Product Description:

The HMD01.1N-W0020 belongs to the HMD Double Axis Drive Controllers series from Bosch Rexroth Indramat. As a double-axis drive controller, it coordinates two servo channels from a single housing, helping reduce cabinet space while maintaining independent current regulation for each motor. This arrangement allows one module to serve paired servo axes in compact automation systems where panel width is limited. Independent channel control lets one axis accelerate or hold position without forcing the other axis to follow the same load profile. The unit is delivered in design version 1 and line version 1. Its housing measures 440 mm in height, 50 mm in width, and 262 mm in depth, so it fits narrow drive stacks without extra spacer hardware.

The controller operates on a rated control voltage of 24 V DC. Each axis can deliver a continuous current of 10 A, and the integrated brake terminals supply up to 1.5 A per axis for holding functions. These brake outputs allow each motor brake to be controlled directly by the drive rather than through a separate interface module. Brake cycling is limited to 0.5 Hz, and the coil’s electrical discharge must settle within 50 ms. Heat is removed by an integrated blower, and no integrated power supply is fitted, so the module expects DC-bus energy from an external HMV supply section.

During acceleration peaks, the current loop can reach an effective value of 20 A, while steady-state input demand sits at 24.5 A when both axes operate at rated load. When both channels are active, the control section and power stage share the thermal load within one compact enclosure. The nominal ambient limit is 40 °C, and output must be derated if enclosure temperature rises toward 55 °C. Total controller overhead power is 17 W, and the drive stage dissipates up to 2 × 135 W as heat under worst-case regeneration. The installed mass is 5.60 kg, which keeps the mechanical load on the mounting panel low.