MAC090C-0-GD-4-C/110-B-0/WI520LV by Bosch Rexroth Indramat

Bosch Rexroth Indramat manufactures the MAC090C-0-GD-4-C/110-B-0/WI520LV, an AC servo motor in the MAC AC Servo Motors series. Designed for analog drives, it converts drive commands into precise torque and speed for positioning tables, pick-and-place heads, or packaging axes in industrial automation. The unit integrates a tachogenerator and an incremental encoder so the connected drive can correct motion in real time. Because both feedback devices are built into the motor housing, the installation stays compact and avoids separate external sensing components. This arrangement supports stable operation on assembly lines and material-handling cells.

The mechanical interface uses a centering flange measuring 110 mm, allowing direct mounting to gearboxes or machinery frames without additional alignment sleeves. Heat is removed by natural convection, so space around the housing should remain open for passive airflow. During operation, the shaft can reach a nominal speed of 3000 rpm, which suits many mid-range analog drive amplifiers. The housing carries an ingress rating of IP65, preventing dust and low-pressure water jets from reaching internal windings. Position data come from an incremental encoder that delivers 1250 lines per revolution, giving the drive a consistent signal for speed monitoring and positioning tasks.

Signal integrity is maintained because the encoder can switch at up to 300 kHz, and its electronics are powered from 5 V ±5 %, a level commonly provided by legacy analog control cards. Continuous duty is supported when ambient temperature stays below 45 °C, and installation sites remain within 1000 m of sea level to avoid derating caused by thinner air. The power connector is routed on side B, which can simplify cable routing when the motor is mounted close to machine guards or conveyor frames. The motor has no blocking brake, so any holding function at standstill must come from the drive or external mechanics. The GD winding code, standard tachometer quality, and TTL-compatible encoder output suit general-purpose velocity and position loops.