KDA 3.2-100-3-LPS-W1 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat KDA 3.2-100-3-LPS-W1 is a spindle drive from the KDA Spindle Drives series, featuring a rated current of 100 Amps and a DC supply voltage of 300 Volts. It utilizes forced cooling with a mounted heatsink blower and is equipped with a SERCOS interface for speed command value and a serial interface for additional connectivity. Suitable for environments from 5 to 45 degrees Celsius, it supports installation up to 1000 meters above sea level.
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Product Description:
The KDA 3.2-100-3-LPS-W1 is a spindle drive module produced by Bosch Rexroth Indramat and assigned to the KDA Spindle Drives series. Designed for high-speed machining centers, the unit converts a regulated DC bus into three-phase output for induction or synchronous spindles while supporting the speed and torque control required for milling, drilling, and contouring operations. Real-time feedback channels let the CNC monitor spindle behavior during acceleration, cutting, and deceleration. The module is intended for cabinet-mounted drive systems where the spindle axis must respond quickly to commanded speed changes and maintain stable rotation during load variations. Its series code 3 and version 2 identify the product generation within the modular drive family.
Internal power electronics are supplied from a regulated bus of 300 VDC, so the drive must be paired with a compatible supply unit in the same cabinet. Under continuous operation, it can deliver up to 100 A of motor phase current, supporting large spindle motors during acceleration and cutting load changes. Thermal energy is removed by an integral heat sink blower, and the blower operates from a 220 V/50-60 Hz auxiliary line to provide forced cooling. This airflow helps stabilize power semiconductor temperature during extended spindle duty and repeated speed changes. Because the cooling air is generated at the module, the drive does not rely only on passive cabinet airflow to remove switching losses.
The drive is intended for environments from 5 to 45 °C and for installation sites up to 1000 m above sea level, which suits most indoor industrial locations. Control data such as speed setpoints are exchanged over the SERCOS interface, while parameter access and service diagnostics are available through a serial interface (RS-232 C). A second encoder input is available, so the system can use separate spindle feedback or additional motor feedback without external modules. The additional feedback path is useful where spindle orientation, rigid tapping, or separate motor monitoring is required by the machine control.
Frequently Asked Questions about KDA 3.2-100-3-LPS-W1:
Q: What is the DC supply voltage required for the KDA 3.2-100-3-LPS-W1 spindle drive?
A: The KDA 3.2-100-3-LPS-W1 has a DC supply voltage of 300 VDC.
Q: How is the KDA 3.2-100-3-LPS-W1 cooled during operation?
A: A mounted heatsink blower provides forced cooling for this model.
Q: What is the rated current output of the KDA 3.2-100-3-LPS-W1?
A: The rated current for this spindle drive is 100 A.
Q: Which additional communication interface is available on the KDA 3.2-100-3-LPS-W1?
A: It supports a serial interface (RS 232 C) as an additional interface option.
Q: What is the maximum allowable installation elevation for the KDA 3.2-100-3-LPS-W1?
A: This drive can be installed up to 1000 meters above sea level.
