KDA 2.1-150-3-L0I-W1
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The KDA 2.1-150-3-L0I-W1 is an air-cooled spindle drive with a rated current of 150 Amps and dimensions of 475 x 395 x 220 mm. Manufactured by Bosch Rexroth Indramat as part of their KDA Spindle Drives series, it features an input voltage of 3-phase 400/480 V AC. The drive weighs 42 kg and supports panel mounting.
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Product Description:
The Indramat’s spindle drive KDA 2.1-150-3-L0I-W1 is designed to handle a peak output load of 150 A and 90 A in continuous operating mode. It requires DC bus voltage of 300 V and it shows compatibility with 2AD as well as 1 MB servo motors. This drive supports panel mounting configuration inside a cabinet due to its IP10 protection class and it requires vertical clearance for airflow.
The KDA 2.1-150-3-L0I-W1 drive has an integrated 220 V AC forced-air cooling system that is mounted through an external heatsink to maintain ambient operating temperature during under load conditions. It supports spindle motors rated around 20 to 22 kW and handles motor feedback through a 15-pin X3 connector. The KDA 2.1 motor drive supports high-resolution encoder and analog tachometer signals for providing feedback, while it does not include an auxiliary encoder input option. It features a digital SERCOS interface for speed commands to allow precise and reliable velocity control. This unit processes command signals over a fiber-optic link and its internal control loop handle torque as well as velocity regulation. It includes an incremental encoder output interface that enables simulated A/B/Z signals for the CNC control. The KDA 2.1 drive’s output provides position data for functions like spindle orientation and its output resolution is configurable via drive parameters setting.
The KDA 2.1-150-3-L0I-W1 control drive is presented with an RS-232C port for parameter loading and diagnostics. Its overall dimensions are 400 mm × 150 mm × 480 mm and it operates within 41°F to 113°F of ambient temperature without derating, while it can be stored between -22°F to 185°F. This drive can tolerate relative humidity up to 75% in a non-moist environment.
Frequently Asked Questions about KDA 2.1-150-3-L0I-W1:
Q: How does the SERCOS interface benefit the KDA 2.1-150-3-L0I-W1 drive?
A: The SERCOS interface enables precise and real-time velocity control via fiber optics. It also minimizes electrical noise in noisy industrial environments.
Q: Why is a 15-pin X3 connector used for motor feedback in KDA 2.1-150-3-L0I-W1?
A: It allows transmission of high-resolution encoder and analog tachometer signals. This supports accurate torque and speed control under dynamic conditions.
Q: Why does the KDA 2.1-150-3-L0I-W1 require vertical clearance for airflow?
A: Vertical clearance ensures proper air circulation for its forced-air cooling system. This helps prevent overheating, especially during high-load operation.
Q: How does the external heatsink contribute to the performance of KDA 2.1-150-3-L0I-W1?
A: The heatsink dissipates excess heat generated during continuous operation. It maintains stable drive performance even at full motor loads.
Q: How does the drive support torque and velocity regulation simultaneously?
A: The internal control loop is designed to independently manage torque and velocity. This dual control enhances motion precision in spindle applications.
