KDA 3.1-150-3-A0D-U1
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The Bosch Rexroth Indramat KDA 3.1-150-3-A0D-U1 belongs to the KDA Spindle Drives series and operates on 3-phase 380-480V AC with ±10% tolerance. This air-cooled servo drive provides a continuous output current of 150A and supports both analog and digital command interfaces.
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Product Description:
The Bosch’s control drive KDA 3.1-150-3-A0D-U1 is built for high-precision control in industrial machinery. It is capable of high-resolution speed control with a range from 0.0005 rpm to maximum operational speeds to allow accurate spindle positioning and reliable C-axis operation.
The KDA 3.1-150-3-A0D-U1 drive possess a peak current output capacity of 150.0 A and 90.0 A of continuous current. It ensures reliable power delivery to connected motors through its 300 V DC bus voltage rating. The drive features multiple speed command inputs, including analog ±10V and digital 16-bit parallel interface. It integrates motor and spindle feedback for internal position control with a resolution of up to 1/2000000th of a revolution for precise machining capabilities. This KDA drive has an integrated 115 VAC operating heatsink mounted fan blower for thermal management to maintain performance in various industrial environments. It comes housed in a durable enclosure with IP10 protection against objects larger than 5.0 cm that makes it suitable for installation in industrial control cabinets and it supports installation at heights up to 1000 m above sea level with up to 70% relative humidity without condensation. The unit includes relay terminal connections for NTC sensor monitoring to avoid thermal stress built up, which reduces motor life span.
The KDA 3.1-150-3-A0D-U1 drive has several ports for various functions that includes motor feedback, optional auxiliary encoder input and digital position command. It offers diagnostic ports for monitoring and adjusting operational parameters. With a total weight of 17.4 kg, the drive is compact yet powerful and its mechanical mounting kit weighs 1.7 kg that makes installation straightforward in the supported vertical position. This unit features 15 V measurement voltage (UM) with 160 mA current usage and 24 VDC load control voltage (UL) with 1.6 mA.
Frequently Asked Questions about KDA 3.1-150-3-A0D-U1:
Q: Why does the Bosch KDA 3.1-150-3-A0D-U1 offer both ±10 V analog and 16-bit digital inputs?
A: Its dual input types ensure compatibility with legacy analog systems and modern high-resolution digital controls. This flexibility simplifies integration across varied industrial setups.
Q: How does the active heatsink fan in the KDA 3.1-150-3-A0D-U1 extend performance longevity?
A: The integrated 115 VAC fan constantly dissipates heat from the heatsink under load. Maintaining optimal operating temperature reduces thermal stress and avoids performance degradation.
Q: What benefit does the 1/2 000 000 revolution resolution provide in the Bosch KDA 3.1-150-3-A0D-U1?
A: Its extremely fine resolution enables sub-micron spindle positioning accuracy. This is vital for high-precision tasks like micro-machining or advanced surface finishing.
Q: How does the Bosch KDA 3.1-150-3-A0D-U1 handle operation at altitudes up to 1000 m and 70 % humidity?
A: It’s rated for performance in those specific environmental conditions to avoid condensation and ensure reliable electronic operation. Built-in thermal and environmental tolerances maintain uptime without extra enclosures.
Q: What is the purpose of the relay terminal with NTC monitoring in the KDA 3.1-150-3-A0D-U1?
A: It allows connection of an NTC sensor to detect thermal buildup in motors. Early warning via the relay helps prevent overheating and extends motor life.
