KDA 2.1-150-3-LPD-U1

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The Bosch Rexroth Indramat KDA 2.1-150-3-LPD-U1 spindle drive is a part of the KDA Spindle Drives series and supports a resolver/incremental encoder feedback system. It offers a rated continuous output current of 150 Amps and operates with 3-phase 230/400V AC voltage. This device weighs around 16 kg and features IP20 protection.

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Product Description:

The KDA 2.1-150-3-LPD-U1 Main Spindle Drive enables high precision spindle control by utilizing a parallel interface which ensures deterministic communication for real-time position referencing.

The KDA 2.1-150-3-LPD-U1 main spindle drive from Bosch Rexroth operates with a 300 V DC bus voltage. It delivers a continuous current of 90 A that ensures consistent output during long operating cycles. The drive uses forced cooling through a heatsink blower to maintain safe operating temperatures. The blower is powered by an AC supply of 115 V at 50 – 60 Hz that is suitable for global applications. The interface for position command values is digital using a 16 bit parallel configuration. This allows fast and accurate command processing. The current consumption for ± 15 V measuring voltage is 160 mA. This drive has a rated current of 150 A and is designed for integration into automated spindle systems that require stable high current performance. Its electrical efficiency and thermal stability make it ideal for applications with prolonged duty cycles. The construction supports easy installation into existing systems with minimal setup. The protection systems are typically integrated to manage overloads and temperature thresholds. It can withstand storage and transport temperatures from -30 °C to +85 °C. This makes the unit suitable for long term storage and shipping in varied environmental conditions.

The KDA 2.1-150-3-LPD-U1 main spindle drive supports high quality C axis operations with resolution precision reaching ≤ 1/360,000 revolutions. This ensures optimal positioning and synchronization especially critical for machining and automated production systems. The high resolution motor and spindle feedback further reinforce internal accuracy in speed and position regulation. The cooling system ensures reliable heat dissipation even during high current draw.

Communication Interface
Analog, TTL
Cooling Method
Forced Air (internal fan)
Dimensions (h X W X D)
Approx. 445 mm x 150 mm x 210 mm
Feedback System
Resolver/Incremental Encoder
Mounting
Panel mounting
Operating Temperature
0°C to +45°C
Peak Output Current
180 A
Power Supply Voltage
3-phase 230V/400V AC
Protection Class
IP 20
Rated Continuous Output Current
150 A
Rated Power
Depends on motor, up to 50 kW with suitable cooling
Weight
Approx. 16 kg
  • KDA 211503LPDU1

Frequently Asked Questions about KDA 2.1-150-3-LPD-U1:

Q: Does the KDA 2.1-150-3-LPD-U1 support high-resolution C axis positioning for synchronized operations?

A: Yes, the KDA 2.1-150-3-LPD-U1 spindle drive supports precise C axis functions with resolution reaching ≤ 1/360,000 revolutions. This ensures accurate synchronization in machining and automated production systems.

Q: Can the KDA 2.1-150-3-LPD-U1 handle long duty cycles without performance drop?

A: The drive delivers a rated current of 150 A with a continuous current of 90 A for stable, consistent output. This makes it highly reliable in prolonged and demanding industrial operations.

Q: How does the KDA 2.1-150-3-LPD-U1 maintain thermal stability under high loads?

A: It uses forced cooling via a heatsink blower to manage internal temperatures during high current draw. The blower runs on a 115 V AC input at 50–60 Hz for global use.

Q: What kind of command interface does the KDA 2.1-150-3-LPD-U1 use for spindle control?

A: This model uses a digital 16-bit parallel interface for position commands. It processes input values quickly, ensuring precise and responsive spindle control across applications.

Q: Can the KDA 2.1-150-3-LPD-U1 withstand harsh storage or shipping conditions?

A: Yes, it is built for rugged environments with storage and transport tolerance from -30 °C to +85 °C. This protects the unit during long-distance shipping or warehouse storage.


Internal Product Review

  • ‘‘The KDA 2.1-150-3-LPD-U1 is a high-performance main spindle drive from Bosch Rexroth. It features 150 A rated current, forced cooling, and 16-bit parallel position control. It excels in demanding machining applications requiring tight synchronization and accuracy with precision resolution reaching ≤ 1/360,000 revolutions.’’

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