Product Description:

Bosch Rexroth Indramat builds the MAC025B-0-ZS-2-E/040-C-0/S006 as part of the MAC AC Servo Motors series. This unit is a motor for analog drives intended for light-duty positioning or velocity loops in automated machinery where compact form and fast response are required. Natural convection carries heat from the frame, and the absence of an internal blocking brake means any static holding force must be supplied by the drive or by mechanical locks.

The motor can supply a continuous shaft output of 0.60 Nm, which is its thermal limit for uninterrupted operation. A duty factor of 25% indicates that it is designed for intermittent cycles, allowing one quarter of each cycle to be energized before a rest interval. Acceleration and deceleration intervals of 17/14 ms show how quickly speed changes can be commanded within those cycles. The rotor can reach a maximum usable speed of 10000 rpm without overspeeding the winding insulation or bearings, while dynamic events returning energy to the drive can peak at 2.3 kW of regenerative power. A rotor inertia of 0.32 kgcm² balances quick servo response with adequate load smoothing, and the B05 flange pattern together with side A cabling simplifies integration into small frames.

Additional performance boundaries include a torque constant of 0.220 Nm/A, so drive current scales linearly with mechanical torque for straightforward control tuning. When brief overloads occur, the shaft can deliver a short-duration torque of 1.20 Nm without exceeding the permissible temperature rise. Operation beyond the linear back-EMF region starts at the knee speed of 8390 rpm. Above this point, the available torque falls as the tacho feedback and drive voltage reach their limits. The built-in tachometer provides 0.75 V per 1000 rpm for analog speed loops, maintaining stable regulation across the specified range.