Product Description:

The MAC025B-0-ZS-4-E/040-B-1/WI651LV belongs to the MAC AC Servo Motors series. It is an AC servo motor intended for closed-loop position and velocity control on machine axes powered by analog drive amplifiers. In automated tooling, packaging, and material-handling stations, it converts drive current into precise rotary motion so the host controller can maintain repeatable moves and stable cycle rates. That control method lets the amplifier correct small speed or position errors as process loads change during operation.

This model dissipates heat by natural convection, so no external fan or liquid circuit is required, and the installation should leave space for free airflow around the housing. A standard blocking brake is integrated to hold the shaft when power is removed and to reduce load drift on vertical or suspended axes. The frame uses a stator stack length of 025 and a frame size of B, which gives the motor its compact mechanical envelope. Power enters through a right-angle connector on side B, allowing cable routing toward the drive cabinet without crossing moving machine parts.

For speed and position information, the motor can be supplied with tacho feedback or absolute encoder packages, depending on the control arrangement used on the axis. The drive usually reads the shaft through an incremental encoder with standard mounting, which supports integration with legacy analog velocity loops and common feedback hardware. Because the unit is classified as a motor for analog drives, its signal behavior matches ±10 V command structures used in earlier control platforms. The close mechanical link between the rotor and feedback element reduces lag in the control loop, allowing Bosch Rexroth Indramat controllers to maintain stable torque regulation through changing machine loads and repeated motion cycles.