KDA 3.1-100-3-A0D-U1

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The KDA 3.1-100-3-A0D-U1 is an air-cooled drive controller with a rated continuous current of 100 A. This Bosch Rexroth Indramat product, part of the KDA Spindle Drives series, operates on a 3-phase 380-480 V AC power supply at 50/60 Hz. It supports encoder and resolver feedback and weighs approximately 23 kg.

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Product Description:

Bosch Rexroth Indramat produced the KDA 3.1-100-3-A0D-U1 Spindle Drive for various industrial automation services. It operates with a rated current of 100 A. The drive receives a 220 V AC input to operate the heatsink fan. It features a bus voltage of 300 V DC for optimal performance.

The KDA 3.1-100-3-A0D-U1 spindle drive is equipped with active air cooling and a heatsink fan. This keeps the drive's components at optimal temperatures during operation. The spindle drive supports operation at altitudes reaching up to 1000 meters above sea level. It is designed to function in environments with a permissible non-condensing humidity of up to 95 percent. The drive meets industrial vibration and shock standards for reliable performance. The KDA 3.1-100-3-A0D-U1 spindle drive is equipped with an analog speed command input of ±10 V. This drive is designed without additional interface or encoder input capability. The product belongs to the KDA Spindle Drives product line of Bosch Rexroth. Its design type is Design 1, which is optimized for standard environments. This allows the drive to function in a variety of industrial settings. The environmental resistance of the drive ensures durability in tough conditions. The drive tolerates industrial vibration and shock without loss of performance.

The KDA 3.1-100-3-A0D-U1 is designed for applications where dependable performance is critical. It operates efficiently under varying environmental conditions, including high humidity and vibrations. The spindle drive maintains stable performance with the provided forced air cooling capability. Its rated current of 100 A ensures that it meets the power demands of industrial machines. The operating ambient temperature range is between 0°C and 40°C for this drive. Its ability to perform at different altitudes makes it versatile for global use.

Cooling
Air-cooled
Encoder Feedback
Supports encoder and resolver
Fieldbus Interface
Standard (none integrated)
Number Of Axes
1
Operating Temperature
0°C to +45°C
Power Supply Voltage
3-phase 380-480 V AC
Protection Rating
IP 10
Rated Continuous Current
100 A
Rated Frequency
50/60 Hz
Type
Drive Controller
Weight
Approx. 23 kg
  • KDA 311003A0DU1

Frequently Asked Questions about KDA 3.1-100-3-A0D-U1:

Q: What makes KDA 3.1-100-3-A0D-U1 spindle drive suitable for global deployment?

A: The KDA 3.1-100-3-A0D-U1 spindle drive handles up to 95% non-condensing humidity. This capability supports consistent functionality in diverse and humid industrial settings.

Q: How does Bosch Rexroth Indramat ensure durability in KDA 3.1-100-3-A0D-U1 spindle drive?

A: Bosch Rexroth Indramat equips the KDA 3.1-100-3-A0D-U1 spindle drive with Design 1 architecture. This layout provides structural robustness for high-reliability automation systems.

Q: What power handling capability defines KDA 3.1-100-3-A0D-U1 spindle drive?

A: The KDA 3.1-100-3-A0D-U1 spindle drive delivers 100 A rated current. This enables high-performance spindle motor operation under continuous and transient load conditions.

Q: What are encoder integration limits for KDA 3.1-100-3-A0D-U1 spindle drive?

A: The KDA 3.1-100-3-A0D-U1 spindle drive lacks an auxiliary encoder input. Systems using it must rely on internal speed loop regulation rather than external feedback.

Q: How does ambient temperature range impact KDA 3.1-100-3-A0D-U1 spindle drive?

A: The KDA 3.1-100-3-A0D-U1 spindle drive operates between 0°C and 40°C. Staying within this range ensures safe operation without stressing internal thermal protection circuits.


Internal Product Review

  • ‘‘The KDA 3.1-100-3-A0D-U1 from Bosch Rexroth Indramat is a rugged spindle drive crafted for industrial automation environments. It features a 100 A rated current, analog ±10 V speed command, and forced-air cooling via 220 VAC blower. It excels in high-precision CNC machining, especially C-axis spindle positioning in multi-axis milling systems.’’

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