KDA 2.1-100-3-L0D-W1 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat KDA 2.1-100-3-L0D-W1 spindle drive is part of the KDA Spindle Drives series and operates with a rated current of 100 Amps at a DC supply voltage of 300 VDC. It features forced cooling with a mounted heatsink blower powered by a 220V AC source and supports SERCOS interface for speed command value. This drive is designed for operation in ambient temperatures from 5 to 45 degrees Celsius with maximum installation elevation up to 1000 meters above sea level.
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Product Description:
The KDA 2.1-100-3-L0D-W1 is a spindle drive module manufactured by Bosch Rexroth Indramat for the KDA Spindle Drives series. Designed to sit between a shared power supply and a high-speed motor, the unit converts a constant DC link into a regulated three-phase output. It supplies the current needed for accurate spindle acceleration, deceleration, and steady-state running in automated machining cells. In machine-tool service, this kind of control helps the spindle follow commanded speed changes during cutting, drilling, and similar processes. Because the module is used in spindle systems, it is suited to applications that need fast speed response and stable rotation under changing mechanical load.
The drive operates from a DC bus of 300 VDC and can deliver a continuous output of 100 A to the connected spindle motor. A dedicated heat sink blower is powered by an auxiliary source rated at 220 V/50-60 Hz, and this blower pulls air directly through the fins so heat is removed from the power section during sustained load. Thermal management uses forced cooling and works with an internal temperature monitor to protect the module during heavy operation. The electronics, power stage, and cooling hardware are intended for ambient conditions from 5 to 45 °C, which suits typical industrial indoor environments. By relying on a separate blower supply, the cooling system can continue moving air as required by the thermal design of the drive.
All motion commands enter the drive across a SERCOS Interface, and an additional channel accepts a digital position command value for applications that require synchronized position loops. This arrangement allows the control system to coordinate spindle behavior with the rest of the machine while keeping command transmission separate from the main power path. There is no second encoder input, so any additional position transducer must be handled through the primary feedback path. That arrangement keeps the feedback structure straightforward when only one motor feedback device is used on the spindle axis. Cooling air is supplied by a mounted heat sink blower, and operation is permitted up to 1000 m above sea level.
Frequently Asked Questions about KDA 2.1-100-3-L0D-W1:
Q: What is the DC supply voltage required for the KDA 2.1-100-3-L0D-W1 spindle drive?
A: The KDA 2.1-100-3-L0D-W1 operates with a DC supply voltage of 300 VDC.
Q: What is the rated current capacity of the KDA 2.1-100-3-L0D-W1?
A: This spindle drive provides a rated current of 100 A for high-power applications.
Q: What cooling method is implemented in the KDA 2.1-100-3-L0D-W1 spindle drive?
A: The KDA 2.1-100-3-L0D-W1 uses a mounted heatsink blower with forced cooling to manage heat dissipation.
Q: What power supply is needed for the heatsink blower of the KDA 2.1-100-3-L0D-W1?
A: An AC source of 220V at 50-60Hz is required for the heatsink blower in this model.
Q: What type of additional interface does the KDA 2.1-100-3-L0D-W1 spindle drive support?
A: This model supports digital position command value input through an additional interface.
