KDA3.2-100-3-A00

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The KDA3.2-100-3-A00 spindle drive by Rexroth Indramat offers 100 A rated current and operates at a DC bus voltage of 300 V DC. Its integrated cooling system ensures high performance and reliability.

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Product Description:

The KDA3.2-100-3-A00 Spindle Drive by Rexroth Indramat offers precise control and efficiency. It is designed for industrial automation applications. With a focus on high performance, the drive is particularly suited for spindle motor control that provides accurate positioning and high stiffness. Key features include a rated current of 100 A, a continuous current capability of 70 A, and an integrated cooling system that ensures reliable operation within the specified temperature range.

The KDA3.2-100-3-A00 spindle drive operates at a DC bus voltage of 300 V DC and requires a 220 V AC supply to power the integrated blower for forced cooling. It supports speed control through an analog input of +/-10V that ensures smooth and precise motor operation. The drive is designed to function at frequencies between 50-60 Hz. It does not include auxiliary encoder input but it focuses on core functionalities. The cooling system which features a heatsink and blower ensures that the drive maintains stable performance even under extended use. With a protection rating of IP10, the KDA3.2-100-3-A00 spindle drive provides basic protection against solid particles that makes it suitable for controlled environments. The operating temperature range is 5 degrees C to 45 degrees C which ensures versatility in different operational settings.

Measuring 325 mm x 150 mm x 390 mm and weighing around 16 kg, the KDA3.2-100-3-A00 spindle drive is compact and easy to integrate into existing systems. It has a current consumption of 1.4 A at 24V and is specifically tailored for spindle motor applications where precision and consistency are crucial. Its design prioritizes high torque and accurate motor control that enhance performance for demanding tasks. These features make it a reliable choice for industries requiring detailed and precise motor movements without compromising on stability or efficiency.

AC Supply Voltage
220 V AC
Continuous Current
70 A
Current Consumption
1.4 A
DC Bus Voltage
300 V DC
Operating Frequency
50-60 Hz
Operating Temperature Range
5 degrees C to 45 degrees C
Protection Rating
IP10
Rated Current
100 A
Speed Control Input
+/-10V analog input
Torque Capability
High torque for spindle motors
Fault / LED code (F-class) Likely cause Quick corrective action
F218 – heatsink over-temperature Internal blower clogged or cabinet > 45 °C Clean / replace fan, add airflow, wait to cool, then Reset Class 1 Diagnostics. 
F219 – motor over-temperature 2AD / 1MB thermistor ≥ 155 °C Lower load, check external motor fan, allow full cool-down, re-enable. 
F220 – bleeder resistor overheating Excess regenerative energy during braking Lengthen decel ramps or add / up-size external brake resistor; clear when cool. 
F226 – DC-bus undervoltage KDV supply brown-out or loose bus bars Restore mains & bus ≥ 300 V, retighten connectors, then reset drive. 
F228 – following-error too large Spindle can’t track speed demand Lower accel/vel ramps, inspect mechanics for drag, retune velocity loop.
F229 – encoder 1 quadrant error Resolver / encoder signal faulty Reseat shielded cable, route away from power leads, swap encoder if fault repeats. 
F230 – encoder frequency too high Spindle speed exceeds interface limit Limit max rpm or fit lower-PPR encoder; clear and restart.
F233 – +24 V control-supply error Aux 24 V lost (often via E-Stop loop) Restore 24 V rail, verify E-Stop chain, Reset Class 1.
F234 – emergency-stop active E-Stop contact open Locate & reset E-Stop, restore 24 V, then power-cycle or reset.
No LEDs, blower running Drive in thermal / hardware self-protect Measure 300 V bus & 24 V, test fan supply (220 VAC); if self-test fails, replace drive. 
Model Firmware design Rated current (A) DC-bus (V) Cooling Notes
KDA 3.2-100-3-A00-W1  3.2 100 300 Heatsink blower Analog ±10 V speed cmd. 
KDA 3.2-150-3-A00-W1 3.2 150 300 Blower Same design, higher current for large 1 MB spindles. 
KDA 3.2-050-3-A00-W1 3.2 50 300 Blower Lighter spindle axes, drop-in lower-current swap. 
KDA 3.3-100-3-A00-W1 3.3 100 300 Blower Newer 3.3 firmware, extended diagnostics. 
KDA 3.1-100-3-A00-W1 3.1 100 300 Blower Earlier 3.1 design; core specs identical. 
KDA 2.1-050-3-A00-W1 2.1 50 300 Blower Oldest 2.1 series, still bus-compatible. 
Error code What it means
F218 Heatsink over-temperature shutdown
F219 Motor over-temperature (thermistor ≈ 155 °C)
F220 Bleeder-resistor over-temperature
F226 DC-bus undervoltage while enabled
F228 Excessive deviation (following-error)
F229 Encoder 1 failure – quadrant error
F230 Max. signal frequency of encoder 1 exceeded
F233 External power-supply error (+24 V / ±15 V control rail)
F234 Emergency-Stop activated (+24 V to E-Stop input lost)
F236 Excessive position-feedback difference (encoders 1 & 2)

Frequently Asked Questions about KDA3.2-100-3-A00:

Q: How does the cooling system benefit the KDA3.2-100-3-A00 spindle drive?

A: The integrated blower and heatsink cooling in the KDA3.2-100-3-A00 prevents overheating during extended operations, ensuring long-term reliability.

Q: Why does the KDA3.2-100-3-A00 operate at 50-60 Hz?

A: The 50-60 Hz frequency range in the KDA3.2-100-3-A00 ensures compatibility with industrial standards, providing stable motor performance across various systems.

Q: What is the purpose of the analog input in the KDA3.2-100-3-A00?

A: The +/-10V analog input in the KDA3.2-100-3-A00 allows precise speed control, ensuring smooth motor operations in dynamic tasks.

Q: Why does the KDA3.2-100-3-A00 lack auxiliary encoder input?

A: The KDA3.2-100-3-A00 focuses on core functionalities like high-performance torque and stiffness, which eliminates the need for additional encoder inputs.

Q: How does IP10 protection enhance KDA3.2-100-3-A00 performance?

A: The IP10 protection of the KDA3.2-100-3-A00 safeguards against large solid particles, making it suitable for controlled environments without risk of internal damage.


Internal Product Review

  • ‘‘The KDA3.2-100-3-A00 spindle drive by Rexroth Indramat is a robust choice for industrial applications requiring precise spindle motor control. Its 70 A continuous current capability, integrated blower cooling, and high stiffness positioning make it ideal for automation tasks that demand reliability and efficiency.’’

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