Product Description:

The HDC01.1-A100N-SE01-01-FW is a modular drive controller produced by Bosch Rexroth Indramat for the HDC DuraDrive Controllers series. The unit conditions plant power, maintains the intermediate DC link, and exchanges commands with higher-level motion controllers so that connected servo axes can follow precise speed and torque profiles. Its modular format allows it to serve as the control and power stage within drive cabinets that combine several motion functions in one installation. In industrial automation, it coordinates energy flow, manages braking events, and relays status data for fast, repeatable positioning in packaging lines, material-handling gantries, and assembly equipment.

Communication with the host controller is handled through the SERCOS interface, delivering deterministic cyclic data at a fixed rate of 2 Mbit/s while transmitting at -4.5 dBm. This supports synchronized command exchange where predictable update timing is required for controlled motion. Logic circuits draw only 25 W of control power, so cabinet heat rise remains low even when the three-phase mains section is charging the bus at up to 7 A. A DC-link capacitance of 2.35 mF stores energy that can be returned to the line or absorbed by the bleeder during braking. For sustained deceleration events, the built-in resistor can dissipate 0.5 kW, and the inverter can modulate motor voltage up to 400 Hz so high-speed spindles remain under closed-loop control.

During rapid stops, excess energy is first captured by the DC-bus dynamic brake and, when limits approach, the bleeder can momentarily shed up to 57.4 kW, with a cumulative ceiling of 31 kWs per cycle. The main power stage supplies up to 100 A of armature current, and a 12 Ω soft-start resistor moderates inrush to protect upstream fuses during power-up. The housing is rated IP20 for installation inside ventilated enclosures, and the unit withstands shocks of 15 g / 11 ms during transport or sudden machine stops. These operating characteristics suit axes that make frequent starts, stops, and reversals while still requiring controlled current delivery and stable cabinet installation.