KDA 3.1-150-3-LQ0-W1 Bosch Rexroth Indramat
Wake Industrial LLC is not an authorized distributor of this product.
Wake Industrial LLC is not an authorized distributor of this product.
The Bosch Rexroth Indramat KDA 3.1-150-3-LQ0-W1 is a spindle drive from the KDA Spindle Drives series, offering a rated current of 150 Amps and operating on a 300 VDC supply voltage. It features forced cooling with a mounted heatsink blower powered by a 220V AC source and supports speed command input via a SERCOS interface. The drive is designed for ambient temperatures between 5 and 45 degrees Celsius and can be installed up to 1000 meters above sea level.
Internal Product Review
The KDA 3.1-150-3-LQ0-W1 spindle drive from Bosch Rexroth Indramat delivers impressive performance with a rated current of 150 A and a DC supply voltage of 300 VDC. Its forced cooling system with a mounted heatsink blower ensures reliable operation within ambient temperatures of 5 to 45°C. Designed for demanding spindle applications, this drive stands out for its efficient cooling and high current capacity.
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Product Description:
The KDA 3.1-150-3-LQ0-W1 is a spindle drive module from the KDA Spindle Drives series produced by Bosch Rexroth Indramat. As a drive controller, it regulates the current and voltage sent to asynchronous or synchronous spindle motors, providing speed and torque control for machine tool spindles and other high-speed rotating assemblies in automated production lines. This type of control helps the spindle respond accurately during acceleration, steady cutting, and deceleration. It is intended for use in drive systems where spindle speed must remain stable as load conditions change. Hardware release level 3 identifies the electrical revision used in this unit and matches it with compatible power supplies and feedback networks in modular control cabinets.
The drive draws control energy from a DC link rated at 300 VDC and delivers up to 150 A of continuous current to the connected motor during demanding cutting or drilling cycles. Internal losses are removed by a mounted heat sink blower that uses a separate supply of 220 V at 50/60 Hz. The blower moves air directly across the cooling fins, and the design relies on forced cooling to keep semiconductor temperatures within safe operating limits during sustained high-speed use. An internal control path converts external speed references into precise phase currents, while the electronics support diagnostic messaging and parameter storage in nonvolatile memory.
Integration in the control system is handled through the SERCOS interface, and the LQ0 configuration does not include an additional interface option. The unit can be installed at elevations up to 1000 m above sea level and operates in ambient temperatures from 5 °C to 45 °C without derating when airflow around the heat sink exhaust remains unobstructed. These operating limits apply when the cooling path is kept clear so exhaust air can leave the module without restriction. Stable airflow is necessary to support normal thermal behavior during extended spindle operation.
