Product Description:

The HDD02.1-W040N-HD12 is a dual-axis drive controller produced by Bosch Rexroth Indramat within the HDD Drive Controllers series. The unit regulates current and velocity loops for two servo motors and exchanges motion commands with the host automation system. In an industrial cell, it acts as the intermediary between the machine PLC and the connected motors, supplying the regulated power required for precise positioning and coordinated movement on each axis. Because both channels are managed in one housing, the controller can support synchronized motion tasks such as transfer axes, gantries, and feeding systems without requiring separate single-axis units.

Communication is handled through the SERCOS fiber-optic interface, allowing real-time setpoint and status transfer to the controller. At a 4 kHz PWM frequency, the drive can deliver a continuous current of 15 A per axis, while at 8 kHz the continuous capability is 10 A per axis; the lower current at the higher switching rate reflects increased switching losses. For rapid accelerations, each axis can accept a peak demand of 40 A per axis, and the internal electronics are arranged so that total thermal dissipation does not exceed 95 W per axis under rated conditions. This arrangement lets the higher-level control system send synchronized commands while the drive closes the fast electrical control loops locally for stable motor response.

The enclosure carries an IP10 rating, so it must be mounted inside a protective cabinet that supplies forced airflow and keeps debris away from the power section. Reliable operation is specified up to 55 °C ambient and installation sites below 1000 m altitude; above either limit, current derating is required. Motor and encoder leads may each extend to 75 m without exceeding signal integrity limits, which supports machines where the controller and motors are installed at different points in the cabinet or on the frame. Additional features include a ready relay rated 24 VDC at 1 A, diagnostic analog outputs of ±10 VDC with 4 mA load capacity, and synchronized status messaging for the two controlled axes.