KDA 3.1-050-3-DP0-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 3.1-050-3-DP0-W1 is a spindle drive from the KDA Spindle Drives series, designed for use with a mounted heatsink blower and forced cooling. It operates with a rated current of 50 Amps and accepts a DC supply voltage of 300 VDC. The drive supports digital 16-bit parallel speed command values and is suitable for ambient temperatures between 5 to 45 degrees Celsius.
Internal Product Review
The KDA 3.1-050-3-DP0-W1 spindle drive from Bosch Rexroth Indramat delivers reliable performance with a 50 A rated current and a 300 VDC supply voltage. Its forced cooling system uses a mounted heatsink blower powered by a 220V/50-60Hz AC source, ensuring consistent operation within 5 to 45 degrees Celsius. This model stands out for its digital 16-bit parallel speed command and spindle feedback versatility, making it a dependable choice for demanding spindle applications.
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Product Description:
The KDA 3.1-050-3-DP0-W1 spindle drive is built by Bosch Rexroth Indramat for the KDA Spindle Drives series. The module serves as the main power converter between a constant DC bus and the three-phase windings of a machine-tool spindle, issuing torque commands while monitoring encoder feedback to keep rotational error low. By integrating speed regulation with internal thermal supervision, the unit supports precision milling, drilling, and grinding tasks that require reliable closed-loop control, repeatable speed holding, and steady torque delivery within a moderate power envelope. The control structure is suited to spindle applications that need stable speed during cutting passes.
The power section operates from a nominal 300 VDC link and is rated for a continuous output of 50 A, so the DC bus and protective devices must support sustained spindle demand. A dedicated heatsink blower is supplied from an auxiliary line of 220 V/50-60 Hz, which keeps the cooling circuit separate from the control bus and allows airflow to continue independently of the DC link. The drive is specified to function in ambient temperatures from 5 to 45 °C, and installation is permitted up to 1000 m above sea level. Within that range, cabinet airflow and spacing must still support stable heat removal during continuous operation.
The thermal design relies on forced cooling through a mounted heat sink blower, so the internal IGBTs stay below junction limits during rapid spindle acceleration and deceleration. Speed commands are handled through a 16-bit digital parallel interface, which provides direct command transfer to the control stage without a fieldbus layer. A second encoder socket is available for spindle feedback or additional motor feedback, so the control loop can receive position data without external splitters. The electronics shelf is produced as Series 3 hardware and has no additional interface option, so only fieldbus-independent digital inputs are present.
