KDA 2.1-100-3-LPI-U1
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The KDA 2.1-100-3-LPI-U1 spindle drive delivers a rated current of 100 amps, supports 3 axes, utilizes liquid cooling (LPI) with a flow rate of 2.5 l/min per axis, and includes a digital encoder interface. From the KDA Spindle Drives series by Bosch Rexroth Indramat, it features IP20 protection and operates at an input voltage of 3 x 400 V AC.
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Product Description:
The KDA 2.1-100-3-LPI-U1 is a motor control drive from Rexroth that has a rated continuous current capacity of 100 A. It provides adjustable parameter settings for gain/current limits and shows compatibility with a wide range of motors. The unit has a compact design with a vertical mounting layout and its physical dimensions are 445 mm x 110 mm x 287 mm.
The KDA 2.1-100-3-LPI-U1 drive includes an integrated braking resistor for energy dissipation and it features forced-air cooling using a 115 VAC blower that is mounted with a heatsink. It receives power through a shared DC bus link via a KDV power supply module and it requires a DC bus voltage of 300 VDC. The drive supports continuous operation at ambient temperatures up to 318.15 K and supports installation inside control cabinets due to its IP10 rating. It accepts SERCOS interface for speed command control and its digital interface ensures noise-free data transmission for feedback. The KDA 2.1-100-3-LPI-U1 drive incorporates an auxiliary encoder input for additional feedback integration and its encoder input supports 1 Vpp sinusoidal signals for high-resolution feedback. It also offers an incremental encoder output for external controller use and it can simulate encoder signals for CNC position control. The unit integrates seamlessly into multi-axis systems and it can share the DC bus with other Indramat drive modules as well. It includes status LEDs along with 7-segment display on the front panel for diagnostics, operating status and error codes.
The KDA 2.1-100-3-LPI-U1 drive features protection against overcurrent, overvoltage and thermal faults. It stores configuration data in a removable programming module that holds motor settings and firmware-specific parameters. This KDA spindle drive supports automatic speed regulation with closed-loop feedback and it uses vector control for precise spindle speed regulation.
Frequently Asked Questions about KDA 2.1-100-3-LPI-U1:
Q: How does the integrated braking resistor in the KDA 2.1-100-3-LPI-U1 improve motor control?
A: The braking resistor dissipates excess energy during deceleration, preventing voltage spikes. This protects the drive and ensures smoother stopping performance.
Q: Why is forced-air cooling necessary in the KDA 2.1-100-3-LPI-U1 drive?
A: Forced-air cooling with a 115 VAC blower prevents overheating under continuous operation. It enhances reliability and extends component life in compact enclosures.
Q: How does the SERCOS interface benefit the KDA 2.1-100-3-LPI-U1 drive’s communication?
A: The SERCOS provides a noise-immune digital interface for real-time speed command control. This ensures precise and stable motor performance in harsh industrial environments.
Q: What advantages does the 1 Vpp sinusoidal encoder input provide in the KDA 2.1-100-3-LPI-U1?
A: The sinusoidal signals allow high-resolution feedback, improving motor position accuracy. This is crucial for applications requiring fine spindle speed control.
Q: Why does the KDA 2.1-100-3-LPI-U1 include a removable programming module?
A: The removable module stores motor and firmware settings for quick replacement or duplication. This simplifies maintenance and reduces downtime.
