KDA 2.1-150-3-A0I-W1
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The KDA 2.1-150-3-A0I-W1 spindle drive features a rated continuous current of 150 A, fan cooling options (internal/external), IP20 protection, and a PWM control type. Part of the KDA Spindle Drives series by Bosch Rexroth Indramat, it operates on 3 x 220-230 V AC input voltage and weighs approximately 17 kilograms.
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Product Description:
The KDA 2.1-150-3-A0I-W1 is a spindle drive module. The unit allows for regulated spindle operation in CNC systems. It is part of the KDA Spindle Drives series. It is intended for high-efficiency operation in industrial settings.
The KDA 2.1-150-3-A0I-W1 has a maximum continuous current of 150 A. It can deliver a peak current of up to 225 A. The DC bus voltage for this unit remains at 300 V DC. The continuous power usage via the DC bus is 45 kW. This type permits a maximum power loss of 2.5 kW. It produces an output voltage of 3 x 215 V. The drive uses a pulse frequency of 8 kHz. This model is manufactured by Bosch Rexroth Indramat. It keeps the current control accuracy within ±2% of the complete scale. The input power supply must be three-phase AC at 50 to 60 Hz. It connects to a DC bus using TVM or TME modules. The unit's overall weight is about 17 kg. It is cooled by a water-based system rated at W1. The cooling water flow rate must be roughly 3 liters per minute. The water pressure should be between 1.5 and 6 bars. The allowed water temperature ranges from 15 °C to 35 °C. If the temperature rises above 45 °C, the output is reduced. The unit is non-condensing and can operate in humidity levels of up to 75 percent. It has an IP10 protection class which makes it suited for enclosed installations. The altitude for proper performance must not exceed 1000 meters. The drive has internal closed-loop current control. It accepts encoder or position feedback via external modules.
The Bosch KDA 2.1-150-3-A0I-W1 is designed for precision CNC applications. The cooling surface temperature should not exceed 70 °C. This type must be vertically installed within a sealed cabinet. It attaches securely to the control cabinet backplate via screw mounting. It meets the EN 50178 standard for shock and vibration resistance. The allowable ambient operating temperature varies from 5 °C to 45 °C. This module offers both analog ±10V and digital command interfaces. It provides effective motor control.
Frequently Asked Questions about KDA 2.1-150-3-A0I-W1:
Q: How does the pulse frequency of 8 kHz affect drive performance?
A: The 8 kHz pulse frequency improves response time and control accuracy. It reduces torque ripple and enhances dynamic behavior.
Q: Why does KDA 2.1-150-3-A0I-W1 require a water-cooled system (W1)?
A: Water cooling ensures heat dissipation in high-duty cycles or tight enclosures. It maintains optimal performance without relying on cabinet airflow.
Q: How does the encoder feedback improve operation in KDA 2.1-150-3-A0I-W1?
A: Encoder feedback allows high-resolution position tracking for spindle control. It enables precise synchronization with machine operations.
Q: How does Bosch Rexroth Indramat ensure safety in KDA 2.1-150-3-A0I-W1?
A: The IP10 protection level and EN 50178 compliance ensure operator and device safety. Grounding and shielded wiring are also required.
Q: What is the significance of 3 x 215 V output in KDA 2.1-150-3-A0I-W1?
A: It delivers balanced three-phase voltage ideal for spindle motors. This supports smooth and reliable motor acceleration.
