KDA 3.1-150-3-AQD-W1
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The KDA 3.1-150-3-AQD-W1 actuator features a stroke length of 150 mm, an integrated AC servo motor, ball screw mechanics, and IP65 protection. Part of the KDA Spindle Drives series by Bosch Rexroth Indramat, it includes flange and foot mounting with fieldbus-ready control and an absolute encoder for reliable feedback.
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Product Description:
The main spindle drive from the KDA Spindle Drives family is the KDA 3.1-150-3-AQD-W1 drive. It is made to precisely manage 1MB frameless spindle motors and 2AD asynchronous motors. In machine tool applications, this unit provides dependable operation and great performance.
The KDA 3.1-150-3-AQD-W1 runs on a 300 V DC bus voltage and has a rated current of 150 A and a continuous current of 90 A. The device includes an analog ±10 V speed command input, a 1 Vpp sinusoidal auxiliary encoder input, and a digital position command value at 16-bit parallel output. The integrated microcomputer manages digital control, monitoring, and diagnostics. Speed control spans from 0.0005 rpm to maximum motor speed, allowing for high-resolution C-axis operation. Forced cooling is provided by a 220 V AC heatsink blower. Air flow is 32 l/s, peak pressure is 30 Pa, and the highest air velocity at the heatsink is 3-4 m/s. Heat dissipation is primarily external for effective thermal control. The unit is IP 10 rated, making it ideal for dry industrial situations. Dimensions are 373 mm tall, 160 mm wide without the air duct, 185 mm wide with the air duct, and roughly 355 mm deep. Weight is 17.4 kg, plus 1.7 kg for the mechanical mounting kit and 4.2 kg for the blower unit. Mounting is vertical, with grounding bolts on top. In humid environment, humidity tolerance can reach 70% RH without condensation.
The Bosch KDA 3.1-150-3-AQD-W1 spindle drive features an NC control interface, feedback interface, auxiliary encoder and auxiliary interface for versatile connectivity. It has nominal performance between +5 °C and +45 °C, with peak operation up to +55 °C and storage from -30 °C to +85 °C. It has an installation altitude of up to 1000 m. Parameters can be configured using an integrated keypad and display. The design incorporates multi-range parameter blocks for various gear levels. Its digital control system adjusts to various machine requirements, delivering precise spindle alignment and dependable performance.
Frequently Asked Questions about KDA 3.1-150-3-AQD-W1:
Q: How does the analog ±10 V speed command benefit the KDA 3.1-150-3-AQD-W1?
A: It allows precise analog control of spindle speed over the full range. This ensures smooth response in CNC and automation applications.
Q: Why is the auxiliary encoder input important in the KDA 3.1-150-3-AQD-W1?
A: It enables additional position or spindle feedback for improved accuracy. This supports high-resolution machining and positioning functions.
Q: How does the digital 16-bit parallel position command help in performance?
A: It allows exact digital positioning commands for fast data transfer. This ensures the spindle drive reacts instantly to control signals.
Q: Why is a peak pressure of 30 Pa relevant for the heatsink blower?
A: It ensures adequate air movement through the heatsink channels. This keeps the drive cool even at higher continuous loads.
Q: How does the microcomputer-based control in the KDA 3.1-150-3-AQD-W1 enhance operation?
A: It processes drive monitoring, diagnostics, and control with high accuracy. This leads to stable speed regulation and fault detection.
