KDA 3.1-050-3-DQI-W1
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The KDA 3.1-050-3-DQI-W1 is a spindle drive with an internal blower air cooling method and IP20 protection class. Manufactured by Bosch Rexroth Indramat as part of the KDA Spindle Drives series, it operates on 3 x 220-480 V AC input voltage with a frequency of 50/60 Hz. It supports SERCOS/Analog communication.
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Product Description:
Bosch Rexroth is a global manufacturer of industrial automation and drive solutions. The company delivers innovative products for precise motion control, efficient energy usage and reliable industrial applications. Its solutions support manufacturing, assembly and machining processes across diverse industries worldwide.
The KDA 3.1-050-3-DQI-W1 Main Spindle Drive is designed for intelligent digital control of asynchronous and frameless spindle motors. The drive supports continuous motor output within a broad power range. The high stiffness and positioning accuracy allow precise spindle performance. The integrated microcomputer executes digital drive control, diagnostic functions and continuous rotor position monitoring. A high resolution encoder ensures accurate position detection across all speeds. The drive provides reliable C axis operation with resolution up to 1/360,000 revolution. It achieves stable spindle positioning and precise low speed control down to 0.0005 rpm. The internal position control is enabled via high resolution motor feedback. It supports additional external spindle feedback when required. The rated current of the drive is 50 A. It consumes ±15 V measuring voltage with 160 mA consumption. A mechanical mounting kit (M1-KD) is supplied that weighs 1.7 kg. The protection category of the drive is IP 10. The auxiliary encoder input supports 1 V sinusoidal encoder signals. This spindle drive ensures reliable speed and position control in demanding conditions.
The permissible maximum ambient temperature of the KDA 3.1-050-3-DQI-W1 main spindle drive under reduced data conditions is + 55 °C. For storage and transport, the drive withstands a temperature range of – 30 °C to + 85 °C. An AC supply of 220 V at 50 – 60 Hz powers the heatsink blower. These specifications make the drive suitable for machine tools requiring stable spindle performance.
Frequently Asked Questions about KDA 3.1-050-3-DQI-W1:
Q: What role does the encoder resolution play in the KDA 3.1-050-3-DQI-W1 drive’s C-axis capability?
A: It achieves up to 1/360,000 revolution resolution for C-axis tasks. This supports precise indexing and accurate angular positioning in complex machining applications.
Q: How does the KDA 3.1-050-3-DQI-W1 main spindle drive maintain ultra-precise spindle control at low speeds?
A: It uses high-resolution encoder feedback for internal position control down to 0.0005 rpm. This ensures stable C-axis performance during slow rotation and complex contouring operations.
Q: How does the KDA 3.1-050-3-DQI-W1 main spindle drive manage rotor position in digitally controlled systems?
A: An integrated microcomputer monitors rotor position continuously. It also handles drive control and diagnostics, ensuring efficient closed-loop operation under varying speeds and loads.
Q: How can users implement external feedback with the KDA 3.1-050-3-DQI-W1 main spindle drive?
A: It supports auxiliary encoder input with 1 V sinusoidal signals. This allows flexible feedback integration for advanced motor control and redundancy.
Q: How does the KDA 3.1-050-3-DQI-W1 main spindle drive maintain operational integrity in high-temperature environments?
A: It operates safely up to +55 °C under reduced load conditions. This extends usability in warm ambient zones without compromising system accuracy.
