Product Description:

The HDS03.1-W075N-HA44-01-FW is a modular drive controller manufactured by Bosch Rexroth Indramat for the HDS Drive Controllers series. Integrated into DIAX04 multi-axis systems, it issues precise current commands that translate into torque and speed on connected servo motors. The unit serves as the closed-loop link between a machine's motion program and the electrical power delivered to each axis. Its role is to convert command information into controlled electrical output for repeatable axis response during acceleration, holding, and speed changes. Because it is part of a modular platform, the controller is intended to operate with matching system components in a multi-axis drive arrangement.

The controller exchanges setpoint data over an analog command interface, allowing straightforward pairing with legacy PLC cards or process transducers. Thermal management relies on a built-in internal air blower, which channels cabinet air across heat sink fins so continuous operation is possible without external ducting. Drive windings can draw up to 75 A of regulated output current, which affects motor sizing and cable cross-section for the installation. The housing has an IP 10 protection rating, so it must be mounted inside a closed electrical enclosure to prevent accidental contact with live parts. Reliable function is permitted within an ambient range of +5 to +45 °C, so most indoor production areas do not require additional climate control.

At elevations of up to 1000 m above sea level, the controller can maintain full current output without altitude-related derating. Derated operation is permitted until the surrounding air reaches +55 °C, which allows thermal margin above the normal ambient operating range. During storage or shipment, the circuitry can withstand temperatures from -30 to +85 °C, covering typical warehouse and transport conditions. Internal insulation clearances conform to Class C under DIN VDE 0110, providing the necessary spacing for the high switching voltages present on the drive's DC bus.