KDA 3.1-100-3-DYD-W1
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The Bosch Rexroth Indramat KDA 3.1-100-3-DYD-W1 is part of the KDA Spindle Drives series and functions as a frequency inverter/drive controller. It operates with a current rating of 100 Amps, utilizes internal fan cooling, and supports optional fieldbus interfaces like Profibus and SERCOS. It weighs approximately 20 kg.
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Product Description:
The KDA 3.1-100-3-DYD-W1 Spindle Drive is designed and manufactured by Bosch Rexroth Indramat with a drive weight of 17.1 kg for robust integration. This drive is also assigned humidity class F according to DIN 40 040, verifying its ability to withstand conditions with increased moisture.
The thermal cooling mechanism of the KDA 3.1-100-3-DYD-W1 spindle drive is based on a fan cooling principle that guarantees steady thermal control. This spindle drive has a blower working voltage of 220V, with constant air flow to enhance its power handling capability. With this design, this drive is rated for an ambient temperature of +55 °C, enabling it to function continuously under typical high-demand thermal conditions. Its integration with the system is also facilitated through the NC interface with X2 connecting clamps. It is designed with a 37-pin configuration that provides a secure and efficient electrical connection. In addition to this drive’s weight, a separate mechanical mounting accessory also contributes 1.7 kilograms, intended to enhance equipment stability and accurate installation alignment. This drive’s electrical system is rated to handle a nominal current capability of 100 amperes to support high short-term power demands during acceleration modes.
For continuous operation, the KDA 3.1-100-3-DYD-W1 spindle drive can sustain a rated continuous current of 70 A while maintaining thermal equilibrium. The mounting orientation of this drive is allowed in a vertical position. Its grounding bolts are precisely located on the top surface to facilitate correct alignment and grounding safety in equipment systems. For velocity regulation, this drive accepts a digital velocity command input in a 16-bit parallel configuration that increases resolution and accuracy for spindle control. For increased feedback, this drive provides auxiliary encoder inputs in synchronous and auxiliary signal options to ensure flexible compatibility with varying control structures.
Frequently Asked Questions about KDA 3.1-100-3-DYD-W1:
Q: Why does the KDA 3.1-100-3-DYD-W1 include auxiliary and synchronous encoder inputs?
A: They enable advanced feedback loops for improved motion accuracy. This design ensures reliable positioning in multi-axis machining environments.
Q: How does the 37-pin NC interface improve connectivity in this spindle drive?
A: The interface standardizes controller integration and minimizes wiring errors. It also supports stable, high-frequency signal transmission.
Q: What is the benefit of having grounding bolts on the top in KDA 3.1-100-3-DYD-W1?
A: This placement ensures quick installation without compromising electrical safety. It also helps maintain proper chassis grounding in vertical setups.
Q: Why is a digital 16-bit parallel velocity input essential in this spindle drive?
A: It provides high-resolution commands for spindle speed changes. This leads to smoother transitions during cutting cycles.
Q: How does the mechanical mounting accessory assist KDA 3.1-100-3-DYD-W1 operation?
A: It minimizes vibrational stress on drive components. The accessory also secures the unit against shifting during spindle acceleration.
