mm H x 140 mm W x 382 mm D
Feedback Type
Resolver / Encoder
Input Voltage
3 x 380-480 V AC
Motor Rated Power
5.0 kW
Operating Temperature
0 to 45°C
Output Voltage
3 x 0-480 V AC
Protection Class
IP20
Rated Current
8.5 A
Weight
Approx. 17 kg
Series
3
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 3.1-050-3-AYD-U1. Exchange
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