HDS02.1-W040N-HA29-01-FW
The HDS02.1-W040N-HA29-01-FW belongs to the HDS Drive Controllers series produced by Bosch Rexroth Indramat. Within a DIAX04 multi-axis system, this unit acts as the axis-specific regulator that closes the current and velocity loops for a connected servo power section and motor. By translating process-level references into precise PWM patterns, it provides the real-time torque and speed control required in machining centers, gantries, and material-handling cells. That control behavior lets the connected axis respond quickly to changing load conditions while maintaining commanded speed.
Its command path is strictly analog, so ±10 V setpoints or similar voltage references drive the control loops without a fieldbus layer. Thermal management uses a built-in air blower, and the fan channels cabinet air directly across the heat sink to maintain semiconductor temperatures. The unit is part of Line 02, which uses the mechanical backplane dimensions and terminal pinout of second-generation modules. Within the DIAX04 family, it follows the diagnostic structure used by the matching supply module. The power stage is rated for 40 A of continuous output current, allowing the controller to handle medium-frame motors that require sustained torque during interpolated moves or rapid accelerations.
The controller is Version 1, indicating the first logic board revision for this model. As an HDS Drive Controller, it uses standardized gate-drive circuitry and feedback connectors so it can operate beside other axis modules without custom wiring. Cabinet ventilation must preserve clear air paths to the blower inlets, because restricted intake can reduce current capacity during high-duty operation. Air must also move freely around the heat sink area so the blower can remove heat during long production runs.
