KDA 3.3-150-3-DPD-U1
KDA Spindle Drives
Rated 4.3 stars (11 total reviews)
The KDA 3.3-150-3-DPD-U1 spindle drive is manufactured by Bosch Rexroth Indramat and belongs to the KDA Spindle Drives series. As a spindle drive, it converts DC bus power into controlled three-phase output for machine-tool spindles, enabling precise speed and position regulation within automated production cells. Variant index 3 within the series indicates its hardware revision.
Internally the unit operates from a DC link of 300 VDC, and it supplies up to 150 A of phase current to the spindle motor, a range sized for medium-power machining centers. Thermal energy is extracted by a Mounted Heatsink Blower; airflow is generated by a blower fed from 115 V/50-60 Hz so cabinet designers must provide that auxiliary source. The heat exchanger works in a Forced cooling configuration, meaning fan operation is continuous whenever the drive is enabled. Hardware revision “3” of the KDA platform introduces a second encoder socket so the controller can accept spindle or auxiliary motor feedback without external splitters. Rated values apply within the specified DC bus range, and they allow dynamic ramping when combined with the digital speed loop.
Environmental and communication parameters define installation limits. The drive maintains full ratings from 5 to 45 Degrees Celsius and up to 1000 M above sea level, so extra derating is unnecessary in standard factory floors. Motion commands arrive through a Digital (16 bit parallel) speed word, while coarse positioning can be issued over the additional interface that carries a Position command value, digital. A dedicated input marked “ENC2” accepts feedback for spindle feedback or additional motor feedback, enabling synchronous control of a tool orientation encoder. Together these channels allow closed-loop operation without analog transducers, complementing the drive’s internal current regulators and bus electronics.
Technical Specifications
AC Source for Heatsink Blower
115V/50-60Hz
AC Supply Source for Heatsink Blower
115 VAC
Additional Interfaces
Position command value, digital
Ambient Temp Range
5 to 45 Degrees Celsius
Aux. Encoder Input
With for Spindle or Second Motor Feedback
Aux. Interface
Position Command Value Digital 16-Bit Parallel
Cooling
Mounted Heatsink Blower
Cooling Mode
Forced Cooling
DC Bus Voltage
300 V
DC Supply Voltage
300 VDC
Design
3
Max Installation Elevation
1000M above sea level
Product
KDA
Product Type
Spindle Drive
Rated Current
150 A
Second Encoder Input
For spindle feedback or add. motor feedback
Series
3
Speed Command Value
Digital (16 bit parallel)
Common Misspellings
Fax: 1-919-867-6204
Shipping & Payment Options
Warranty
Indramat USA 1 Year Warranty
Repair
We offer a repair service for the KDA 3.3-150-3-DPD-U1. Exchange
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