Product Description:

The MAC090B-1-PD-1-B/110-A-0/J625/S01 is an AC servo motor manufactured by Bosch Rexroth Indramat as part of the MAC AC Servo Motors series. Intended for analog drive systems, it translates voltage-controlled current commands into accurate shaft rotation for positioning tables, feed axes, and other motion tasks in industrial automation. The mechanical envelope and flange geometry follow established series dimensions, so the motor fits standard mounting layouts used within this product line.

The motor’s auxiliary blower operates from a dedicated supply of AC 230 V, so the fan can be powered from common mains circuits. Heat is removed through axial surface cooling, where airflow runs along the housing and keeps winding temperature within continuous ratings. A nominal speed of 1500 rpm makes the unit suitable for low-speed machining or indexing duties. Accurate mechanical alignment is aided by a centering diameter of 110 mm, which matches standard pilot recesses on gearbox or machine flanges. Closed-loop control relies on incremental encoder feedback; the encoder emits uniform pulses that the drive amplifier counts to determine position and instantaneous speed during operation.

The unit is delivered with no holding brake, so any load-holding requirement must be met with external clamps or maintained drive torque. Electrical behavior is characterized by winding code PD, which indicates the resistance and inductance values used for current regulation. Three-phase power enters through a connector on side A, simplifying cable routing when the motor is mounted against vertical panels. For legacy velocity loops, an integrated tacho generator provides 3 V/1000 rpm, supplying the analog drive with proportional speed feedback that complements the incremental encoder used for finer position verification.